KR52S018M/F~
KR52S033M/F
SEMICONDUCTOR
TECHNICAL DATA
BIPOLAR LINEAR INTEGRATED CIRCUIT
500mA POWER LOW DROPOUT REGULATOR
E
The KR52SXXXM/F is an efficient linear voltage regulator with very low
dropout voltage(Typically 10mV at light loads and 350mV at 500mA)
B
DIM MILLIMETERS
_
A
2.9+0.2
The KR52SXXXM/F can be enabled, or shut down by a CMOS or TTL
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
1
2
3
5
4
B
1.6+0.2/-0.1
_
0.70+0.05
C
D
E
F
G
H
I
_
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
J
K
L
0.55
I
H
J
J
FEATURES
1
2
3
5
4
High Output Voltage Accuracy : 1%
Low Quiescent Current. : IQ(OFF) =3
Very Low Ground Current : 4.0mA(IOUT = 300mA)
Low Dropout Voltage : 350mV(IOUT=500mA)
Built-in ON/OFF control Terminal
Built -in Over Current , Over Heat Protection Function
Reverse-Battery Protection
1. INPUT
2. GND
3. ON/OFF CONTROL
4. NOISE BYPASS
5. OUTPUT
TSV
A
K
B
C
APPLICATIONS
J
Laptop, notebook, and palmtop computers
Cellular telephones and battery-powered equipment
Consumer and personal electronics
5
1
4
3
PC Card VCC and VPP regulation and switching
SMPS post-regulator/dc-to-dc modules
High-effciency linear power supplies
2
G
I
DIM MILLIMETERS
H
_
A
B
C
D
E
F
4.50 0.10
+
_
3.00 0.03
+
LINE-UP
_
1.60+0.10
1
2
3
_
0.90 0.08
+
_
TSV
SOT-89-5
2.50+0.05
_
VOUT (V)
4.30+0.15
_
0.42+0.03
G
H
I
ITEM
MARKING
C18
ITEM
MARKING
1. BYPASS
2. GND
3. ON/OFF CONTROL
_
1.50 0.03
+
_
0.47 0.03
+
_
1.8
2.5
2.6
2.7
2.8
2.85
2.9
3.0
3.1
3.3
KR52S018M
KR52S025M
KR52S026M
KR52S027M
KR52S028M
KR52S285M
KR52S029M
KR52S030M
KR52S031M
KR52S033M
* KR52S018F
* KR52S025F
* KR52S026F
* KR52S027F
* KR52S028F
* KR52S285F
* KR52S029F
* KR52S030F
* KR52S031F
* KR52S033F
E1
E2
E3
E4
E5
E6
E7
E8
E9
E0
4. V
J
0.31 0.02
+
IN
5. V
OUT
_
K
1.50+0.07
C25
* Heat sink is common to 2.GND
C26
C27
SOT-89-5
C28
C2J
C29
C30
C31
C33
* : Under development
2007. 3. 19
Revision No : 2
1/5