Diodes Incorporated AP7167-SPG-13

Overview

AP7167-SPG-13 from Diodes Incorporated is a 1.2A adjustable-output ultra-low dropout linear regulator in SOP-8L-EP package, featuring Power-OK (POK) open-drain output, 125µA typical quiescent current, and 230mV dropout at 500mA - designed for precision power sequencing in portable audio/video systems, FPGA I/O rails, and battery-powered devices.

For engineers reviewing the AP7167-SPG-13 datasheet, AP7167-SPG-13 pinout, AP7167-SPG-13 application, or AP7167-SPG-13 equivalent, key selection criteria include POK threshold accuracy (±5% of VREF), thermal shutdown hysteresis (25°C), adjustable output range (0.8V–5.0V), and stability with ≥4.7µF ceramic output capacitance without ESR requirements.

Technical Context

The AP7167 integrates a PMOS pass element, band-gap reference (0.8V), error amplifier, and current-limit/thermal-shutdown circuitry. Its POK output monitors regulated voltage against 92% VREF rising threshold with 4% hysteresis and 160µs deglitch timing.

Enable logic operates with VIH = 1.4V min and VIL = 0.4V max; EN pin must be driven to ensure clean turn-on/turn-off. The device maintains ±3% total output voltage accuracy across line, load, and temperature (-40°C to +85°C ambient).

Key Specifications

Pinout & Package

AP7167-SPG-13 uses the SOP-8L-EP package with exposed thermal pad (pin 5 = GND). All pins are electrically defined per Diodes DS31252 Rev. 7-2; NC pins (4,7) must remain unconnected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar adjustable LDO with POK applications.

Compared with XC6216D122MR-G and RT9013-12GB, AP7167-SPG-13 uniquely combines 1.2A adjustability, POK monitoring, and thermal hysteresis - making it the only option among the three suitable for FPGA I/O and multi-rail sequenced systems.

Availability

AP7167-SPG-13 is available at Aetrix Electronics and suitable for laptop USB-C PD auxiliary rails, smartphone baseband power, and Bluetooth headset core supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AP7167-SPG-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial and consumer markets.

The AP7167 belongs to Diodes' precision LDO family targeting portable and battery-powered applications where low dropout, low IQ, and accurate power sequencing are critical design requirements.

FAQ

What is the minimum output capacitor required for stability?

The AP7167-SPG-13 is stable with any ceramic, tantalum, or electrolytic output capacitor ≥4.7µF - no ESR minimum or maximum is specified. For optimal transient response in FPGA I/O applications, a 10µF X7R ceramic placed within 2mm of OUT/GND pins is recommended per Diodes DS31252 Section 9.

Can the POK pin drive a microcontroller interrupt directly?

Yes - the POK pin is an open-drain output rated for 4mA sink current. It can directly assert a low-active interrupt on a 3.3V or 5V microcontroller GPIO when pulled up with a 10kΩ resistor; its 160µs deglitch filter prevents false triggers from brief output transients during startup.

How does thermal shutdown behave under sustained overload?

When junction temperature reaches 155°C, the AP7167 disables the pass element and holds output off until temperature drops to ~130°C due to 25°C hysteresis. Under continuous overload, this causes controlled on/off cycling - limiting average power dissipation and preventing permanent damage without external thermal management.

Is the EN pin compatible with 1.8V logic controllers?

No - the EN pin requires VIH ≥1.4V to guarantee turn-on, but 1.8V logic may not provide sufficient margin across voltage tolerance and PCB trace drop. For 1.8V systems, use a level translator or tie EN to IN via a 100kΩ resistor to ensure reliable activation above the 1.4V threshold.