Diodes Incorporated AP7363-10D-13

Overview

AP7363-10D-13 from Diodes Incorporated is a 1.5A ultra-low dropout linear regulator with fixed 1.0V output, 190mV dropout at full load, 0.5mA quiescent current, and thermal shutdown protection. It operates across 2.2V–5.5V input and delivers stable power to FPGA I/O rails, ASIC core supplies in routers and STBs, and post-regulation stages following SMPS.

For engineers reviewing the AP7363-10D-13 datasheet, AP7363-10D-13 pinout, AP7363-10D-13 application, or AP7363-10D-13 equivalent, key selection criteria include dropout voltage at 1.5A, thermal resistance of TO252 package (87.8°C/W), shutdown mode current (25nA), and compatibility with 10µF ceramic output capacitors without ESR constraints.

Technical Context

The AP7363-10D-13 integrates an internal 0.605V reference, current-limit circuitry, and thermal shutdown triggered at 170°C with 10°C hysteresis. Its internal compensation ensures stability with any capacitor type - including low-ESR ceramics - eliminating external compensation requirements.

As a fixed-output LDO in TO252-3L package, it uses the exposed tab as thermal path and electrical ground connection, with pin 1 (IN), pin 2 (GND), and pin 3 (OUT) defining its minimal three-terminal interface. No ADJ/NC pin is present in fixed versions.

Key Specifications

Pinout & Package

AP7363-10D-13 is housed in TO252-3L (also known as DPAK), featuring an exposed thermal pad electrically connected to GND. The package provides 87.8°C/W junction-to-ambient thermal resistance on standard 2"×2" FR-4 with 2oz copper.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-output LDO applications.

Compared with MCP1703T-1002E/MB and TLS850F0TES/V33, AP7363-10D-13 uniquely balances 1.5A delivery, 190mV dropout, and capacitor-agnostic stability - making it optimal for high-current, space-constrained industrial and networking applications where thermal robustness and noise performance are prioritized over system monitoring features.

Availability

AP7363-10D-13 is available at Aetrix Electronics and suitable for FPGA I/O regulation, ASIC core powering in routers, and SMPS post-regulation stages requiring stable component supply, long-lifecycle assurance, and TO252 thermal performance.

Supply support for AP7363-10D-13 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

Diodes Incorporated is a global semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the U.S., and ISO/TS 16949-certified manufacturing facilities.

The AP7363 belongs to Diodes' high-performance LDO family targeting power integrity in digital systems - engineered for ultra-low dropout, fast transient response, and capacitor flexibility in networking, computing, and consumer electronics.

FAQ

What is the maximum allowable input voltage for AP7363-10D-13?

The absolute maximum input voltage is +6.0V, but recommended operating range is 2.2V to 5.5V. Exceeding 5.5V risks exceeding thermal limits under load due to increased power dissipation (PD = (VIN − 1.0V) × IOUT), especially in TO252 without enhanced heatsinking.

Can AP7363-10D-13 operate without an output capacitor?

No - an output capacitor is mandatory for stability and transient response. The device is stable with ≥10µF ceramic capacitors of any ESR, but zero capacitance violates the internal compensation design and will cause oscillation or regulation failure.

Is the exposed thermal pad on the TO252 package electrically isolated?

No - the exposed pad (tab) is electrically connected to Pin 2 (GND). It must be soldered to a PCB copper area tied to system ground; using it solely as a thermal sink without electrical connection violates the internal die bonding structure and compromises reliability.

Does AP7363-10D-13 support enable/shutdown control?

No - AP7363-10D-13 has no enable pin. It operates continuously when input voltage is within specification. For controlled sequencing, an external MOSFET switch on the IN rail or selection of AP7363-10D-13's adjustable counterpart with EN functionality is required.