Feeling FP6291 Schematic [ru]

FP6291

1MHz, 2.5A Step-Up Current Mode PWM Converter

General Description

The FP6291 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω 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 to a 0.6V

precision reference voltage and internal soft-start function can reduce the inrush current.

The FP6291 is available in the SOT23-6L package and provides space-saving PCB for the

application fields.

Features

 Adjustable Output up to 12V

 Internal Fixed PWM frequency: 1.0MHz

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

 Internal 0.2

 Shutdown Current: 0.1μA

 Over Temperature Protection

 Over Voltage Protection

 Adjustable Over Current Protection: 0.5A ~ 2.5A

 Package: SOT23-6L

Ω, 2.5A, 16V Power MOSFET

Applications

 Chargers

 LCD Displays

 Digital Cameras

 Handheld Devices

 Portable Products

Typical Application Circuit

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Website: http://www.feeling-tech.com.tw

Rev. 0.70

1/11

Function Block Diagram

GND

V

CC

EN

FP6291

OC

UVLO

FB

0. 6 V

Oscillator

1 MHz

Error Amp..

Soft

Start

Pin Descriptions

SOT23-6L

Top View

AL986

1

LX

2

GND

3

FB

6

OC

5

V

EN

4

CC

Shutdown

Circuitry

Compensation

Slope

OTP

PWM

Comp.

Adjustable

Current Limit

Control

and
Driver
Logic

19kΩ

2.5 A ~ 0. 5 A

OVP

Current Sense

Amp.

~

96 kΩ

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)

LX

PGND

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Website: http://www.feeling-tech.com.tw

Rev. 0.70

2/11

Marking Information

Year

SOT23-6L

AL986

Lot Number

Year

Part Number Code

Lot Number: Wafer lot number’s last two digits

For Example: 132386TB  86

: Production year’s last digit

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

FP6291

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Website: http://www.feeling-tech.com.tw

Rev. 0.70

3/11

FP6291

Ordering Information

Part Number Code Operating Temperature Package MOQ Description

FP6291LR-G1 AL

-40°C ~ 85°C

SOT23-6L 3000EA Tape & Reel

Absolute Maximum Ratings

Parameter Symbol Conditions

Supply Voltage VCC 0 6 V

LX Voltage VLX 0 16 V

EN,FB Voltage 0 6 V

Min. Typ. Max.

Unit

Power Dissipation PD

Thermal Resistance (Note1) θJA SOT23-6L +220

Junction Temperature TJ +150

Operating Temperature TOP -40 +85

Storage Temperature TST -65 +150

Lead Temperature (soldering, 10 sec) +260

SOT23-6L @TA=25°C

455 mW

Note1:

is measured in the natural convection at TA=25°C on a low effective thermal conductivity test

θ

JA

board of JEDEC 51-3 thermal measurement standard.

IR Re-flow Soldering Curve

°C / W

°C

°C

°C

°C

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Website: http://www.feeling-tech.com.tw

Rev. 0.70

4/11