LTC3370IUH

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LTC3370IUH

IC REG BUCK ADJ 2A QD 32QFN

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規格

Package Tube
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 4
Voltage-Input(Min) 2.7V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 5.5V
Current-Output 2A
Frequency-Switching 2MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 32-WFQFN Exposed Pad

概述

Description

- LTC3370IUH is a Linear Technology (now Analog Devices) DC-DC converter controller.
- It’s designed for high efficiency buck/boost/buck-boost regulation (wide input range) used with an external inductor and MOSFETs.
- Key features typically include current-mode control, soft-start, enable/shutdown, programmable switching frequency, and protections (UVLO, overcurrent, thermal).
- Common applications: battery-powered and automotive power supplies, portable devices, USB-powered systems needing regulation over a wide Vin.
- IUH suffix denotes the package/temperature variant (packaging and industrial-temperature range). For exact pinout, numbers, and performance, consult the LTC3370 datasheet on Analog Devices’ website. If you can share your input/output ranges and topology, I can tailor a quick overview.

Features

Key features of LTC3370IUH (datasheet overview):
- Wide input range: suitable for automotive/industrial applications.
- Synchronous buck regulator with integrated high-side and low-side FETs.
- Interleaved 2-phase operation for high efficiency and reduced ripple.
- Programmable switching frequency (tens to hundreds of kHz range).
- Adjustable output: external feedback network; remote sense option.
- Soft-start and output voltage tracking; enable control.
- Current-mode control with cycle-by-cycle current limit.
- Protections: undervoltage/overvoltage lockout, overcurrent protection, thermal shutdown.
- Fault reporting and power-good signaling; latch/reset capability.
- Flexibility: multiple rails or tracking schemes from a single device.
- Packaging: LTCUH variant in industrial temperature range (IUH).
Note: Exact values (input range, output current per channel, adjustable voltage range, switching-frequency range) are in the datasheet. Refer to LTC3370IUH datasheet for precise specifications and pin functions.

Package

LTC3370IUH uses a 28-pin HTSSOP (TSSOP) package.

Manufacturer

Manufacturer: Linear Technology, now part of Analog Devices, Inc. Linear Technology was a semiconductor company that designed and manufactured analog and mixed-signal integrated circuits, including power-management ICs and data converters.

Application

Applications of LTC3370IUH include high-efficiency DC-DC power conversion for:
- Automotive and industrial power systems (wide input range, multi-rail outputs)
- Telecom and embedded electronics power supplies
- Battery-powered portable devices and wearables
- Energy harvesting and solar charging/regulation
In short, it’s used to generate multiple low-voltage rails from a wide input source with compact, efficient power management.

Equivalent

There are no guaranteed pin‑for‑pin drop‑in equivalents to the LTC3370IUH other than the same part or an official Analog Devices/Linear replacement. For functional substitutes, compare specs to other synchronous buck‑boost ICs (e.g., TI TPS630xx series, Maxim or ROHM similar parts) and confirm thermal, pinout and SPI/feature compatibility with the manufacturer. Contact Analog Devices for official cross‑reference.

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