Datasheet > LT1054_15

LT1054_15

更新时间： 2024-10-02 01:14:55

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LT1054 Switched-Capacitor Voltage Converters With Regulators

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LT1054

SLVS033G –FEBRUARY 1990–REVISED JULY 2015

LT1054 Switched-Capacitor Voltage Converters With Regulators

1 Features

3 Description

The LT1054 device is a bipolar, switched-capacitor

voltage converter with regulator. It provides higher

output current and significantly lower voltage losses

than previously available converters. An adaptive-

switch drive scheme optimizes efficiency over a wide

range of output currents.

•

Output Current, 100 mA

Low Loss, 1.1 V at 100 mA

Operating Range, 3.5 V to 15 V

Reference and Error Amplifier for Regulation

External Shutdown

Total voltage drop at 100-mA output current typically

is 1.1 V. This applies to the full supply-voltage range

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

mA.

External Oscillator Synchronization

Devices Can Be Paralleled

Pin-to-Pin Compatible With the LTC1044/7660

The LT1054 also provides regulation, a feature

previously not available in switched-capacitor voltage

converters. By adding an external resistive divider, a

regulated output can be obtained. This output is

regulated against changes in both input voltage and

output current. The LT1054 can also shut down by

grounding the feedback terminal. Supply current in

shutdown typically is 100 μA.

2 Applications

•

Industrial Communications (RS232)

Data Acquisition Supply

Voltage Inverters

Voltage Regulators

Negative Voltage Doublers

Positive Voltage Doublers

The internal oscillator of the LT1054 runs at a

nominal frequency of 25 kHz. The oscillator terminal

can be used to adjust the switching frequency or to

externally synchronize the LT1054.

The LT1054C is characterized for operation over a

free-air temperature range of 0°C to 70°C. The

LT1054I is characterized for operation over a free-air

temperature range of −40°C to 85°C.

Device Information⁽¹⁾

PART NUMBER

LT1054

PACKAGE

PDIP (8)

SOIC (16)

BODY SIZE (NOM)

9.50 mm × 6.35 mm

10.30 mm × 10.30 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Basic Voltage Inverter

FB/SD

CAP+

GND

2 μF

OSC

LT1054

REF

10 μF

−V

OUT

CAP−

OUT

100 μF

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...33

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与LT1054_15相关器件

型号	品牌	获取价格	描述	数据表
LT1054C	TI	获取价格	SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
LT1054CDW	TI	获取价格	SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
LT1054CDWE4	TI	获取价格	SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
LT1054CDWG4	TI	获取价格	LT1054 Switched-Capacitor Voltage Converters With Regulators
LT1054CDWR	TI	获取价格	SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
LT1054CDWRE4	TI	获取价格	SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
LT1054CDWRG4	TI	获取价格	LT1054 Switched-Capacitor Voltage Converters With Regulators
LT1054CH	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator
LT1054CJ8	TI	获取价格	IC SWITCHED CAPACITOR REGULATOR, 25 kHz SWITCHING FREQ-MAX, CDIP8, 0.300 INCH, HERMETIC SE
LT1054CJ8	Linear	获取价格	Switched-Capacitor Voltage Converter with Regulator

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