Analog Devices Inc. LTC3672BEDC-2#TRMPBF

Overview

LTC3672BEDC-2#TRMPBF from Analog Devices is a monolithic fixed-output triple power supply integrating a 400mA synchronous buck regulator with two 150mA low-dropout linear regulators. The device is designed to generate a 1.2V core rail, a 2.8V LDO rail, and a 1.8V LDO rail from a single 2.9V to 5.5V input in compact battery-powered electronics.

As part of the LTC3672B-2 product family, LTC3672BEDC-2#TRMPBF combines fixed rail voltages, 2.25MHz constant-frequency buck operation, current-mode control, internal soft-start for each output, single-pin enable control, and a tiny 2mm x 2mm DFN package. For engineers reviewing the LTC3672BEDC-2#TRMPBF datasheet, LTC3672BEDC-2#TRMPBF pinout, LTC3672BEDC-2#TRMPBF application, or LTC3672BEDC-2#TRMPBF equivalent, this device is widely used in handheld products, single-cell Li-ion systems, low-voltage ASIC supplies, RF chipsets, portable media devices, and compact multi-voltage embedded platforms.

Technical Context

In portable multi-voltage systems, LTC3672BEDC-2#TRMPBF operates as a fixed-output PMIC that powers three rails from one input supply. The synchronous buck regulator provides the 1.2V rail at up to 400mA, while the two LDOs generate 2.8V and 1.8V rails at up to 150mA each.

The 2.9V to 5.5V input range fits single-cell lithium-ion, lithium-polymer, 3.3V, and 5V rail-powered designs. Its 2.25MHz constant-frequency operation allows a small inductor, while internal compensation and internal soft-start reduce external components and simplify startup behavior.

LTC3672BEDC-2#TRMPBF is commonly used when a board needs fixed 1.2V, 2.8V, and 1.8V rails in a very small DFN footprint with one enable pin controlling all outputs for simple system power sequencing.

Key Specifications

Pinout & Package

The LTC3672BEDC-2#TRMPBF pinout includes the main input supply, buck switch node, buck output, two LDO outputs, enable control, and ground connections in an 8-lead DFN package.

For PCB design, the single buck inductor, input capacitor, and buck output capacitor should be placed close to the IC, while the LDO output capacitors should be close to their pins to maintain stability and reduce rail noise.

Key Features

• Triple-output architecture provides one buck rail and two LDO rails.
• Fixed 1.2V, 2.8V, and 1.8V outputs reduce resistor-setting components.
• 2.25MHz switching supports a small inductor and compact layout.
• Internal soft-start on each output supports controlled startup.
• Single enable pin simplifies system shutdown and rail control.
• 2mm x 2mm DFN package supports very small portable products.

Applications

Equivalent & Alternatives

When evaluating a LTC3672BEDC-2#TRMPBF equivalent, engineers should compare fixed output voltages, buck current, LDO current, package size, enable behavior, switching frequency, and external component count.

Compared with LTC3672BEDC-1#PBF, LTC3672BEDC-2#TRMPBF provides a different fixed rail assignment centered on a 1.2V buck output. LTC3672BEDC-2#TRMPBF vs TPS650061RUKT selection depends on fixed-voltage requirements, buck output current, LDO rail current, package size, and whether the system needs the TI supervisor feature set.

Quality

LTC3672BEDC-2#TRMPBF should be sourced as original Analog Devices components through traceable supply channels. Quality checks may include DFN package inspection, top-mark validation, solderability testing, and verification of the 1.2V, 2.8V, and 1.8V output rails.

Production validation should include buck efficiency, LDO load regulation, internal soft-start timing, enable behavior, thermal performance, and load transient response on all three outputs.

Availability

LTC3672BEDC-2#TRMPBF available at Aetrix Electronics and is suitable for handheld products, single-cell battery systems, ASIC power, RF chipsets, portable media devices, and compact embedded multi-rail platforms.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming fixed rail voltages, package, tape-and-reel packing, lifecycle status, load-current budget, and sourcing continuity helps reduce procurement risk.

Manufacturer

Analog Devices is a global semiconductor manufacturer specializing in analog ICs, power management, mixed-signal products, data converters, RF solutions, sensors, and embedded signal-chain technologies for industrial, communication, automotive, healthcare, and consumer applications.

The LTC3672B-2 product family is an Analog Devices fixed-output triple-supply PMIC series integrating a synchronous buck regulator and two LDOs for tiny battery-powered and low-voltage embedded systems.

FAQ

What is LTC3672BEDC-2#TRMPBF used for?

LTC3672BEDC-2#TRMPBF is used for handheld products, single-cell Li-ion devices, ASIC supplies, RF chipsets, portable media products, and compact multi-voltage embedded systems.

Where can I find the LTC3672BEDC-2#TRMPBF datasheet download?

The LTC3672BEDC-2#TRMPBF datasheet is available from Analog Devices and includes fixed output voltages, electrical ratings, package details, pin functions, and application circuits.

What output voltages does LTC3672BEDC-2#TRMPBF provide?

It provides a fixed 1.2V buck output, a fixed 2.8V LDO1 output, and a fixed 1.8V LDO2 output.

What should be considered in LTC3672BEDC-2#TRMPBF pinout design?

Designers should place the buck inductor and capacitors close to the IC, keep the switch node compact, and place LDO output capacitors close to the LDO pins.

What are common LTC3672BEDC-2#TRMPBF equivalent solutions?

Common candidates include LTC3672BEDC-1#PBF and TPS650061RUKT depending on fixed voltage set, rail current, package, and supervisor requirements.