Microchip Technology TC1303B-DG0EMF

Overview

TC1303B-DG0EMF from Microchip Technology is a dual-output power-management IC combining a synchronous step-down regulator with a low-dropout linear regulator. The device is intended for portable and embedded systems that need one efficient switching rail together with a cleaner auxiliary rail from a compact Microchip regulator package.

As part of the Microchip TC1303 family, TC1303B-DG0EMF provides buck conversion, LDO regulation, supervisory power-good or reset-style behavior depending on option, and suffix-defined output combinations for system rails. For engineers reviewing the TC1303B-DG0EMF datasheet, TC1303B-DG0EMF pinout, TC1303B-DG0EMF application, or TC1303B-DG0EMF equivalent, this device is widely used in battery-powered products, handheld instruments, portable consumer electronics, embedded controllers, sensor modules, and compact mixed-signal power systems.

Technical Context

In portable embedded systems, TC1303B-DG0EMF operates as a two-rail regulator: the synchronous buck channel supplies the efficient main rail, while the LDO channel provides a low-noise output for analog, sensor, RF, or auxiliary logic circuitry.

The DG0EMF identifies a different voltage/supervisory configuration within the TC1303 family. suffix information matters because TC1303 orderable parts use encoded output-voltage and supervisory options. Those options determine whether the device fits a processor core rail, I/O rail, memory rail, or low-noise peripheral supply.

TC1303B-DG0EMF is commonly used where the system needs a compact buck-plus-LDO architecture with fewer external components than separate switching and linear regulator ICs.

Key Specifications

Pinout & Package

The TC1303B-DG0EMF pinout includes input supply, buck switching/output pins, LDO output, enable/control functions, supervisory output, and ground pins.

For PCB design, the buck inductor and input/output capacitors should be close to the IC, while the LDO output capacitor and feedback or sense paths should be routed for low noise and stable regulation.

Key Features

• Synchronous buck plus LDO architecture saves PCB area.
• LDO output supports cleaner auxiliary rails.
• Suffix-defined output options support different system voltage sets.
• Supervisory output helps processor reset or rail-good control.
• Compact package supports portable designs.
• Integrated dual-output regulation reduces external IC count.

Applications

Equivalent & Alternatives

When evaluating a TC1303B-DG0EMF equivalent, engineers should compare buck output voltage, LDO output voltage, current ratings, supervisory output behavior, package, and external component requirements.

Compared with TC1303B-DG0EMF, TC1303B-DG0EMF must be selected according to the exact encoded output and supervisory option. TC1303B-DG0EMF vs ADP2140 selection depends on rail count, output current, reset/power-good needs, package, and sourcing requirements.

Quality

TC1303B-DG0EMF should be sourced as original Microchip components through traceable supply channels. Quality checks may include package inspection, top-mark validation, solderability testing, and buck/LDO output verification.

Production validation should include startup sequencing, output accuracy, LDO stability, buck ripple, supervisory output timing, thermal behavior, and battery-load transients.

Availability

TC1303B-DG0EMF available at Aetrix Electronics and is suitable for portable, embedded, sensor, handheld, and compact mixed-signal products requiring dual-output power support.

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 suffix-coded output voltages, package, reset/power-good option, lead time, lifecycle status, and sourcing continuity helps improve procurement stability.

Manufacturer

Microchip Technology is a semiconductor manufacturer specializing in microcontrollers, analog ICs, mixed-signal devices, memory, timing, connectivity, and power-management products for embedded electronic systems.

The TC1303 product family is a Microchip dual-output regulator series combining synchronous buck conversion, LDO regulation, and supervisory options for compact portable and embedded systems.

FAQ

What is TC1303B-DG0EMF used for?

TC1303B-DG0EMF is used for portable, embedded, sensor, and handheld systems requiring one buck rail and one LDO rail.

Where can I find the TC1303B-DG0EMF datasheet download?

The TC1303B-DG0EMF datasheet is available from Microchip and includes suffix options, regulator operation, package data, and application information.

What should be considered in TC1303B-DG0EMF pinout design?

Designers should keep the buck switching loop compact, place LDO output capacitors close, and confirm the suffix-coded voltage and supervisory option.

Does TC1303B-DG0EMF include both a buck and an LDO?

Yes. The TC1303 family combines a synchronous buck regulator and an LDO regulator.

What are common TC1303B-DG0EMF equivalent solutions?

Common candidates include TC1303B-DG0EMF and ADP2140 depending on output-voltage option, supervisory behavior, package, and rail count.