LP3205-12B5F POWER [Lowpower Semiconductor inc], LP3205-12B5F Datasheet - Page 4

• Manufacturer Part Number: LP3205-12B5F
• Description: 1.5MHZ,800mA,High Efficiency Synchronous PWM Step-Down DC/DC Convert
• Manufacturer: POWER [Lowpower Semiconductor inc]

Electrical Characteristics
Parameter
Input Voltage Range
Operating Supply Current
Standby Mode Supply
Current
Shutdown Current
Reference Voltage
Adjustable Output Range
Output
Voltage
Accuracy
FB Input
Current
PMOSFET
RON
NMOSFET
RON
P-Channel
Current Limit
EN
Threshold
EN Leakage
Current
LP3205 – Ver. 1.0 Datasheet
(VIN = 3.6V, VOUT = 2.5V, VREF = 0.6V, L = 4.7µH, CIN= 4.7µF, COUT= 10µF, TA= 25°C, IMAX = 800mA
unless otherwise specified)
Adjustable
IFB
PRDS(ON)
NRDS(ON)
IP(LM)
VEN
VENL
Fixed
Feb.-2007
Symbol
VIN
I
VREF
VOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
ΔVOUT
VFB =
VIN
IOUT =
200mA
IOUT =
200mA
VIN =2.2
to 5.5V
SHDN
Preliminary Datasheet
Test Conditions
I
I
EN = GND,Vin=4.2V
For adjustable output voltage
VIN = 2.2 to 5.5V, VOUT = 1.2V 0A <
IOUT < 800mA
VIN = 2.2 to 5.5V, VOUT = 1.5V 0A <
IOUT < 800mA
VIN = 2.2 to 5.5V, VOUT = 1.8V 0A <
IOUT < 800mA
VIN = 2.8 to 5.5V, VOUT = 2.5V 0A <
IOUT < 800mA
VIN = 3.5 to 5.5V, VOUT = 3.3V 0A <
IOUT < 800mA
VIN = VOUT + 0.2V to 5.5V, VIN ≧
3.5V 0A < IOUT < 800mA
VIN = VOUT + 0.4V to 5.5V, VIN ≧
2.2V 0A < IOUT < 800mA
VIN = 3.6V
VIN = 3.6V
OUT
OUT
=0mA,V
=0mA,V
FB
FB
=0.5V or V
=0.62V or V
OUT
OUT
=90%
=103%
Min
0.58
VREF
−3
−3
−3
−3
−3
−3
−3
-30
0.9
0.4
--
2.5
Typ
300
22
0.1
0.6
1
2
0.35
0.4
Page 4 of 10
LP3205
Max
5.5
400
35
1
0.62
VIN −
0.2
+3
+3
+3
+3
+3
+3
+3
30
0.58
1.5
1.5
Units
V
uA
V
V
%
%
%
%
%
%
%
nA
Ω
Ω
A
V
uA