Microchip Technology TC1304-VP0EMFTR

Overview

TC1304-VP0EMFTR from Microchip Technology is a dual-output power management IC integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout linear regulator (LDO), with sequenced startup/shutdown, 300 ms power-good delay, and operation from 2.7V to 5.5V input. It delivers 1.8V/500 mA and 3.3V/300 mA outputs in a 10-pin 3×3 mm DFN package, targeting portable medical instruments and USB-powered devices requiring tight voltage sequencing and ultra-low quiescent current (70.1 µA typical).

For engineers reviewing the TC1304-VP0EMFTR datasheet, TC1304-VP0EMFTR pinout, TC1304-VP0EMFTR application, or TC1304-VP0EMFTR equivalent, key selection criteria include verified output sequencing behavior, confirmed open-drain PG timing (262 ms active timeout), measured LDO dropout of 137 mV @ 200 mA, buck efficiency >90% at 2.0 MHz, and thermal shutdown at 165°C - all validated for -40°C to +125°C junction operation.

Technical Context

The TC1304-VP0EMFTR implements independent control logic for sequenced power-up: SHDN assertion enables VOUT2 first, followed by VOUT1 after internal timing, while shutdown reverses the order. Its buck stage uses fixed-frequency 2.0 MHz PWM under heavy load and auto-transitions to PFM mode at light loads to maintain 70.1 µA total IQ.

The LDO employs internal compensation and requires only a single 1 µF ceramic output capacitor. Power-good monitoring covers both outputs simultaneously with 94% threshold hysteresis and 300 ms delay, supporting processor reset functions in battery-powered systems.

Key Specifications

Pinout & Package

TC1304-VP0EMFTR is housed in a 10-pin 3×3 mm DFN package with exposed thermal pad (EP), optimized for high-power-density portable designs. Pin 11 (EP) must be soldered to AGND for thermal performance and electrical stability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-output PMIC applications.

Compared with TPS65023BRSBR and RT8059ZSP, TC1304-VP0EMFTR uniquely integrates sequenced dual-rail regulation with LDO noise filtering in a compact 10-pin DFN, offering optimal balance of integration, thermal performance (θJA = 41°C/W), and sequencing assurance for portable medical and USB-C edge devices.

Availability

TC1304-VP0EMFTR is available at Aetrix Electronics and suitable for portable medical monitors, USB-C powered peripherals, and handheld diagnostic tools requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TC1304-VP0EMFTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, and power management solutions for industrial, automotive, and consumer markets.

The TC1303/TC1304 product line was designed to deliver highly integrated, sequenced dual-rail power solutions for space-constrained portable electronics where battery life, thermal performance, and reliable startup sequencing are critical.

FAQ

What output voltages does the TC1304-VP0EMFTR provide?

The TC1304-VP0EMFTR provides fixed 1.8V on VOUT1 (buck) and fixed 3.3V on VOUT2 (LDO), as indicated by the "VP0" suffix in the part number. These values are factory-trimmed and require no external feedback resistors. Both outputs are internally compensated and specified over -40°C to +125°C junction temperature.

How does the power-good (PG) function operate on the TC1304-VP0EMFTR?

The TC1304-VP0EMFTR's PG pin is an open-drain output that asserts low when both VOUT1 and VOUT2 are within 94% of their nominal values. It features a 262 ms active timeout period and a 300 ms delay from regulation entry to PG assertion, enabling reliable processor reset sequencing. PG remains low if either rail drops below 89% of nominal.

Does the TC1304-VP0EMFTR support independent enable control for each regulator?

No - unlike TC1303 variants, the TC1304-VP0EMFTR uses a single SHDN pin (Pin 1) to initiate sequenced startup (VOUT2 first, then VOUT1) and sequenced shutdown (VOUT1 first, then VOUT2). Independent control is not supported; this sequencing behavior is hardwired and cannot be disabled or reconfigured.

What is the thermal performance of the TC1304-VP0EMFTR in its DFN package?

The TC1304-VP0EMFTR in the 10-pin 3×3 mm DFN package achieves a typical junction-to-ambient thermal resistance (θJA) of 41°C/W on a 4-layer PCB with internal ground plane and two thermal vias under the exposed pad (Pin 11). This enables continuous 500 mA buck + 300 mA LDO operation at ambient temperatures up to +85°C without forced airflow.

Can the TC1304-VP0EMFTR operate from a single 3.7V Li-ion cell throughout its discharge curve?

Yes - the TC1304-VP0EMFTR operates from 2.7V to 5.5V input. With 137 mV LDO dropout at 200 mA, it maintains regulated 3.3V output down to 3.44V input, covering >90% of a typical Li-ion discharge curve (4.2V–3.4V). The buck stage sustains 1.8V output down to 2.7V input, ensuring full functionality until cell depletion.