Shouding SD6271 Schematic [ru]

SHOUDING

SD6271

1MHz, 2A Step-Up Current Mode PWM Converter

General Description

The SD6271 is a current mode boost DC-DC conv

power MOSFET make this regulator highly power efficient. The internal compensation network also

minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects

erter. Its PWM circuitry with built-in 0.25

Ω

to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current.

The SD6271 is available in the SOT23-6L pa

application fields.

ckage and provides space-saving PCB for the

Features

 Adjustable Output up to 24V

 Internal Fixed PWM frequency: 1.0MHz

 Precision Feedback Reference Voltage: 0.6V (±2%)

 Internal 0.25

 Shutdown Current: 0.1μA

 Over Voltage Protection

 Over Temperature Protection

 Adjustable Over Current Protection: 0.5A ~ 2.5A

 Package: SOT23-6L

, 2A, 26V Power MOSFET

Ω

Applications

 Chargers

 LCD Displays

 Digital Cameras

 Handheld Devices

 Portable Products

T ypical Application Circuit

SD6271

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Function Block Diagram

SD6271

Pin Descriptions

SOT23-6L

Top View

AL*AL***

AL**

LX

GND

FB

1

2

3

**

*

*

*

*

6

OC

5

EN

4

Name No. I / O Description

LX 1 O Power Switch Output

GND 2 P IC Ground

FB 3 I Error Amplifier Inverting Input

EN 4 I Enable Control (Active High)

VCC 5 P IC Power Supply

OC 6 I Adjustable Current Limit (Floating Available)

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r

r

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Marking Information
SOT23-6L

AL* **

AL* **

**

Lot Number

year

Part Number Code

SD6271

Lot Numbe

Yea

: Production year’s last digit

Part Number Code: Part number identification code for this product. It should be always “AL”.

: Wafer lot number’s last two digits

For Example: 132386TB  86

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