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KEC |
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
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
FEATURES
High Output Voltage Accuracy : 1%
Low Quiescent Current. : IQ(OFF) =3
Very Low Ground Current : 350 (IOUT = 50mA)
Low Dropout Voltage : 175mV(IOUT=150mA)
Built-in ON/OFF control Terminal
Built -in Over Current , Over Heat Protection Function
Reverse-Battery Protection
KR15S018M~KR15S033M
BIPOLAR LINEAR INTEGRATED CIRCUIT
E
B
15
2
34
H
JJ
1. INPUT
2. GND
3. ON/OFF CONTROL
4. NOISE BYPASS
5. OUTPUT
DIM MILLIMETERS
A 2.9+_ 0.2
B 1.6+0.2/-0.1
C 0.70+_ 0.05
D 0.4+_ 0.1
E 2.8+0.2/-0.3
F 1.9+_ 0.2
G 0.95
H 0.16+_ 0.05
I 0.00-0.10
J 0.25+0.25/-0.15
K 0.60
L 0.55
15
2
34
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
VOUT (V)
1.8
2.5
2.6
2.7
2.8
2.85
2.9
3.0
3.1
3.3
TSV
ITEM
MARKING
KR15S018M
A18
KR15S025M
A25
KR15S026M
A26
KR15S027M
A27
KR15S028M
A28
KR15S285M
A2J
KR15S029M
A29
KR15S030M
A30
KR15S031M
A31
KR15S033M
A33
2007. 3. 19
www.DataSheet.in
Revision No : 1
1/6
KR15S018M~KR15S033M
MARKING
5
4
Lot No.
Type Name
123
< TSV >
PIN DESCRIPTIONS
PIN NO. NAME
FUNCTION
1 VIN Supply Input
2
GND
Ground
Enable/Shutdown (Input):CMOS conpatible
3
ON/OFF
Control
input. Logic high = Enable, Logic
low or open = Shutdown
Reference Bypass : Connect external 470pF
4 Bypass capacitor to GND to reduce output
noise. May be left open
5
VOUT
Regulator Output
Fig. 1 BLOCK DIAGRAM
Fig. 2 TEST CIRCUIT / APPLICATION CIRCUIT
VIN 1
BYPASS 4
CBYPASS
ON/OFF 3
CONTROL
+
Bandgap
Ref.
5 VOUT VIN = 3.8V
COUT
ON/OFF
CONTROL
Current Limit
Thermal Shutdown
2
GND
15
2 KR15S028M
34
VOUT = 2.8V
COUT = 2.2 µF
(tantalum)
CBYPASS = 470pF
2007. 3. 19
www.DataSheet.in
Revision No : 1
2/6
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