SEMICONDUCTOR
TECHNICAL DATA
150mA POWER LOW DROPOUT REGULATOR
The KR15SXXXM is an efficient linear voltage regulator with very low
dropout voltage(Typically 10mV at light loads and 165mV at 175mA)
The KR15SXXXM can be enabled, or shut down by a CMOS or TTL
KR15S018M~KR15S033M
BIPOLAR LINEAR INTEGRATED CIRCUIT
E
B
1
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
G
compatible signal. When disabled. power consumption drops nearly to zero.
A
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
2
D
4
E
F
G
H
I
J
K
L
F
G
3
C
L
H
J
1
5
FEATURES
High Output Voltage Accuracy : 1%
Low Quiescent Current. : I
Q(OFF)
=3
Very Low Ground Current : 350 (I
OUT
= 50mA)
Low Dropout Voltage : 175mV(I
OUT
=150mA)
Built-in ON/OFF control Terminal
Built -in Over Current , Over Heat Protection Function
Reverse-Battery Protection
J
1. INPUT
2. GND
3. ON/OFF CONTROL
4. NOISE BYPASS
5. OUTPUT
D
I
2
3
4
TSV
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
LINE-UP
TSV
V
OUT
(V)
ITEM
1.8
2.5
2.6
2.7
2.8
2.85
2.9
3.0
3.1
3.3
KR15S018M
KR15S025M
KR15S026M
KR15S027M
KR15S028M
KR15S285M
KR15S029M
KR15S030M
KR15S031M
KR15S033M
MARKING
A18
A25
A26
A27
A28
A2J
A29
A30
A31
A33
2007. 3. 19
Revision No : 1
1/6
KR15S018M~KR15S033M
MARKING
5
4
PIN DESCRIPTIONS
Lot No.
Type Name
PIN NO.
1
2
NAME
V
IN
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
V
OUT
Fig. 1 BLOCK DIAGRAM
Fig. 2 TEST CIRCUIT / APPLICATION CIRCUIT
VIN
1
5
VOUT
COUT
VIN = 3.8V
1
5
V
OUT
= 2.8V
C
OUT
= 2.2
µF
(tantalum)
BYPASS
C
BYPASS
4
+
Bandgap
Ref.
2 KR15S028M
ON/OFF
CONTROL
3
4
ON/OFF 3
CONTROL
Current Limit
Thermal Shutdown
C
BYPASS
= 470pF
2
GND
2007. 3. 19
Revision No : 1
2/6
KR15S018M~KR15S033M
MAXIMUM RATINGS (Ta=25
CHARACTERISTIC
Supply Input Voltage
ON/OFF Control Voltage
Output Current
Power Dissipation
Junction Temperature
Operating Junction Temperature
Storage Temperature
Note) Package mounted on a ceramic board. (600m
2
(Note)
)
SYMBOL
V
IN
V
C
I
OUT
P
D
T
j
Topr
Tstg
0.8m)
RATING
16
5
150
900
150
-40~125
-55~150
UNIT
V
V
mA
mW
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, V
IN
=V
OUT
+1V, I
OUT
=100 , C
OUT
=4.7
CHARACTERISTIC
KR15S018M
KR15S025M
KR15S026M
KR15S027M
KR15S028M
Output Voltage
KR15S285M
KR15S029M
KR15S030M
KR15S031M
KR15S033M
Load Regulation
Line Regulation
Reg Load
Reg Line
V
D
-1
Dropout Voltage
V
D
-2
V
D
-3
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
V
NO1
V
C(ON)
I
C(ON)
V
C(OFF)
I
C(OFF-1)
I
C(OFF-2)
I
Q1
Quiescent Current
I
Q2
I
Q3
I
Q(OFF-1)
Quiescent Current (OFF Mode)
I
Q(OFF-2)
V
C
=0.4V
V
C
=0.18V
V
C
=2.0V
Io=100~150mA
V
OUT
V
IN
=V
OUT
+1V
SYMBOL
, Tj=25 )
MIN.
1.782
2.475
2.574
2.673
2.772
2.8215
2.871
2.97
3.069
3.267
-
-
-
-
-
-
-
-
2.0
2
-
-
-
-
-
-
-
-
-
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
40
75
30
-
5
-
0.01
0.01
80
350
1.8
0.05
0.10
MAX.
1.818
2.525
2.626
2.727
2.828
V
2.8785
2.929
3.03
3.131
3.333
0.5
0.05
60
175
300
80
-
-
-
20
0.4
-1
-2
130
650
2.5
3
8
V
rms
V
ppm/
%
%/V
UNIT
TEST CONDITION
V
IN
=V
OUT
+1V~12V
I
OUT
=100
I
OUT
=50mA
I
OUT
=150mA
Tj=-40
f=120Hz
I
OUT
=50 , C
OUT
=2.2
C
BYPASS
=470pF
-
125
V
C
=3V, I
OUT
=100
V
C
=3V, I
OUT
=50
V
C
=3V, I
OUT
=150
V
C
=0.4V
V
C
=0.18V
2007. 3. 19
Revision No : 1
3/6
KR15S018M~KR15S033M
f
IN
- R.R (1)
RIPPLE REJECTION R.R (dB)
V
IN
= 3.6V
V
OUT
= 2.6V
f
IN
- R.R (2)
RIPPLE REJECTION R.R (dB)
0
V
IN
= 3.6V
V
OUT
= 2.6V
0
-20
-40
-60
-80
I
OUT
= 100mA
C
OUT
= 1µF
-20
-40
-60
-80
-100
10
I
OUT
= 100µA
C
OUT
= 2.2µF
C
BYP
= 0.01µF
-100
10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY f
IN
(Hz)
INPUT FREQUENCY f
IN
(Hz)
f
IN
- R.R (3)
RIPPLE REJECTION R.R (dB)
V
IN
= 3.6V
V
OUT
= 2.6V
f
IN
- R.R (4)
RIPPLE REJECTION R.R (dB)
0
-20
-40
-60
-80
-100
10
I
OUT
= 1mA
C
OUT
= 2.2µF
C
BYP
= 0.01µF
V
IN
= 3.6V
V
OUT
= 2.6V
0
-20
-40
-60
-80
I
OUT
= 1mA
C
OUT
= 1µF
-100
10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY f
IN
(Hz)
INPUT FREQUENCY f
IN
(Hz)
f
IN
- R.R (5)
0
0
V
IN
= 3.6V
f
IN
- R.R (6)
V
IN
= 3.6V
RIPPLE REJECTION R.R (dB)
RIPPLE REJECTION R.R (dB)
-20
-40
-60
-80
V
OUT
= 2.6V
-20
-40
-60
-80
-100
10
V
OUT
= 2.6V
I
OUT
= 10mA
C
OUT
= 1µF
I
OUT
= 10mA
C
OUT
= 2.2µF
C
BYP
= 0.01µF
-100
10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY f
IN
(Hz)
INPUT FREQUENCY f
IN
(Hz)
2007. 3. 19
Revision No : 1
4/6
KR15S018M~KR15S033M
f
IN
- R.R (7)
RIPPLE REJECTION R.R (dB)
RIPPLE REJECTION R.R (dB)
0
V
IN
= 3.6V
V
OUT
= 2.6V
f
IN
- R.R (8)
0
V
IN
= 6V
V
OUT
= 5V
-20
-40
-60
-80
I
OUT
= 100mA
C
OUT
= 1µF
-20
-40
-60
-80
-100
10
I
OUT
= 100mA
C
OUT
= 2.2µF
C
BYP
= 0.01µF
-100
10
100
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
INPUT FREQUENCY f
IN
(Hz)
INPUT FREQUENCY f
IN
(Hz)
V
D
- R.R (1)
RIPPLE REJECTION R.R (dB)
RIPPLE REJECTION R.R (dB)
60
50
1mA
V
D
- R.R (2)
100
90
80
70
60
50
40
30
20
10
0
0
0.1
0.2
C
OUT
= 2.2µF
C
BYP
= 0.01µF
10mA
I
OUT
= 100mA
1mA
40
10mA
30
20
10
0
I
OUT
= 100mA
C
OUT
= 1µF
0
0.1
0.2
0.3
0.4
0.3
0.4
DROPOUT VOLTAGE V
D
(V)
DROPOUT VOLTAGE V
D
(V)
C
BYPASS
- TIME
DROPOUT VOLTAGE V
D
(mV)
10
4
I
OUT
- V
D
320
C
OUT
= 2.2µF
280
C
BYP
= 0.01µF
125
C
TURN ON TIME (µs)
240
200
160
-40
C
25
C
10
3
10
2
120
80
40
0
0
40
80
120
160
10
1
10
1
10
2
10
3
10
4
CAPACITANCE C
BYPASS
(pF)
OUTPUT CURRNET I
OUT
(mA)
2007. 3. 19
Revision No : 1
5/6
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