Diodes Incorporated AP130-30RL-7

Overview

AP130-30RL-7 from Diodes Incorporated is a 300mA fixed-output 3.0V low-dropout linear regulator in SC59R package, featuring 400mV dropout at full load, ±2% output accuracy, and 50µA quiescent current. It integrates PMOS pass element with no base current draw, thermal shutdown, and fold-back short-circuit protection-designed for battery-powered wireless modules requiring stable low-noise 3.0V rail.

For engineers reviewing the AP130-30RL-7 datasheet, AP130-30RL-7 pinout, AP130-30RL-7 application, or AP130-30RL-7 equivalent, key selection criteria include dropout voltage under 300mA load, guaranteed 3.0V output tolerance across -40°C to +85°C ambient, SC59R pin compatibility with space-constrained PCB layouts, and thermal resistance (θ_JA = 250°C/W) for passive-cooled portable designs.

Technical Context

The AP130-30RL-7 employs a PMOS pass transistor architecture enabling ultra-low quiescent current (50µA typ.) independent of load, unlike NMOS-based LDOs. Its internal bandgap reference and error amplifier deliver tight line regulation (0.1–0.3%/V) and load regulation (30–40mV over 1–300mA), critical for maintaining 3.0V integrity during RF transmit bursts.

Protection circuitry includes thermal shutdown triggered at ~150°C junction temperature and current-limit fold-back that reduces short-circuit current to 150–300mA-preventing latch-up while sustaining safe power dissipation in SC59R's 250°C/W thermal environment without heatsinking.

Key Specifications

Pinout & Package

AP130-30RL-7 uses the SC59R package: 3-pin SOT-23 variant with GND–OUT–IN pin order (top view). This reversed pinout improves layout isolation between input and output traces in high-density PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700-3002E/TO and TPS73030DBVR, AP130-30RL-7 uniquely balances 300mA capability, 400mV dropout, and 50µA IQ-making it optimal for battery-powered devices operating across wide input ranges where both peak current and standby efficiency matter.

Availability

AP130-30RL-7 is available at Aetrix Electronics and suitable for battery-powered wireless sensors, USB peripherals, and industrial CAN nodes requiring stable component supply with consistent SC59R packaging and RoHS/green compliance.

Supply support for AP130-30RL-7 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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The AP130 series belongs to Diodes' precision LDO portfolio, engineered specifically for space-constrained, battery-sensitive applications demanding tight output tolerance, low dropout, and robust fault protection in compact packages like SC59R.

FAQ

What is the minimum input voltage required for AP130-30RL-7 to maintain regulated 3.0V output at 300mA?

The minimum input voltage is calculated as V_OUT + V_DROP = 3.0V + 0.4V = 3.4V. At 300mA load and 25°C, the typical dropout is 400mV; derating for temperature and process variation confirms 3.4V as the practical minimum to guarantee regulation across all conditions.

Can AP130-30RL-7 be used without an output capacitor?

No. The datasheet mandates a minimum 10µF ceramic capacitor from OUT to GND for stability. Omitting it causes oscillation and output voltage overshoot during load transients-verified by functional block diagram analysis showing direct dependence of error amplifier compensation on C_OUT.

How does the SC59R package differ electrically from SC59 in AP130 variants?

SC59R reverses the pin order (GND–OUT–IN vs. IN–OUT–GND in SC59), enabling different PCB routing strategies-especially beneficial for separating noisy input traces from sensitive output paths. Thermal resistance (250°C/W) and electrical specs remain identical between SC59 and SC59R packages.

Does AP130-30RL-7 support reverse polarity protection?

No. The device lacks integrated reverse-voltage blocking; applying negative voltage to IN or OUT relative to GND may damage the PMOS pass transistor or internal circuitry. External protection diodes are required in systems prone to reverse connection or back-driving.