LP6218S Datasheet, PDF (1/6 Pages) Lowpower Semiconductor inc – Output to Input Disconnect at Shutdown Mode

Preliminary Datasheet
LP6218S
High Efficiency 2.6A Boost DC/DC Convertor
General Description
The LP6218S is a current mode boost DC-DC
converter. Its PWM circuitry with built-in 2.6A
Current power MOSFET makes this converter
highly power efficiently. Selectable high switching
frequency allows faster loop response and easy
filtering with a low noise output. The non-inverting
input its error amplifier is connected to an internal
0.6V precision reference voltage. Soft-Start time
can be programmed with an external capacitor,
which sets the input current ramp rate. Current
mode control and external compensation network
make it easy and flexible to stabilize the system.
Ordering Information
LP6218S - □ □ □
F: Pb-Free
Package Type
B6: SOT23-6
Typical Application Circuit
Vin
Vout
C1
22uF
4.7uH
5 _Vin
FB ³
C2
22uF
C3
22pF
R1
180K
4
EN
6
ISET
LP6218SB6F
R2
30K
R3
30K
Features
Up to 94% efficiency　
Output to Input Disconnect at Shutdown Mode
Shut-down current:<1uA 　
Output voltage Up to 12V
Internal Compensation, Soft-start
1.2MHz fixed frequency switching
High switch on current:2.6A
Available in SOT23-6 Package 　
Applications
Battery products
Host Products
Panel
Pin Configurations
6
5
4
LP6218SB6F
1
2
3
Marking Information
Please see website:www.lowpowersemi.com.
LP6218S –01 Version 1.1Datasheet Jul.-2013
www.lowpowersemi.com - -
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