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LTC3370IUH

Name: LTC3370IUH
Rating: 4.8 (15 reviews)

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IC REG BUCK ADJ 2A QD 32QFN

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제조업체 부품 #LTC3370IUH
데이터시트 LTC3370IUH DataSheet
패키지 WFQFN-32
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사양

속성	가치
Package / Case	Tube
Part Status	Obsolete
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	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
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount

개요

Description

The LTC3370IUH is Linear Technology’s (now Analog Devices) buck/boost DC-DC regulator in a small package. It is intended for portable, battery-powered systems where the input voltage can be higher or lower than the desired output, so it can operate in buck, boost, or buck-boost mode to maintain a stable output. External energy-storage components (inductor, capacitors) and a feedback network set the output voltage; the device includes protections such as overcurrent, thermal shutdown, and undervoltage protection, with an enable/shutdown control for power management. The IUH suffix denotes a specific package and temperature rating for this variant. For exact electrical specs (input/output ranges, current capability, efficiency, pinout) consult the LTC3370 datasheet and application notes.

Features

LTC3370IUH features:
- I2C-compatible interface for monitoring, control, and sequencing
- Three synchronous buck regulators (multi-rail) with independently programmable outputs
- High efficiency via synchronous rectification and fast transient response
- Wide input voltage range suitable for automotive/industrial applications
- Per-channel enable/disable, soft-start, and sequencing capabilities
- Protections: UVLO, overvoltage, overcurrent/short-circuit, and thermal shutdown
- Remote sense/feedback options for accurate regulation
- Status outputs (e.g., Power Good) for system monitoring
- Adjustable switching frequency for +/−demanding designs
- Compact package suitable for space-constrained designs

Pinout

- Pin count: 28 pins (LTC3370IUH package is a 28-pin device).
- Function: High-voltage, multi‑phase DC‑DC controller (buck/boost) used to regulate power rails (e.g., CPU VRMs); requires external MOSFETs and supports interleaved multi-phase operation.

Manufacturer

Analog Devices, Inc. (ADI). It is an American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The LTC prefix comes from Linear Technology, which ADI acquired in 2017.

Application

LTC3370IUH is a high-efficiency buck-boost DC-DC controller suitable for wide-input, multi-rail power supplies. Common applications include:
- Battery-powered portable electronics (phones, tablets, wearables)
- Automotive power management (wide Vin, multiple regulated rails)
- Telecom and industrial DC-DC power modules and PMICs
- High-performance compute rails (DSPs, FPGAs, GPUs) and ancillary supplies
- Solar/energy-harvesting and standby/battery-backup power systems
- Medical devices with battery-backed rails
It enables efficient conversion across broad input ranges with compact, multi-rail solutions.