LT1054CS8 datasheet(1/16 Pages) LINER

tên linh kiện	LT1054CS8

Giải thích chi tiết về linh kiện	Switched-Capacitor Voltage Converter with Regulator

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1

LT1054/LT1054L

1054lfe

DESCRIPTIO

FEATURES

APPLICATIO S

BLOCK DIAGRA

Switched-Capacitor Voltage

Converter with Regulator

s

Available in Space Saving SO-8 Package

s

Output Current: 100mA (LT1054)

125mA (LT1054L)

s

Reference and Error Amplifier for Regulation

s

Low Loss: 1.1V at 100mA

s

Operating Range:3.5V to 15V (LT1054)

3.5V to 7V (LT1054L)

s

External Shutdown

s

External Oscillator Synchronization

s

Can Be Paralleled

s

Pin Compatible with the LTC

®1044/LTC7660

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.

The LT1054 also provides regulation, a feature not previ-

ously available in switched-capacitor voltage converters.

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 100

µA.

The internal oscillator of the LT1054 runs at a nominal

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

the switching frequency or to externally synchronize the

LT1054.

The LT1054 is pin compatible with previous converters

such the LTC1044/LTC7660.

OUTPUT CURRENT (mA)

0

1

2

50

1054 TA01•

0

25

75

100

125

TJ = 125°C

TJ = 25°C

TJ = –55°C

LT1054

LT1054L

3.5V

≤ VIN ≤ 15V (LT1054)

3.5V

≤ VIN ≤ 7V (LT1054L)

CIN = COUT = 100µF

INDICATES GUARANTEED

TEST POINT

, LTC and LT are registered trademarks of Linear Technology Corporation.

LT1054/LT1054L Voltage Loss

REFERENCE

OSC

DRIVE

OSC

CAP–

GND

CAP +

FEEDBACK/

SHUTDOWN

–

+

R

*EXTERNAL CAPACITORS

2.5V

6

1

4

3

–VOUT

LT1054 • BD

5

2

8

7

Q

VREF

CIN*

VIN

COUT*

+

s

Voltage Inverter

s

Voltage Regulator

s

Negative Voltage Doubler

s

Positive Voltage Doubler

Số phần tương tự - LT1054CS8

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LT1054CS8	334Kb / 16P	Switched-Capacitor Voltage Converter with Regulator
	LT1054CS8-PBF	274Kb / 16P	Switched-Capacitor Voltage Converter with Regulator
	LT1054CS8-TRPBF	274Kb / 16P	Switched-Capacitor Voltage Converter with Regulator

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Mô tả tương tự - LT1054CS8

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LM2664	222Kb / 9P	Switched Capacitor Voltage Converter
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TOKO, Inc	TK65018	33Kb / 5P	CMOS SWITCHED CAPACITOR VOLTAGE CONVERTER WITH REGULATOR
TOKO, Inc	TK75018	91Kb / 8P	SWITCHED CAPACITOR VOLTAGE CONVERTER WITH REGULATOR
Linear Technology	LT1054	334Kb / 16P	Switched-Capacitor Voltage Converter with Regulator
Analog Intergrations Co...	AIC7660	317Kb / 11P	Switched-Capacitor Voltage Converter
Linear Technology	LT1054	268Kb / 16P	Switched-Capacitor Voltage Converter with Regulator
	LT1054IS8PBF	274Kb / 16P	Switched-Capacitor Voltage Converter with Regulator
	LT1054	294Kb / 16P	Switched-Capacitor Voltage Converter with Regulator
	LT1054L	294Kb / 16P	Switched-Capacitor Voltage Converter with Regulator

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