SP7663ERL/TR Datasheet

IC型號(hào)：
SP7663ERL/TR
PDF描述：
Wide Input Voltage Range 6A, 600kHz, Buck Regulator
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1009.17KB
PDF頁(yè)數(shù)：
19頁(yè)
芯片廠家：
SIPEX

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SP7663

Wide Input Voltage Range

6A, 600kHz, Buck Regulator

FEATURES

鈻?/div>

4.75V to 22V Input Voltage Range using Single Supply

鈻?/div>

3V to 22V Input Voltage Range using Dual Supply

鈻?/div>

鹵% 0.8V Reference

鈻?/div>

6A Output Capability

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Current Limiting using Inductor DCR

鈻?/div>

Built in Low R

DS(ON)

Power Switches

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600 kHz Fixed Frequency Operation

鈻?/div>

Over Temperature Protection

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Short Circuit Protection with Auto-Restart

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Wide BW Amp Allows Type II or III Compensation

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Programmable Soft Start

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Fast Transient Response

鈻?

High Efficiency: Greater than 95%

Possible

鈻?

Nonsynchronous Start-Up into a Pre-Charged Output

鈻?

Available in RoHS Compliant, Lead Free Packaging:

Small 7mm x 4mm DFN

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U.S. Patent #6,922,04

PowerBlox

SP7663

DFN PACKAGE

7mm x 4mm (Option 2)

BOTTOM VIEW

Heatsink Pad 1

Connect to Lx

GND

2 P

GND

3 P

GND

2 2

GND

BST 17

LX 16

LX 15

LX 14

Heatsink Pad 3

Connect to V

INP

Pin 29

Heatsink Pad 2

Connect to GND

Pin 28

Pin 27

5 GND

6 V

7 COMP

9 GND

10 ISN

11 ISP

12 SWN

13 VINP

DESCRIPTION

The SP7663 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed

for use with a single 4.75V to 22V single supply or 3V to 22V input if an external Vcc is provided. The SP7663

provides a fully integrated buck regulator solution using a fixed 600kHz frequency, PWM voltage mode architecture.

Protection features include UVLO, thermal shutdown, output current limit and short circuit protection. The SP7663

is available in the space saving DFN package

TYPICAL APPLICATION CIRCUIT

VOUT

VIN

12V

22uF

1.5uH, 5.5 mOhm

4.99k鈩?/div>

0.1uF

3.30V, 0-6A

SWN PAD

GND PAD

GND

PGND

GND

VFB

COMP

GND

ISN

ISP

SWN

VIN

RZ3

3.09k鈩?/div>

100uF

CZ2

270pF

CP1

RZ2

75k鈩?1%

10pF

SP7663

ISP

ISN

VCC

UVIN

GND

VIN

BST

CZ3

180pF

68.1k鈩?1%

CVCC

4.7uF

GND

21.5k鈩?1%

CF1

100pF

CSS

47nF

ISN

6.8nF

VIN PAD

6.8nF

CBST

SD101AWS

DBST

ISP

R13

3.3鈩?/div>

Rs1

Cs1

Rs2

Cs2

1 Ohm

2.2nF

1 Ohm

2.2nF

Feb2-07 Rev O

SP7663 Wide Input Voltage Range 6A, 600kHz Buck Regulator

漏 2007 Sipex Corporation

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SP7663ERL/TR Datasheet

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