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LT1054ISW-PBF

更新时间： 2024-11-14 12:19:15

品牌	Logo	应用领域
凌特 - Linear		转换器调节器开关
页数	文件大小	规格书
16页	274K
描述
Switched-Capacitor Voltage Converter with Regulator

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中文翻译

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数据手册

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LT1054ISW-PBF 数据手册

LT1054/LT1054L

Switched-Capacitor Voltage

Converter with Regulator

FEATURES

DESCRIPTION

The LT^®1054 is a monolithic, bipolar, switched-capacitor

voltage converter and regulator. The LT1054 provides

higher output current than previously available converters

with significantly lower voltage losses. An adaptive switch

driver scheme optimizes efficiency over a wide range of

output currents. Total voltage loss at 100mA output current

is typically 1.1V. This holds true over the full supply voltage

range of 3.5V to 15V. Quiescent current is typically 2.5mA.

■ꢀ

Output Current: 100mA (LT1054)

125mA (LT1054L)

■

Reference and Error Ampliﬁer for Regulation

■

Low Loss: 1.1V at 100mA

■

Operating Range:3.5V to 15V (LT1054)

3.5V to 7V (LT1054L)

■

External Shutdown

■

External Oscillator Synchronization

■

Can Be Paralleled

The LT1054 also provides regulation, a feature not previ-

ouslyavailableinswitched-capacitorvoltageconverters.By

adding an external resistive divider a regulated output can

be obtained. This output will be regulated against changes

in both input voltage and output current. The LT1054 can

also be shut down by grounding the feedback pin. Supply

current in shutdown is less than 100µA.

Pin Compatible with the LTC^®1044/ICL7660

■

Available in SW16 and SO-8 Packages

APPLICATIONS

■

Voltage Inverter

■

Voltage Regulator

The internal oscillator of the LT1054 runs at a nominal

frequency of 25kHz. The oscillator pin can be used to ad-

just the switching frequency or to externally synchronize

the LT1054.

■

Negative Voltage Doubler

Positive Voltage Doubler

■

L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks

and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

The LT1054 is pin compatible with previous converters

such the LTC1044/ICL7660.

BLOCK DIAGRAM

REF

LT1054/LT1054 Voltage Loss

2.5V

3.5V ≤ V ≤ 15V (LT1054)

REFERENCE

LT1054L

3.5V ≤ V ≤ 7V (LT1054L)

DRIVE

CAP

= C

= 100µF

OUT

INDICATES GUARANTEED

TEST POINT

–

LT1054

FEEDBACK/

SHUTDOWN

OSC

CAP

= 125°C

= 25°C

= –55°C

OSC

DRIVE

GND

*EXTERNAL CAPACITORS

100

125

OUT

OUTPUT CURRENT (mA)

–V

OUT

1054 TA01•

LT1054 • BD

1954lfg

12 3 4 5 6 7...16

中文翻译

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与LT1054ISW-PBF相关器件

型号	品牌	获取价格	描述	数据表
LT1054ISW-TRPBF	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator
LT1054L	Linear Systems	获取价格	High Voltage, Low Quiescent Current Inverting Charge Pump
LT1054L	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator
LT1054L_15	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator
LT1054LCS8	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator
LT1054LCS8#PBF	Linear	获取价格	LT1054 - Switched-Capacitor Voltage Converter with Regulator; Package: SO; Pins: 8; Temper
LT1054LCS8#TR	Linear	获取价格	LT1054 - Switched-Capacitor Voltage Converter with Regulator; Package: SO; Pins: 8; Temper
LT1054LCS8#TRPBF	Linear	获取价格	LT1054 - Switched-Capacitor Voltage Converter with Regulator; Package: SO; Pins: 8; Temper
LT1054LCS-PBF	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator
LT1054LCS-TRPBF	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator

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