LTC1754ES6-3.3#TR datasheet, PDF

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LTC1754ES6-3.3#TR: DescriptionCharge Pump STPUP 3.3V 40mA 6-Pin TSOT-23 T/R; File Size201KB，12 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC1754ES6-3.3#TR Overview

Charge Pump STPUP 3.3V 40mA 6-Pin TSOT-23 T/R

LTC1754ES6-3.3#TR Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Not Compliant
ECCN (US)	EAR99
Part Status	Unconfirmed
SVHC	Yes
SVHC Exceeds Threshold	Yes
Function	Step Up
Output Type	Fixed
Output Voltage (V)	3.3
Maximum Supply Current (mA)	0.03
Output Current (mA)	40
Switching Frequency (kHz)	600
Efficiency (%)	82(Typ)
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Supplier Temperature Grade	Extended
Packaging	Tape and Reel
Pin Count	6
Standard Package Name	SOT-23
Supplier Package	TSOT-23
Mounting	Surface Mount
Package Height	0.9(Max)
Package Length	2.9
Package Width	1.75(Max)
PCB changed	6
Lead Shape	Gull-wing

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LTC1754-3.3/LTC1754-5

Micropower, Regulated

3.3V/5V Charge Pump with

Shutdown in SOT-23

FEATURES

DESCRIPTIO

Ultralow Power: I

= 13

Regulated Output Voltage: 3.3V

4%, 5V

5V Output Current: 50mA (V

≥

3.0V)

3.3V Output Current: 40mA (V

≥

2.5V)

No Inductors Needed

Very Low Shutdown Current: <1µA

Shutdown Disconnects Load from V

Internal Oscillator: 600kHz

Short-Circuit and Overtemperature Protected

Ultrasmall Application Circuit: (0.052 Inch

)

6-Pin SOT-23 Package

The LTC

1754 is a micropower charge pump DC/DC

converter that produces a regulated output. The input

voltage range is 2V to 4.4V for 3.3V output and 2.7V to

5.5V for 5V output. Extremely low operating current and a

low external parts count (one flying capacitor and two

small bypass capacitors at V

and V

OUT

) make the LTC1754

ideally suited for small, battery-powered applications. The

total component area of the application circuit shown

below is only 0.052 inch

The LTC1754 operates as a Burst Mode

switched capaci-

tor voltage doubler to produce a regulated output. It has

thermal shutdown capability and can survive a continuous

short circuit from V

OUT

to GND.

The LTC1754 is available in a 6-pin SOT-23 package.

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

Burst Mode is a trademark of Linear Technology Corporation.

APPLICATIO S

SIM Interface Supplies for GSM Cellular Telephones

White LED Power Supplies

Li-Ion Battery Backup Supplies

Handheld Computers

Smart Card Readers

PCMCIA Local 5V Supplies

TYPICAL APPLICATIO

OUT

10µF

OUT

GND

–

1µF

10µF

OUTPUT VOLTAGE (V)

LTC1754-3.3

Output Voltage vs Supply Voltage

3.40

OUT

= 20mA

OUT

= 10µf

FLY

= 1µF

5.15

5.10

LTC1754-X

1754 TA01

OUTPUT VOLTAGE (V)

ON/OFF

SHDN C

3.35

= 85°C

3.30

= 25°C

= –40°C

3.25

Regulated 3.3V Output from 2V to 4.4V Input

OUT

= 3.3V

OUT

= 0mA TO 20mA, V

> 2.0V

OUT

= 0mA TO 40mA, V

> 2.5V

Regulated 5V Output from 2.7V to 5.5V Input

OUT

= 5V

OUT

= 0mA TO 25mA, V

> 2.7V

OUT

= 0mA TO 50mA, V

> 3.0V

3.20

2.0

2.5

3.5

4.0

3.0

SUPPLY VOLTAGE (V)

4.5

1754 TA02

LTC1754-5

Output Voltage vs Supply Voltage

OUT

= 25mA

OUT

= 10µF

FLY

= 1µF

5.05

5.00

4.95

4.90

4.85

= –40°C

= 25°C

= 85°C

2.5

3.0

3.5

4.0

4.5

SUPPLY VOLTAGE (V)

5.0

5.5

1574 TA03

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