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LTC1754 - Micropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23

Datasheet

Documentation

Features

Ultralow Power: I_IN = 13µA
Regulated Output Voltage: 3.3V ±4%, 5V ±4%
5V Output Current: 50mA (V_IN >/= 3.0V)
3.3V Output Current: 40mA (V_IN >/=2.5V)
No Inductors Needed
Very Low Shutdown Current: <1µA
Shutdown Disconnects Load from V_IN
Internal Oscillator: 600kHz
Short-Circuit and Overtemperature Protected
Ultrasmall Application Circuit: (0.052 Inch²)
6-Pin SOT-23 Package

Typical Application

Description

The LTC1754 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_IN 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 inch². The LTC1754 operates as a Burst Mode switched capacitor 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.

Packaging

SOT-23

Order Info

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)^*
LTC1754ES6-3.3#PBF	SOT	6	E	$1.76
LTC1754ES6-3.3#TRMPBF	SOT	6	E	$1.76	$1.52
LTC1754ES6-3.3#TRPBF	SOT	6	E	$1.76	$1.50
LTC1754ES6-5#PBF	SOT	6	E	$1.76
LTC1754ES6-5#TRMPBF	SOT	6	E	$1.76	$1.52
LTC1754ES6-5#TRPBF	SOT	6	E	$1.76	$1.50
LTC1754ES6-3.3	SOT	6	E	$3.52
LTC1754ES6-3.3#TR	SOT	6	E	$3.52	$3.00
LTC1754ES6-5	SOT	6	E	$3.52
LTC1754ES6-5#TR	SOT	6	E	$3.52	$3.00
LTC1754ES6-3.3#TRM	SOT	6	E	$3.52	$3.04
LTC1754ES6-5#TRM	SOT	6	E	$3.52	$3.04

^* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.