PT7740

更新时间： 2024-09-26 11:58:39

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
2页	146K
描述
32 Amp âCurrent Boosterâ for PT7778 Regulator

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PT7740 数据手册

PT7740—3.3V

32 Amp “Current Booster” for

PT7778 Regulator

SLTS117

(Revised 8/31/2000)

Description

The booster adds a parallel output

stage that is driven directly by the

regulator. Both operate in perfect

sychronization for a low noise solution.

The PT7740 only operates with a

PT7778 regulator and is not a stand-

alone product. Please refer to the

PT7778 data sheet for the perfor-

mance specifications. The current

booster has the same package options

as its companion regulator.

The PT7740 is a high-output 32

Amp “Current Booster” designed to

operate with the PT7778 regulator.

Up to two PT7740 boosters will

operate in parallel with a PT7778,

boosting output current in increments

of 32A. Combinations of a PT7778

series regulator and PT7740 current

boosters can supply enough power for

virtually any multiple mega-processor

application.

Pin-Out Information

Ordering Information

PT7740❏

Pin Function

14 GND

15 GND

16 GND

17 GND

18 GND

19 GND

20 V_out

Pin Function

Features

(For dimensions and PC Board layout,

Do not connect

• 32A Current Boost

• Tracks Vo of a PT7778

• High Efficiency

• Input Voltage Range:

3.1V to 3.6V

• Synchronized with PT7778

• 27-pin SIP Package

• Run up to 2 in Parallel (96A)

see Package Styles 1020 and 1030.)

Do not connect

V_in

PT Series Suffix

(PT1234X)

Case/Pin

Configuration

21 V_out

V_in

22 V_out

V_in

Vertical Through-Hole

Horizontal Through-Hole

Horizontal Surface Mount

10 V_in

23 V_out

24 V_out

11 V_in

25 V_out

12 Do not connect

13 GND

26 Do not connect

27 Master Sync In

Standard Application

P R O G R A M M I N G P I N S

REMOTE SENSE (+)

VID0

VID1

VID2

VID3

VID0

SNS(+)

V_OUT

L 1

7-11 _Vin

20-25

V_IN

PT7778

1 µH

Synch

Out

STBY

GND

SNS(-)

LOAD

13-19

C_IN

C_OUT

G N D

STBY*

REMOTE SENSE (–)

Synch

L 1

7-11 _Vin

20-25

PT7740

1 µH

GND

13-19

C_IN

C_OUT

External Capacitors: When used with a PT7778, the PT7740 requires a minimum ouput capacitance of 330µF. The maximum allowable output capacitance is

30,000µF. The PT7740 also requires a minimum input capacitance of 2400µF, which must be rated for a minimum of 2.0Arms of ripple current. For transient

or dynamic load applications, additional capacitance may be required. For further information, see the accompanying application note on capacitor selection for this

product.

Input Filter: An input filter inductor is optional for most applications. The input inductor must be sized to handle 32ADC with a typical value of 1µH.

For technical support and more information, see inside back cover or visit www.ti.com/powertrends

中文翻译

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与PT7740相关器件

型号	品牌	获取价格	描述	数据表
PT7740A	TI	获取价格	32 Amp âCurrent Boosterâ for PT7778 Regul
PT7740C	TI	获取价格	32 Amp âCurrent Boosterâ for PT7778 Regul
PT7740N	TI	获取价格	32 Amp âCurrent Boosterâ for PT7778 Regul
PT7741	TI	获取价格	32 Amp âCurrent Boosterâ for PT7775/PT777
PT7741A	TI	获取价格	32 Amp âCurrent Boosterâ for PT7775/PT777
PT7741C	ETC	获取价格	Analog IC
PT7741N	TI	获取价格	32 Amp âCurrent Boosterâ for PT7775/PT777
PT7742	TI	获取价格	20 Amp Current Booster for PT7708 Integrated Switching Regulator
PT7742-3.3V	TI	获取价格	Current Booster
PT7742800	TI	获取价格	20 Amp Current Booster for PT7708 Integrated Switching Regulator

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