Overview

Features and Benefits

  • Input Voltage Range: 0.9V to 1.8V
  • 0.9V Guaranteed Start-Up Voltage
  • Regulated Output Voltage: 3.3V ±4%
  • Output Current: 10mA (VIN ≥ 1V)
  • No Inductors
  • Shutdown Disconnects Load from VIN
  • Low Operating Current: 40µA
  • Low Shutdown Current: 5µA
  • Short-Circuit and Overtemperature Protected
  • Application Circuit Fits in <0.125in2 PCB Area
  • Available in 8-Pin MSOP and SO Packages

Product Details

The LTC1502-3.3 is a quadrupler charge pump DC/DC converter that produces a regulated 3.3V output from a single alkaline cell input. It requires only five small external capacitors—no inductors are required. Low supply current (40µA typical, 5µA in shutdown) and minimal external components make the LTC1502-3.3 ideal for space and power conscious single-cell applications. The total printed circuit board area of the circuit shown below is less than 0.125in2.

Forcing the C1/SHDN pin through an external resistive pull-down puts the part into shutdown mode. During shutdown, the internal oscillator is stopped and the load is disconnected from VIN. An internal pull-up current on the C1/SHDN pin forces the part back into normal operation once the pull-down resistance is removed.

The LTC1502-3.3 is short-circuit protected and survives an indefinite VOUT short to ground. The LTC1502-3.3 is available in 8-pin MSOP and SO packages.

Applications

  • Pagers
  • Battery Backup Supplies
  • Portable Electronic Equipment
  • Handheld Medical Instruments
  • Glucose Meters

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

LTC1502-3
LTC1502-3.3

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Discussions

LTC1502-3.3 Discussions

RE: AD7366 Supply Issues
4 week(s) ago in Precision ADCs
ARAD Supported Parts as of 2020 January 8_0
5 week(s) ago in Power By Linear
RE: ADMV1014 Vdet VS. Vctrl
8 week(s) ago in RF and Microwave
LTC1502-3.3 Didn't find what you were looking for? Ask the Analog community »

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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 Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Price Table Help

 

Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.