LP6217 datasheet(1/6 Pages) POWER

部件名	LP6217

功能描述	1MHz fixed frequency switching

PDF	6 Pages

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制造商	POWER [Lowpower Semiconductor inc]

网页	http://www.lowpowersemi.com

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1 / 6 page

Preliminary

LP6217

LP6217 –00 Version 1.0 Datasheet

Sep.-2010

www.lowpowersemi.com

Page 1 of 6

26V/2.1A Current Boost With OCP IN SOT23-6 Package

General Description

The LP6217 is high efficiency Boost DC/DC

Converter, fixed frequency, current-mode step-up

converter with output to input disconnect. A PWM

step-up DC/DC converters optimized to provide a

high efficiency solution to medium power system.

Its PWM circuitry with built-in 2.1A@200mΩ

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. the devices

regulates the output voltage up to 12V from either a

2cell NiMH/NiCd or a single-cell Li-ion Battery

with a 1MHz fixed frequency switching. These

features minimize overall solution footprint by

allowing the use of tiny, low profile inductors and

ceramic capacitors.

Ordering Information

LP6217 - □ □

□

F: Pb-Free

Package Type

B6: SOT23-6

Marking Information

Please see website.

Features

Up to 94% efficiency

Shut-down current:<1uA 

Output voltage Up to 24V

1MHz fixed frequency switching

High switch on current:2.1A,24V@200mΩ

Adjustable OCP: 0.5A-2A

Available in SOT23-6 Package

Applications

Battery products

Host Products

Motor Power Devices

Typical Application Circuit

C3

22pF

R1

45K

LP6217

3

5

6

1

OCP

EN

FB

Vin

R3

20K

Vout

C1

22uF

Vin

C2

22uF

R2

10K

4.7uH

Pin Configurations

3

6

4

1

LP6217B6F

5

2

(SOT23-6)

类似零件编号 - LP6217

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