LP3203 Datasheet, PDF (4/10 Pages) Lowpower Semiconductor inc – 1.5MHZ,600mA,High Efficiency Synchronous PWM Step-Down DC/DC Convert

Preliminary Datasheet
Electrical Characteristics
LP3203
(VIN = 3.6V, VOUT = 2.5V, VREF = 0.6V, L = 2.2µH, CIN= 4.7µF, COUT= 10µF, TA= 25°C, IMAX = 600mA
unless otherwise specified)
Parameter
Input Voltage Range
Quiescent Current
Shutdown Current
Reference Voltage
Adjustable Output Range
Output
Voltage
Accuracy
Fixed
Symbol
VIN
IQ
ISHDN
VREF
VOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
Adjustable ΔVOUT
FB Input
Current
PMOSFET
RON
NMOSFET
RON
P-Channel
Current Limit
EN
Threshold
EN Leakage
Current
IFB
PRDS(ON)
NRDS(ON)
IP(LM)
VEN
VENL
VFB =
VIN
IOUT =
200mA
IOUT =
200mA
VIN =2.2
to 5.5V
Test Conditions
IOUT = 0mA, VFB = VREF + 5%
EN = GND
For adjustable output voltage
Min
2.5
0.58
VREF
VIN = 2.2 to 5.5V, VOUT = 1.2V 0A <
IOUT < 600mA
−3
VIN = 2.2 to 5.5V, VOUT = 1.5V 0A <
IOUT < 600mA
−3
VIN = 2.2 to 5.5V, VOUT = 1.8V 0A <
IOUT < 600mA
−3
VIN = 2.8 to 5.5V, VOUT = 2.5V 0A <
IOUT < 600mA
−3
VIN = 3.5 to 5.5V, VOUT = 3.3V 0A <
IOUT < 600mA
−3
VIN = VOUT + 0.2V to 5.5V, VIN ≧
3.5V 0A < IOUT < 600mA
−3
VIN = VOUT + 0.4V to 5.5V, VIN ≧
2.2V 0A < IOUT < 600mA
−3
-30
VIN = 3.6V
VIN = 3.6V
0.9
0.4
--
Typ
150
0.1
0.6
0.4
0.35
1
2
Max
5.5
200
1
0.62
VIN −
0.2
+3
+3
+3
+3
+3
+3
+3
30
0.58
1.5
1.5
Units
V
uA
uA
V
V
%
%
%
%
%
%
%
nA
Ω
Ω
A
V
uA
LP3203 – Ver. 1.0 Datasheet Dec.-2006
Page 4 of 10