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LTC3312SAJV#WPBF

Name: LTC3312SAJV#WPBF
Rating: 4.7 (12 reviews)

DUAL 5V, 6A SYNCHRONOUS STEP DOW

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規格

Series	LTC®3312SA
Part Status	Discontinued at DigiKey
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	2
Voltage - Input (Min)	2.25V
Voltage - Input (Max)	5.5V
Voltage - Output (Min/Fixed)	0.5V
Voltage - Output (Max)	5.5V
Current - Output	6A, 6A
Frequency - Switching	2MHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package	22-TFQFN Exposed Pad
Supplier Device Package	22-LQFN (4x3)
Packaging	Tray
Grade	Automotive
Qualification	AEC-Q100

概述

Description

The LTC3312SAJV#WPBF is a dual switching regulator IC from Linear Technology (now Analog Devices). It integrates two power-switching regulators in a single package to generate two clean outputs from one input, suitable for multi-rail power management in portable and automotive applications.
Key points:
- Dual synchronous regulators with fixed-frequency operation
- Wide input range with adjustable outputs via external feedback networks
- High efficiency, fast transient response, and low quiescent current
- Protection features: overcurrent, overtemperature, undervoltage, short-circuit; soft-start; enable control
- Remote sense options and layout-friendly for low-noise rails
- Packaging: SAJV is the device/package code; WPBF indicates RoHS-compliant, lead-free, reel packaging
Typical use: two-regulator power rails from a single source in handheld, automotive, or telecom equipment.
Note: For exact pinout, voltage ranges, inductor values, and application circuits, consult the LTC3312SAJV#WPBF datasheet from Analog Devices.

Features

Key features of LTC3312SAJV#WPBF (concise):
- Dual synchronous buck-boost regulator with integrated high/low-side FETs.
- Wide input range suitable for battery and USB applications; can regulate output above or below input.
- Output is adjustable via external feedback network.
- High efficiency from synchronous rectification; no external Schottky diodes required.
- Substantial load current capability for portable apps (high-current regulator).
- Protection: undervoltage lockout, overvoltage protection, current limit, and thermal shutdown.
- Flexible control: PWM, PFM modes (low-load efficiency), with soft-start.
- Enable input and Power-Good status output.
- Small 8-pin package in WPBF RoHS-compliant packaging for compact designs.

Package

QFN (Quad Flat No-Lead) package, 28 pins.

Pinout

- Pin count: 28 pins (LTC3312SAJV#WPBF in a 28‑lead QFN package, WPBF).
- Function: Dual high‑efficiency switching DC‑DC regulator (two channels) with integrated MOSFETs for generating regulated rails.

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI). The LTC3312SAJV#WPBF was originally from Linear Technology, which ADI acquired in 2017.
What kind of company: ADI is a multinational semiconductor company that designs and manufactures analog, mixed-signal, and RF integrated circuits.

Application

Typical applications for the LTC3312SAJV#WPBF include:
- Point-of-load regulation for CPUs/GPUs/FPGA cores
- Multi-rail power supplies in servers, networking and telecom equipment
- Automotive and industrial DC–DC conversion
- Battery-powered/mobile devices requiring high efficiency and compact size
- Medical devices and sensors
- Any application needing a dual, high-efficiency switching regulator with tight regulation