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LTC1439CG The LTC1439CG is a dual, synchronous step-down switching regulator controller from Linear Technology. It operates with an input voltage range of 3.5V to 36V and supports frequencies up to 400kHz.
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LTC1439CG

Available from 1 distributors
Mfr Name: LT
LT
The LTC1439CG is a dual, synchronous step-down switching regulator controller from Linear Technology. It operates with an input voltage range of 3.5V to 36V and supports frequencies up to 400kHz.
✓ Total Stock: 2,596 pcs

LTC1439CG Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
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2,596 pcs
On Request
2596 pcs On Request 1 On Request On Request 00+ On Request On Request
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LTC1439CG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Tape & Reel
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LTC1439CG Description

Short technical summary and product information.

The LTC1439CG from Linear Technology is a dual, synchronous step-down switching regulator controller designed to drive external N-channel power MOSFETs. It features a phase-lockable fixed frequency architecture and an Adaptive Power output stage that maintains high efficiencies at low output currents by reducing switching losses.

 

Key electrical specifications include a wide input supply range of 3.5V to 36V and a programmable fixed switching frequency up to 400kHz. The device offers very low dropout operation with a 99% maximum duty cycle. An auxiliary 0.5A linear regulator is included for VPP generation or low noise audio supply. It also incorporates a power-on reset timer and a low-battery detector.

 

This controller is available in a 36-lead SSOP package. It is suitable for applications such as notebook and palmtop computers, PDAs, portable instruments, battery-operated devices, and DC power distribution systems.

LTC1439CG Quick Information

Product Type: DC-DC Switching Controller
Canonical Name: LTC1439CG Dual Synchronous Step-Down Switching Regulator Controller
Subcategory: Power Management ICs

LTC1439CG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LTC1439CG Features

  • Dual synchronous step-down switching regulator controller.
  • Wide 3.5V to 36V input voltage range.
  • Programmable switching frequency up to 400kHz.
  • 99% maximum duty cycle for low dropout.
  • Auxiliary 0.5A linear regulator included.

LTC1439CG Applications

  • Suitable for notebook computers.
  • Ideal for portable instruments.
  • Used in battery-operated devices.
  • Applicable to DC power systems.

LTC1439CG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LTC1439CG?

3.5V to 36V.

What is the package type of the LTC1439CG?

36-SSOP

What is the operating temperature range of the LTC1439CG?

0°C to 70°C

What is the maximum switching frequency of the LTC1439CG?

Up to 400kHz

What is the rating of the integrated linear regulator in the LTC1439CG?

0.5A

What is the shutdown current of the LTC1439CG?

Less than 30µA

What is the maximum duty cycle of the LTC1439CG?

99%

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