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NInput Voltage Range : 0.9~10.0V NOutput Voltage Range : 1.5~6.5V(2.5%) NOscillator Frequency : 300kHz(15%) NPWM/PFM Switching Control (XC6368) NHigh Efficiency NSOT-25 Package : 84% (typ.)
GElectronic Information Organizers GPalmtops GCellular and portable phones GPortable Audio Systems GVarious Multi-function Power Supplies
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Input voltage range : 0.9V~10V Operating voltage range : 2.0V~10V Output voltage range : 1.5V~6.5V programmable in 0.1V steps (2.5%) Oscillator frequency : 300, 100kHz (15%) Custom products for 180, 500kHz Output Current : 200mA + (VIN=1.8V, VOUT=3.3V) High Efficiency : 84% (typ.) Stand-by capability : ISTB=0.5A (max.) Selection : Soft start set-up external Output Voltage set-up internal (VOUT) Output Voltage set-up external (FB) Package : SOT-25
The XC6367/68 series are multi-functional step-up DC/DC converter controllers with built-in high speed, low ON resistance drivers. Large output currents are possible using an externally connected transistor, coil, diode and condenser. Output voltage is selectable in 0.1 steps within a 1.5V ~ 6.5V range (2.5%). For output voltages outside this range, we recommend this FB version, which has a 1.0V internal reference voltage. Using this version, the required output voltage can be set-up using 2 external resistors. With a 300kHz switching frequency, the size of the external components can be reduced. Control switches from PWM to PFM during light loads with the XC6368 (PWM/PFM switchable) and the series is highly efficient from light loads to large output currents. Soft start time of XC6367/68A, B, and C series is internally set to 10msec and XC6367/68C, D, and F series regulate soft start time by connecting resistors and capacitors exteranally. During stand-by time (CE pin "Low"), current consumption is reduced to less than 0.5A.
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PIN NUMBER XC6367 / XC6368 A, B, C, D 5 2 4 3 E, F 5 4 1 EXT VDD GND CE VOUT (FB) External transistor connection Supply voltage input Ground Chip Enable (C, D, F types : soft start set-up external, soft start capacitor connected) Output voltage monitor (E, F types : output voltage monitor, power supply) (B, D types : output voltage set-up external) PIN NAME FUNCTION
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2
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GSelection Guide
START
Soft-start set-up internal Output voltage set-up internal (VOUT) VOUT=VDD pin Output voltage set-up external (FB) Soft-start set-up external Output voltage set-up internal (VOUT) VOUT=VDD pin Output voltage set-up external (FB)
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GOrdering Information
XC6367qwerty XC6367 Series
SYMBOL
q
PWM Control
VOUT/FB SOFT-START Set-up Internal Set-up Internal Set-up External Set-up External Set-up Internal Set-up External VOUT FB VOUT FB VOUT VOUT
A B C D E F
w e r
Output voltage value : e.g. 3.0V output : (w=3, e=0), F.B. products (B,D types) : (w=1, e=0) 3 1 2 5 Oscillator Frequency 300kHz Oscillator Frequency 100kHz Oscillator Frequency 180kHz (Custom) Oscillator Frequency 500kHz (Custom) Package SOT-25 Embossed Tape : Standard Feed : Reverse Feed
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t y
M R L
XC6368qwerty XC6368 Series
PWM/PFM switching control (same as XC6367 series)
GSOT-25
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GXC6367 Series
q
qwer
w
4
e
r
410
GXC6368 Series
q
qwer
w
4
e
r
411
XC6367, XC6368 Series A, C, E, F types (VOUT)
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Note : Connecting VOUT and VDD internally with E, F types.
XC6367, XC6368 Series B,D types (FB)
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Ta=25C PARAMETER VDD Pin Voltage VOUT Pin Voltage FB Pin Voltage CE Pin Voltage EXT Pin Voltage EXT Pin Current Continuous Total Power Dissipation Operating Ambient Temperature Storage Temperature SYMBOL VDD VOUT VFB VCE VEXT IEXT Pd Topr Tstg RATINGS -0.3 ~ 12 -0.3 ~ 12 -0.3 ~ 12 -0.3 ~ 12 -0.3 ~ VDD +0.3 100 150 -30 ~ +80 -40 ~ +125 UNITS V V V V V mA mW C C
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XC6367A333MR, XC6368A333MR
PARAMETER Output Voltage Supply Voltage (Note 1) Maximum Input Voltage Oscillation Start-up Voltage 1 Oscillation Start-up Voltage 2 Oscillation Hold Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) CE "High" Voltage CE "Low" Voltage EXT "High" ON Resistance EXT "Low" ON Resistance Efficiency (Note 2) Soft-Start Time SYMBOL VOUT VDD VIN VST1 VST2 VHLD IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY VCEH VCEL REXTH REXTL EFFI TSS
(VOUT=3.3V, FOSC=300kHz) CONDITIONS MIN 2.0 10.0 Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE : Apply voltage Use of a 2SX1628 transistor recommended, IOUT=1.0mA VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 Same as IDD1 IOUT=0mA VOUT=set-up output voltage x0.95 VOUT=set-up output voltage x0.95 Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V 255 78 15 0.65 5 TYP 130 20 300 85 25 29 19 84 10
Ta=25C MAX UNITS V V V V V V A A A kHz % % V V % msec 10.0 0.9 0.8 0.7 200 35 0.5 345 92 35 0.20 43 27 20 3.218 3.300 3.383
Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=130mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
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XC6367A503MR, XC6368A503MR
PARAMETER Output Voltage Supply Voltage (Note 1) Maximum Input Voltage Oscillation Start-up Voltage 1 Oscillation Start-up Voltage 2 Oscillation Hold Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) CE "High" Voltage SYMBOL VOUT VDD VIN VST1 VST2 VHLD IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY VCEH VCEL REXTH REXTL EFFI TSS
(VOUT=5.0V, FOSC=300kHz) CONDITIONS MIN 2.0 10.0 Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE : Apply voltage Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 Same as IDD1 IOUT=0mA VOUT=set-up output voltage x0.95 VOUT=set-up output voltage x0.95 Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V 255 78 15 0.65 5 TYP 180 22 300 85 25 20 13 87 10
Ta=25C MAX UNITS V V V V V V A A A kHz % % V V % msec 10.0 0.9 0.8 0.7 280 38 0.5 345 92 35 0.20 29 19 20 4.875 5.000 5.125
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CE "Low" Voltage EXT "High" ON Resistance EXT "Low" ON Resistance Efficiency (Note 2) Soft-Start Time
Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=200mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
Series Amendments:
XC6367C, XC6368C series
Please note that the following condition applies : Soft Start Time (TSS) : Connect RSS, CSS. CE 0V 3.0V
XC6367E, XC6368E series
Please delete 'Supply Voltage (VDD) ' and '(Note 1)' Please add the following note : Note 4: There are no products within the XC6367E, XC6368E series range which have a set-up voltage of less than 2.0V.
XC6367F, XC6368F series
Please note that the following condition applies : Soft Start Time (TSS) : Connect RSS, CSS. CE 0V 3.0V
Please delete 'Supply Voltage (VDD) ' and '(Note 1)' Please add the following note : Note 4: There are no products within the XC6367F, XC6368F series range which have a set-up voltage of less than 2.0V.
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XC6367B103MR, XC6368B103MR
PARAMETER Output Voltage Supply Voltage (Note 1) Maximum Input Voltage Oscillation Start-up Voltage 1 Oscillation Start-up Voltage 2 Oscillation Hold Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) CE "High" Voltage CE "Low" Voltage EXT "High" ON Resistance EXT "Low" ON Resistance Efficiency (Note 2) Soft-Start Time SYMBOL VOUT VDD VIN VST1 VST2 VHLD IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY VCEH VCEL REXTH REXTL EFFI TSS
VOUT=3.0V (when set-up), FOSC=300kHz CONDITIONS MIN 2.0 10.0 Use of a 2SD1628 transistor, IOUT=1.0mA VDD=CE : Apply voltage, FB=0V Use of a 2SD1628 transistor, IOUT=1.0mA VDD=CE=2.85V, FB=0V VDD=CE=3.5V, FB=1.2V VDD=2.85V, CE=0V, FB=0V Same as IDD1 Same as IDD1 IOUT=0mA VDD=2.85V, FB=0V VDD=2.85V, FB=0V Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V 255 78 15 0.65 5 TYP 120 20 300 85 25 32 20 84 10
Ta=25C MAX UNITS V V V V V V A A A kHz % % V V % msec 10.0 0.9 0.8 0.7 190 34 0.5 345 92 35 0.20 47 30 20 2.925 3.000 3.075
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Measuring conditions: Unless otherwise specified, VIN=1.8V, IOUT=120mA External components : RFB1 = 400k, RFB2 = 200k, CFB = 47pF Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
Series Amendments:
XC6367D, XC6368D series
Please note that the following condition applies : Soft Start Time (TSS) : Connect RSS, CSS. CE 0V 3.0V
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XC6367A331MR, XC6368A331MR
PARAMETER Output Voltage Supply Voltage (Note 1) Maximum Input Voltage Oscillation Start-up Voltage 1 Oscillation Start-up Voltage 2 Oscillation Hold Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) CE "High" Voltage SYMBOL VOUT VDD VIN VST1 VST2 VHLD IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY VCEH VCEL REXTH REXTL EFFI TSS
(VOUT=3.3V, FOSC=100kHz) CONDITIONS MIN 2.0 10.0 Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE : Apply voltage Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 Same as IDD1 IOUT=0mA VOUT=set-up output voltage x0.95 VOUT=set-up output voltage x0.95 Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V 85 78 15 0.65 5 TYP 50 11 100 85 25 29 19 84 10
Ta=25C MAX UNITS V V V V V V A A A kHz % % V V % msec 10.0 0.9 0.8 0.7 100 20 0.5 115 92 35 0.20 43 27 20 3.218 3.300 3.383
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CE "Low" Voltage EXT "High" ON Resistance EXT "Low" ON Resistance Efficiency (Note 2) Soft-Start Time
Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=130mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
416
XC6367A501MR, XC6368A501MR
PARAMETER Output Voltage Supply Voltage (Note 1) Maximum Input Voltage Oscillation Start-up Voltage 1 Oscillation Start-up Voltage 2 Oscillation Hold Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) CE "High" Voltage CE "Low" Voltage EXT "High" ON Resistance EXT "Low" ON Resistance Efficiency (Note 2) Soft-Start Time SYMBOL VOUT VDD VIN VST1 VST2 VHLD IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY VCEH VCEL REXTH REXTL EFFI TSS
(VOUT=5.0V, FOSC=100kHz) CONDITIONS MIN 2.0 10.0 Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE : Apply voltage Use of a 2SD1628 transistor, IOUT=1.0mA VOUT=CE=set-up output voltage x 0.95 VOUT=CE=set-up output voltage + 0.5V VOUT=set-up output voltage x 0.95, CE=0V Same as IDD1 Same as IDD1 IOUT=0mA VOUT=set-up output voltage x0.95 VOUT=set-up output voltage x0.95 Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V 85 78 15 0.65 5 TYP 70 11 100 85 25 20 13 87 10
Ta=25C MAX UNITS V V V V V V A A A kHz % % V V % msec 10.0 0.9 0.8 0.7 120 22 0.5 115 92 35 0.20 29 19 20 4.875 5.000 5.125
4
Measuring conditions: Unless otherwise specified, connect VDD to VOUT ; VIN=set-up output voltage x 0.6, IOUT=200mA Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
417
XC6367B101MR, XC6368B101MR
PARAMETER Output Voltage Supply Voltage (Note 1) Maximum Input Voltage Oscillation Start-up Voltage 1 Oscillation Start-up Voltage 2 Oscillation Hold Voltage Supply Current 1 Supply Current 2 Stand-by Current Oscillator Frequency Maximum Duty Ratio PFM Duty Ratio (Note 3) CE "High" Voltage SYMBOL VOUT VDD VIN VST1 VST2 VHLD IDD1 IDD2 ISTB FOSC MAXDTY PFMDTY VCEH VCEL REXTH REXTL EFFI TSS
VOUT=3.0V (when set-up), FOSC=100kHz CONDITIONS MIN 2.0 10.0 Use of a 2SD1628 transistor, IOUT=1.0mA VDD=CE : Apply voltage, FB=0V Use of a 2SD1628 transistor, IOUT=1.0mA VDD=CE=2.85V, FB=0V VDD=CE=3.5V, FB=1.2V VDD=2.85V, CE=0V, FB=0V Same as IDD1 Same as IDD1 IOUT=0mA VDD=2.85V, FB=0V VDD=2.85V, FB=0V Same as IDD1, VEXT=VOUT-0.4V Same as IDD1, VEXT=0.4V 85 78 15 0.65 5 TYP 50 11 100 85 25 32 20 84 10
Ta=25C MAX UNITS V V V V V V A A A kHz % % V V % msec 10.0 0.9 0.8 0.7 90 20 0.5 115 92 35 0.20 47 30 20 2.925 3.000 3.075
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CE "Low" Voltage EXT "High" ON Resistance EXT "Low" ON Resistance Efficiency (Note 2) Soft-Start Time
Measuring conditions: Unless otherwise specified, VIN=1.8V, IOUT=120mA External components : RFB1 = 400k, RFB2 = 200k, CFB = 47pF Note 1: When taking VDD from another power source please ensure that VDD = 2.0V or more. Oscillation will occur with a value of VDD = 0.8V or more, but with a value of VDD = 2.0V or more, output voltage and oscillation frequency will be stable. Note 2: EFFI = {[(output voltage) x (output current)] / [(input voltage) x (input current)} x 100 Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
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Recommended Components
Tr : XP161A1355PR (Torex N-channel Power MOSFET) As the breakdown voltage of XP161A1355PR is 8V, take care with the power supply voltage. With output voltages over 6V, use the XP161A1265PR with a breakdown voltage of 12V. VST1 : XP161A1355PR = 1.2V (max) XP161A1265PR = 1.5V (max) : 22H (Sumida CR54, FOSC=300kHz) 47H (Sumida CR75, FOSC=100, 180kHz) 10H (Sumida CR54, FOSC=500kHz) : MA2Q735 (Schottky Diode, Matsushita) : 16V 220F (Aluminium Electrolytic Capacitor) : 16V 47F + 47F (Tantalum capacitor, Nichicon MCE)
L SD CIN CL
NPN Tr type :
Tr Rb Cb : 2SD1628 (Sanyo) : 500 (Adjust according to load and Tr. hFE levels) : 2200pF (Ceramic type) Set up so that CB 1 / (2 x RB x FOSC x 0.7)
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C, D, F type (soft-start externally set-up) :
CSS : 0.1F (Ceramic capacitor) RSS : 470k (C, F type), 220k (D type)
B, D type (FB versions)
RFB : Set up so that RFB1 / RFB2 = VOUT - 1 (VOUT = set-up output voltage), Please use with RFB1 + RFB2 2M CFB : Set up so that fzfb = 1/ (2 x x CFB x RFB1) is within the 0.1 to 20kHz range (10kHz conventional) Adjustments necessary in respect of L, CL. e.g VOUT = 3.0V RFB1 = 400k, RFB2 = 200k, CFB = 47pF
If using a Torex MOSFET, We recommend using one which has a gate protection diode built-in.
Rds(ON) Rds(ON)
Gate Protection Diode Built-in XP161A1355PR 0.15 @Vgs=1.5V XP161A1265PR 0.095 @Vgs=2.5V
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GNotes on Use
Take ample care to ensure that none of the IC's, nor the external component's, absolute maximum ratings are exceeded. Be extremely careful when selecting parts and do not limit your reference to the specifications and characteristics for the DC/DC converter alone. The IC also depends, to a great extent, upon the external components. Arrange the peripherals in the environs of the IC. In order to reduce wiring impedance, use short, thick wires. In particular, wire the load capacitor as close as possible and strengthen the ground wiring sufficiently. Ground current during switching may cause the IC's operations to become unstable due to changes in ground voltage, so please strengthen the IC's GND pin surroundings.
GExternal Components External Components
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1. Soft start time set up
If you wish to lengthen soft start time we recommend that you use the C or D versions of the series which have soft start time externally set up. Soft start time (TSS) is between MIN & MAX, as indicated in the graphs below, so please select soft start condenser capacitance (CSS) to suit your application.
RFB1
CFB set up
(2 x CFB x RFB1 )
In order to achieve a value for fzfb within the range of 0.1kHz to 20kHz, we recommend that values for RFB1 & CFB are selected from the area indicated within the lines of fzfb = 0.1kHz and fzfb = 20 kHz as shown on the graph below. Please select combinations of values as close to the fzfb = 10kHz line as possible.
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Electrical Characteristics
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT
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425
(1) OUTPUT VOLTAGE vs. OUTPUT CURRENT
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426
(2) EFFICIENCY vs. OUTPUT CURRENT
4
427
(2) EFFICIENCY vs. OUTPUT CURRENT
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(3) RIPPLE VOLTAGE vs. OUTPUT CURRENT
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429
(3) RIPPLE VOLTAGE vs. OUTPUT CURRENT
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430
(4) OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE
(5) SUPPLY CURRENT 1 vs. AMBIENT TEMPERATURE
(6) SUPPLY CURRENT 2 vs. AMBIENT TEMPERATURE
(7) STAND-BY CURRENT vs. AMBIENT TEMPERATURE
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(8) EXT"H"ON RESISTANCE vs. AMBIENT TEMPERATURE
(9) EXT"L"ON RESISTANCE vs. AMBIENT TEMPERATURE
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(10) OSCILLATION FREQUENCY vs. AMBIENT TEMPERATURE
(11) MAX. DUTY RATIO vs. AMBIENT TEMPERATURE
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(12) PFM DUTY RATIO vs. AMBIENT TEMPERATURE
(13) EFFICIENCY vs. AMBIENT TEMPERATURE
(14) OPERATING START VOLTAGE vs. AMBIENT TEMPERATURE
(15) OPERATING HOLD VOLTAGE vs. AMBIENT TEMPERATURE
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(16) OSCILLATION START VOLTAGE vs. AMBIENT TEMPERATURE
(17) SOFT START TIME vs. AMBIENT TEMPERATURE
(18) CE "L"VOLTAGE vs. AMBIENT TEMPERATURE
(19) CE "H"VOLTAGE vs. AMBIENT TEMPERATURE
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433
(20) LOAD TRANSIENT RESPONSE
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