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SEMICONDUCTOR
TECHNICAL DATA
300 POWER LOW DROPOUT REGULATOR
KR32S018M/F~KR32S033M/F
BIPOLAR LINEAR INTEGRATED CIRCUIT
The KR32SXXXM/F is an efficient linear voltage regulator with very low dropout voltage (Typically 10mV at light loads and 250mV at 300 ) The KR32SXXXM/F can be enabled, or shut down by a CMOS or TTL
G 1
E B
5
DIM MILLIMETERS _ A 2.9 + 0.2
B C 1.6+0.2/-0.1 _ 0.70 + 0.05 _ 0.4 + 0.1 2.8+0.2/-0.3 _ 1.9 + 0.2 0.95 _ 0.16 + 0.05 0.00-0.10 0.25+0.25/-0.15 0.60 0.55
compatible signal. When disabled. power consumption drops nearly to zero. Dropout ground current is minimized to help prolong battery life. Other key features include reversed battery protechion, current limiting, over temperature shutdown, and low noise performance with an ultra-low-noise option
A F
2
D 4 D E F G H I J K L
G
3
C
High output voltage accuracy : 1% Low quiescent current. : IQ(OFF) =3 Very low ground current : 1.8 (IOUT=150 ) Low dropout voltage : 250mV (IOUT=300 ) Built-in ON/OFF control terminal Built -in over current , Over heat protection function Reverse-battery protection
J
1. VIN 2. GND 3. ON/OFF CONTROL 4. BYPASS 5. VOUT
APPLICATIONS Laptop, notebook, and palmtop computers Cellular telephones and battery-powered equipment Consumer and personal electronics PC Card VCC and VPP regulation and switching SMPS post-regulator/dc-to-dc modules High-effciency linear power supplies
1 2 3 5 4
A K B C D J
E
G
LINE-UP
H
I
F
TSV VOUT (V) ITEM 1.8 2.5 2.6 2.7 2.8 2.85 2.9 3.0 3.1 3.3 KR32S018M KR32S025M KR32S026M KR32S027M KR32S028M KR32S285M KR32S029M KR32S030M KR32S031M KR32S033M MARKING B18 B25 B26 B27 B28 B2J B29 B30 B31 B33
SOT-89-5 ITEM KR32S018F KR32S025F KR32S026F KR32S027F KR32S028F KR32S285F KR32S029F KR32S030F KR32S031F KR32S033F MARKING D1 D2 D3 D4 D5 D6 D7 D8 D9 D0
1. BYPASS 2. GND 3. ON/OFF CONTROL 4. VIN 5. VOUT * Heat sink is common to 2.GND
1
2
3
2007. 2. 9
Revision No : 0
I J
FEATURES
L
H
1
5
2
3
4
TSV
DIM A B C D E F G H I J K
MILLIMETERS _ 4.50 + 0.10 _ 3.00 + 0.03 _ 1.60 + 0.10 _ 0.90 + 0.08 _ 2.50 + 0.05 _ 4.30 + 0.15 _ 0.42 + 0.03 _ 1.50 + 0.03 _ 0.47 + 0.03 _ 0.31 + 0.02 _ 1.50 + 0.07
SOT-89-5
1/6
KR32S018M/F~KR32S033M/F
MARKING
5 4
PIN DESCRIPTIONS
Lot No. Type Name
PIN NO. 1 2 NAME VIN GND ON/OFF Control Supply Input Ground Enable/Shutdown (Input):CMOS conpatible input. Logic high = Enable, Logic low or open = Shutdown Reference Bypass : Connect external 470pF capacitor to GND to reduce output noise. May be left open Regulator Output FUNCTION
3
1 2 3
< TSV > 4 Bypass
5
VOUT
MARKING
Lot No.
PIN DESCRIPTIONS
PIN NO. NAME FUNCTION Reference Bypass : Connect external 470pF capacitor to GND to reduce output Ground Enable/Shutdown (Input):CMOS conpatible input. Logic high = Enable, Logic low or open = Shutdown Supply Input Regulator Output
5
4
1
Type Name
Bypass
2
1 2 3
GND ON/OFF Control VIN VOUT
3 < SOT-89-5 > 4 5
Fig. 1 BLOCK DIAGRAM
Fig. 2 TEST CIRCUIT / APPLICATION CIRCUIT
VIN
1
5
VOUT
VIN = 3.8V
COUT BYPASS CBYPASS 4 +
Bandgap Ref.
1
5
VOUT = 2.8V COUT = 2.2 F (tantalum)
2 KR32S028M
ON/OFF CONTROL
ON/OFF 3 CONTROL
Current Limit Thermal Shutdown
3
4
CBYPASS = 470pF
2
GND
2007. 2. 9
Revision No : 1
2/6
KR32S018M/F~KR32S033M/F
MAXIMUM RATINGS (Ta=25
CHARACTERISTIC Supply Input Voltage ON/OFF Control Voltage Output Current TSV Power Dissipation Junction Temperature Operating Junction Temperature Storage Temperature Note) Package mounted on a ceramic board. (600m
2
)
SYMBOL VIN VC IOUT RATING 16 5 300 900 150 -40~125 -55~150 mW UNIT V V
(Note) SOT-89-5
PD Tj Topr Tstg 0.8m)
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VIN=VOUT+1V, IOUT=100
CHARACTERISTIC KR32S018M/F KR32S025M/F KR32S026M/F KR32S027M/F Output Voltage KR32S028M/F KR32S285M/F KR32S029M/F KR32S030M/F KR32S031M/F KR32S033M/F Load Regulation Line Regulation Reg Load Reg Line VD-1 Dropout Voltage VD-2 VD-3 VD-4 Temperature Coefficient of output voltage Ripple Rejection Output Noise Voltage Output ON-state voltage for control Output ON-state current for control Output OFF-state voltage for control Output OFF-state current for control TCVo RR VNO VC(ON) IC(ON) VC(OFF) IC(OFF-1) IC(OFF-2) IQ1 Quiescent Current IQ2 IQ3 IQ4 Quiescent Current (OFF Mode) IQ(OFF-1) IQ(OFF-2) VOUT SYMBOL
, COUT=4.7
, Tj=25 )
MIN. 1.782 2.475 2.574 2.673 2.772 2.8215 2.871 2.97 3.069 3.267 TYP. 1.8 2.5 2.6 2.7 2.8 2.85 2.9 3.0 3.1 3.3 0.05 0.009 10 115 175 250 40 75 30 5 0.01 0.01 80 350 1.8 4.0 0.05 0.10 MAX. 1.818 2.525 2.626 2.727 2.828 2.8785 2.929 3.03 3.131 3.333 0.7 0.05 60 175 300 400 80 20 0.4 -1 -2 130 650 2.5 5.5 3 8 V rms V ppm/ % %/V V UNIT
TEST CONDITION
VIN=VOUT+1V
Io=100 ~300 VIN=VOUT+1V~12V IOUT=100 IOUT=50 IOUT=150 IOUT=300 Tj=-40 f=120Hz IOUT=50 , COUT=2.2 , CBYPASS=470pF VC=2.0V VC=0.4V VC=0.18V VC=3V, IOUT=100 VC=3V, IOUT=50 VC=3V, IOUT=150 VC=3V, IOUT=300 VC=0.4V VC=0.18V 125
2.0 2 -
2007. 2. 9
Revision No : 1
3/6
KR32S018M/F~KR32S033M/F
fIN - R.R (1)
RIPPLE REJECTION R.R (dB)
VIN= 3.6V VOUT= 2.6V
fIN - R.R (2)
RIPPLE REJECTION R.R (dB)
0
VIN= 3.6V VOUT= 2.6V
0 -20 -40 -60 -80
IOUT= 100mA COUT= 1F
-20 -40 -60 -80 -100 10
IOUT = 100A COUT = 2.2F CBYP = 0.01F
-100 10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY fIN (Hz)
INPUT FREQUENCY fIN (Hz)
fIN - R.R (3)
RIPPLE REJECTION R.R (dB)
VIN= 3.6V VOUT= 2.6V
fIN - R.R (4)
RIPPLE REJECTION R.R (dB)
0 -20 -40 -60 -80 -100 10
IOUT = 1mA COUT = 2.2F CBYP = 0.01F VIN= 3.6V VOUT= 2.6V
0 -20 -40 -60 -80
IOUT= 1mA COUT= 1F
-100 10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY fIN (Hz)
INPUT FREQUENCY fIN (Hz)
fIN - R.R (5)
0 0
VIN= 3.6V
fIN - R.R (6)
VIN= 3.6V
RIPPLE REJECTION R.R (dB)
RIPPLE REJECTION R.R (dB)
-20 -40 -60 -80
VOUT= 2.6V
-20 -40 -60 -80 -100 10
VOUT= 2.6V
IOUT= 10mA COUT= 1F
IOUT = 10mA COUT = 2.2F CBYP = 0.01F
-100 10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY fIN (Hz)
INPUT FREQUENCY fIN (Hz)
2007. 2. 9
Revision No : 1
4/6
KR32S018M/F~KR32S033M/F
fIN - R.R (7)
RIPPLE REJECTION R.R (dB) RIPPLE REJECTION R.R (dB)
0
VIN= 3.6V VOUT= 2.6V
fIN - R.R (8)
0
VIN= 6V VOUT= 5V
-20 -40 -60 -80
IOUT= 100mA COUT= 1F
-20 -40 -60 -80 -100 10
IOUT = 100mA COUT = 2.2F CBYP = 0.01F
-100 10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY fIN (Hz)
INPUT FREQUENCY fIN (Hz)
VD - R.R (1)
RIPPLE REJECTION R.R (dB) RIPPLE REJECTION R.R (dB)
60 50
1mA
VD - R.R (2)
100 90 80 70 60 50 40 30 20 10 0 0 0.1 0.2
COUT = 2.2F CBYP = 0.01F 10mA IOUT = 100mA 1mA
40
10mA
30 20 10 0
IOUT = 100mA
COUT = 1F
0
0.1
0.2
0.3
0.4
0.3
0.4
DROPOUT VOLTAGE VD (V)
DROPOUT VOLTAGE VD (V)
CBYPASS - TIME
104
IOUT - VD
DROPOUT VOLTAGE VD (mV)
400
TURN ON TIME (s)
300
103
200
102
100
101 1 10
102
103
104
0
0
100
200
300
CAPACITANCE CBYPASS (pF)
OUTPUT CURRNET IOUT (mA)
2007. 2. 9
Revision No : 1
5/6
KR32S018M/F~KR32S033M/F
f - NOISE (1)
10
10mA, COUT = 1F
f - NOISE (2)
10 1
100mA
NOISE (mV/ Hz )
10-1 10-2 10
-3
NOISE (mV/ Hz )
1
10-1 10-2
1mA
10mA
10-4 10
1mA COUT = 1F CBYP = 10nF
10
-3
VOUT = 5V COUT = 10F Electrolytic
VOUT= 5V
100
1k
10k
100k
1M
10M
10-4 10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
f - NOISE (3)
10 10
f - NOISE (4)
NOISE (mV/ Hz )
1 10-1 10-2 10
-3
NOISE (mV/ Hz )
1 10-1 10-2 10
-3
10mA 100mA
100mA 10mA VOUT = 5V COUT = 22F Tantalum CBYP = 10nF 1mA
10-4 10
100
1k
10k
100k
1M
10M
10-4 10
VOUT = 5V COUT = 10F Electrolytic CBYP = 100pF
1mA
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
f - NOISE (5)
10 1
-1
f - NOISE (6)
10 1
10mA
-1
NOISE (mV/ Hz )
10mA 100mA
10
NOISE (mV/ Hz )
10
100mA
10-2
VOUT = 5V 1mA
10-2
VOUT = 5V
10-3 COUT = 10F 10-4 10
Electrolytic CBYP = 1nF
10-3 COUT = 10F 10-4 10
Electrolytic CBYP = 10nF
1mA
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
2007. 2. 9
Revision No : 1
6/6

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