POWER LP6202 Synchronous boost dc/dc regulator Datasheet

Preliminary
Datasheet
LP6202
Synchronous Boost DC/DC Regulator
General Description
Features
The LP6202 is high efficiency synchronous, PWM
step-up DC/DC converters optimized to provide a
high efficiency solution to medium power system.
the devices work under the input voltage between
0.9V and 4.4V with a 1.4 MHz fixed frequency
switching. These features minimize overall solution
footprint by allowing the use of tiny, low profile
inductors and ceramic capacitors.
□ □
Low voltage start-up:0.9V
Shut-down current:<1uA
Output voltage:2.5-4.3V(Up to 5V with schottky)
Low switch on resistance RDS(ON),Internal
switch:0.35 OHM
High switch on current:1A
1.4MHz fixed frequency switching
Ordering Information
LP6202 -
Up to 94% efficiency
Available in SCT23-6 Package
□
F: Pb-Free
Pin Configurations
Package Type
B6: SOT23-6
Typical Application Circuit
Vin(0.9V-5V)
2.2uH
Vout_5V/600mA
1
+
6
SW
47uF
Vin
SOT23-6
OUT
5
+
4
EN
R3
100K
R1
1.5M
FB
Cout
100uF
3
R2
500K
2
ON/OFF
GN D
LP6202
Applications
Marking Information
AlK. Battery products
Please see website.
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Page 1 of 7
Preliminary
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Datasheet
LP6202
Page 2 of 7
Preliminary
Functional Pin Description
Datasheet
LP6202
Function Block Diagram
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Page 3 of 7
Preliminary
Datasheet
LP6202
Absolute Maximum Ratings
Supply Input Voltage---------------------------------------------------------------------------------------------------------------6V
Power Dissipation, PD @ TA = 25°C
SOT23-5--------------------------------------------------------------------------------------------------------600mW
Package Thermal Resistance
SOT23-5, θJA ---------------------------------------------------------------------------------------------------------------250°C/W
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------------260°C
Storage Temperature Range --------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility
HBM (Human Body Mode) ----------------------------------------------------------------------------------------------------2kV
MM(Machine-Mode)-----------------------------------------------------------------------------------------------------------200V
Recommended Operating Conditions
Supply Input Voltage-------------------------------------------------------------------------------------------------0.9V to 5.5V
EN Input Voltage -------------------------------------------------------------------------------------------------------0V to 5.5V
Operation Junction Temperature Range ------------------------------------------------------------------−40°C to 125°C
Operation Ambient TemperatureRange----------------------------------------------------------------------−40°C to 85°C
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Page 4 of 7
Preliminary
Datasheet
LP6202
Electrical Characteristics
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Page 5 of 7
Preliminary
Datasheet
LP6202
Typical Operating Characteristics
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Page 6 of 7
Preliminary
Datasheet
LP6202
Packaging Information
LP6202 – Ver. 1.0 Datasheet
Dec.-2007
Page 7 of 7
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