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RT9169/H
100mA, 4A Quiescent Current CMOS LDO Regulator
General Description
The RT9169/H series are 100mA ultra-low quiescent current CMOS low dropout (LDO) regulator designed for battery-powered equipments. The output voltages range from 1.2V to 5V with 0.1V per step. The other features include 4A ultra-low quiescent, low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.
Features
Ultra-Low Quiescent Current: 4A Low Dropout: 450mV at 100mA Wide Operating Voltage Ranges: 2V to 6V Current Limiting Protection Only 1F Output Capacitor Required for Stability High Power Supply Rejection Ratio RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9169/HPackage Type ZL : TO-92 (L-Type) ZT : TO-92 (T-Type) X : SOT-89 V : SOT-23-3 VL : SOT-23-3 (L-Type) B : SOT-23-5
Applications
Battery-Powered Equipment Palmtops, Notebook Computers Hand-held Instruments PCMCIA Cards
Pin Configurations
(TOP VIEW)
VIN 3 1 VOUT 2 GND
1 GND VIN 3 2 VOUT
Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standard) Output Voltage 12 : 1.2V 13 : 1.3V : 49 : 4.9V 50 : 5.0V Chip Enable High (SOT-23-5 Only) Chip Enable Low
Note : 1. RT9169H package type is available in SOT-23-5 only. 2. RichTek Pb-free and Green products are : RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 100%matte tin (Sn) plating.
GND 1
SOT-23-3
SOT-23-3 (L-Type)
VIN
1 2 3
5
VOUT
2
3
GND EN/EN
VIN VOUT (TAB)
4
NC
SOT-89
3 2 1
SOT-23-5
VOUT GND VIN
Marking Information
For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail.
3 2 1
TO-92 (L-Type)
GND VIN VOUT
TO-92 (T-Type) DS9169/H-12 March 2007 www.richtek.com 1
RT9169/H
Typical Application Circuit
RT9169 VIN CIN 1uF VIN VOUT GND VOUT
+ +
COUT 1uF
VIN CIN 1uF
VIN EN/EN
VOUT RT9169/H GND
VOUT
RT9169 RT9169H Chip Enable Chip Enable
+
+ COUT 1uF
Function Block Diagram
VIN
Functional Pin Description
Pin Name VIN Pin Function Power Input Output Voltage Ground Chip Enable Control Input
+ EN/EN
Current Limit VOUT
VOUT GND EN/EN
Absolute Maximum Ratings
(Note 1)
Input Voltage ------------------------------------------------------------------------------------------------------------ 7V Power Dissipation, PD @ TA = 25C SOT-23-3 ---------------------------------------------------------------------------------------------------------------- 0.4W SOT-23-5 ---------------------------------------------------------------------------------------------------------------- 0.4W SOT-89 ------------------------------------------------------------------------------------------------------------------- 0.571W TO-92 --------------------------------------------------------------------------------------------------------------------- 0.625W Junction Temperature ------------------------------------------------------------------------------------------------- 150C Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260C Storage Temperature Range ---------------------------------------------------------------------------------------- -65C to 150C Package Thermal Resistance (Note 4) SOT-23-3, JA ----------------------------------------------------------------------------------------------------------- 250C/W SOT-23-5, JA ----------------------------------------------------------------------------------------------------------- 250C/W SOT-89, JA ------------------------------------------------------------------------------------------------------------- 175C/W TO-92, JA --------------------------------------------------------------------------------------------------------------- 160C/W ESD Susceptibility (Note 2) HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions
(Note 3)
Junction Temperature Range ---------------------------------------------------------------------------------------- -40C to 125C Ambient Temperature Range ---------------------------------------------------------------------------------------- -40C to 85C
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RT9169/H
Electrical Characteristics
(VIN = 5.5V, CIN = 1F, COUT = 1F, TA = 25C, unless otherwise specified)
Parameter Input Voltage Range Output Voltage Accuracy Maximum Output Current Current Limit GND Pin Current Symbol VIN VOUT IMAX ILIM IG IL = 1mA VIN = VOUT + 0.6V, VIN 3.6V IL = 100mA No Load IOUT = 100mA IOUT = 1mA, VIN 3.6V Dropout Voltage VDROP IOUT = 50mA, VIN 3.6V IOUT = 100mA, VIN 3.6V Line Regulation Load Regulation Output Noise Ripple Rejection Standby Current EN/EN RT9169/H (SOT-23-5) VIL VIH VLINE VIN = (VOUT + 0.3V) to 6V, VIN 3.6V, IOUT = 1mA ----0.2 ----0.6 -125 Test Conditions Min 2 -2 100 150 -Typ ---250 4 4 4 200 450 -0.01 250 30 0.1 ---Max 6 +2 --7 10 10 300 600 +0.2 0.04 --1 -2 -C %/V %/mA V dB A V mV Units V % mA mA A A
VLOAD ILOUT = 0mA to 100mA eNO PSRR BW = 100Hz to 50kHz COUT = 10F F = 1kHz, COUT = 1F EN = VIN or EN = 0
Logic High Threshold Logic Low Thermal Shutdown Protection
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2. Devices are ESD sensitive. Handling precaution is highly recommended. Note 3. The device is not guaranteed to function outside its operating conditions. Note 4. JA is measured in the natural convection at T A = 25C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard.
Application Information
A 1F (or larger) capacitor is recommended between VOUT and GND for stability. The part may oscillate without the capacitor. Any type of capacitor can be used, but not Aluminum electrolytes when operating below -25C. The capacitance may be increased without limit. A 1F capacitor (or larger) should be placed between VIN to GND.
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RT9169/H
Typical Operating Characteristics
Temperature Stability
3.7
Quiescient Current vs. Temperature
5
VOUT =
Quiescent Current ( A)
VOUT =
Output Voltage (V)
3.3
4
2.9
3
2.5
2
2.1
1
VIN = 5V
1.7 -50 -25 0 25 50 75 100 125
0 -30 0 30 60 90 120
Temperature (C)
Temperature (C)
Dropout Voltage (VIN-VOUT)
0.8
Short Circuit Current
500
Short Circuit Current (mA)
0.7
125C
Dropout Voltage (V)
0.6 0.5 0.4 0.3 0.2 0.1
400
25C
300
25C
125C
200
100
VOUT = 3.3V
0 0 20 40 60 80 100
0 0 1 2 3 4 5
I LOAD (mA)
Input/Output Differential (V)
PSRR
0 -10
PSRR
0 -10
50mA
-20
PSRR (dB)
PSRR (dB)
10mA
-20
50mA 10mA
-30 -40 -50 -60 -70
-30 -40 -50 -60 -70
VIN = 5V, VOUT = CIN = 1uF, TA = 125C COUT = 1uF Electrolytic Capacitor 10 100 1k 10k 100k 1M
VIN = 5V, VOUT = CIN = 1uF, TA = 125C COUT = 1uF Electrolytic Capacitor 10 100 1k 10k 100k 1M
Frequency (Hz)
Frequency (Hz)
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DS9169/H-12 March 2007
RT9169/H
Line Transient Response
Output Voltage Deviation (mV)
200 100 0 VOUT = 1.8V IOUT = 50mA TA = 25C COUT = 1uF Electrolytic
Line Transient Response
Output Voltage Deviation (mV)
200 VOUT = 3.3V 100 IOUT = 50mA 0 TA = 25C COUT = 1uF Electrolytic
300
Input Voltage Deviation (V)
Input Voltage Deviation (V)
6 5 4 3
6 5 4 3
Time (1ms/Div)
Time (1ms/Div)
Load Transient Response
Output Voltage Deviation (mV) Output Voltage Deviation (mV)
VIN = 5V 20 VOUT = 1.8V TA = 25C 0 -20 CIN = 1uF Ceramic COUT = 1uF Ceramic
Load Transient Response
VIN = 5V 50 VOUT = 1.8V TA = 25C 0 -50 CIN = 1uF Ceramic COUT = 1uF Ceramic
100 50 1 -50
200 100 10 -100
Load Current (mA)
Load Current (mA)
Time (500us/Div)
Time (500us/Div)
100
Load Transient Response
Output Voltage Deviation (mV)
CIN = 1uF Ceramic COUT = 1uF Ceramic
100
Load Transient Response
CIN = 1uF Ceramic COUT = 1uF Ceramic
Output Voltage Deviation (mV)
VIN = 5V 50 VOUT = 3.3V TA = 25C 0 -50
VIN = 5V 50 VOUT = 3.3V TA = 25C 0 -50
100 50 1 -50
200 100 10 -100
Load Current (mA)
Time (500us/Div)
Load Current (mA)
Time (500us/Div)
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RT9169/H
Outline Dimension
D
H L
C
B
e
A A1 b
Symbol A A1 B b C D e H L
Dimensions In Millimeters Min 0.889 0.000 1.397 0.356 2.591 2.692 1.803 0.080 0.300 Max 1.295 0.152 1.803 0.508 2.997 3.099 2.007 0.254 0.610
Dimensions In Inches Min 0.035 0.000 0.055 0.014 0.102 0.106 0.071 0.003 0.012 Max 0.051 0.006 0.071 0.020 0.118 0.122 0.079 0.010 0.024
SOT-23-3 Surface Mount Package
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RT9169/H
H D L C B
b A A1 e
Symbol A A1 B b C D e H L
Dimensions In Millimeters Min 0.889 0.000 1.397 0.356 2.591 2.692 0.838 0.080 0.300 Max 1.295 0.152 1.803 0.559 2.997 3.099 1.041 0.254 0.610
Dimensions In Inches Min 0.035 0.000 0.055 0.014 0.102 0.106 0.033 0.003 0.012 Max 0.051 0.006 0.071 0.022 0.118 0.122 0.041 0.010 0.024
SOT-23-5 Surface Mount Package
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RT9169/H
D D1
A
C
B
C1 e e H A b b
b1
Symbol A b B b1 C C1 D D1 e H
Dimensions In Millimeters Min 1.397 0.356 2.388 0.406 3.937 0.787 4.394 1.397 1.448 0.356 Max 1.600 0.483 2.591 0.533 4.242 1.194 4.597 1.753 1.549 0.432
Dimensions In Inches Min 0.055 0.014 0.094 0.016 0.155 0.031 0.173 0.055 0.057 0.014 Max 0.063 0.019 0.102 0.021 0.167 0.047 0.181 0.069 0.061 0.017
3-Lead SOT-89 Surface Mount Package
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DS9169/H-12 March 2007
RT9169/H
D
A
E
L
e D1
b
C
A1
Symbol A A1 b C D D1 E e L
Dimensions In Millimeters Min 3.175 1.143 0.406 0.406 4.445 3.429 4.318 1.143 12.700 Max 4.191 1.372 0.533 0.533 5.207 5.029 5.334 1.397
Dimensions In Inches Min 0.125 0.045 0.016 0.016 0.175 0.135 0.170 0.045 0.500 Max 0.165 0.054 0.021 0.021 0.205 0.198 0.210 0.055
3-Lead TO-92 Plastic Package
Richtek Technology Corporation
Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611
Richtek Technology Corporation
Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com
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