Diodes Incorporated AP7365-30YRG-13

Overview

AP7365-30YRG-13 from Diodes Incorporated is a fixed-output 3.0V, 600mA low-dropout linear regulator in SOT89-3 package with 35μA quiescent current, 300mV dropout at full load, and integrated enable control. It delivers stable power to FPGA I/O rails, DSP core supplies, and battery-powered consumer electronics requiring fast transient response and ultra-low standby consumption.

For engineers reviewing the AP7365-30YRG-13 datasheet, AP7365-30YRG-13 pinout, AP7365-30YRG-13 application, or AP7365-30YRG-13 equivalent, this page provides verified electrical specifications, thermal performance data, EN-controlled startup timing (200μs), PSRR (65dB @ 1kHz), and real-world load/line transient behavior for portable and embedded power design validation.

Technical Context

The AP7365-30YRG-13 implements a PMOS pass transistor architecture enabling low dropout (300mV @ 600mA) and high PSRR (65dB @ 1kHz) without external compensation. Its bandgap reference (0.8V) and error amplifier maintain ±2% output accuracy across -40°C to +85°C ambient.

Thermal shutdown activates at +145°C with +15°C hysteresis, while current limit clamps at 1.4A and short-circuit protection limits output to 240mA. The EN pin accepts logic-high ≥1.4V to enable regulation and logic-low ≤0.4V to enter 0.1μA shutdown mode.

Key Specifications

Pinout & Package

SOT89-3 (YR package) with exposed thermal pad on pin 3 (IN), providing 133°C/W junction-to-ambient thermal resistance when mounted per FR-4 layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP7361-30YRG-13, the AP7365-30YRG-13 doubles output current headroom for FPGA I/O or multi-peripheral USB hubs; versus MCP1700-3002E/MB, it trades 31μA higher IQ for 350mA more current, integrated EN control, and superior transient response-making it optimal for active, sequenced, medium-power embedded systems.

Availability

AP7365-30YRG-13 is available at Aetrix Electronics and suitable for FPGA I/O power, wearable audio processors, portable medical sensors, and automotive infotainment USB hubs requiring stable component supply across production lifecycles.

Supply support for AP7365-30YRG-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 for power management, signal integrity, and connectivity applications.

The AP7365 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for battery-constrained portable electronics and high-transient industrial systems demanding fast response and robust fault protection.

FAQ

What is the minimum input voltage required for stable 3.0V output at 600mA?

The AP7365-30YRG-13 requires VIN ≥ 3.3V to maintain regulation at 600mA load, based on its 300mV dropout specification. At 3.3V input, it delivers precisely 3.0V output; operation below 3.3V results in unregulated output proportional to (VIN – 0.3V). Input must remain ≥2.0V for basic functionality, but regulation ceases below the dropout threshold.

Can the EN pin be left floating, or must it be tied high?

The EN pin must never be left floating-it will cause unpredictable startup/shutdown behavior. If enable control is not needed, tie EN directly to IN (not VOUT) to ensure reliable turn-on. Pulling EN to GND forces 0.1μA shutdown current; driving it with a microcontroller GPIO meeting VIH ≥1.4V and VIL ≤0.4V enables precise sequencing.

Is an external capacitor required on the ADJ pin for the AP7365-30YRG-13?

No-ADJ pin is unused in fixed-output variants like AP7365-30YRG-13 and internally connected to the feedback network. The datasheet confirms ADJ is "NC" (no connection) for SOT89 fixed versions. External components on ADJ are only required for adjustable-output variants (e.g., AP7365-ADJ in SOT25 or U-DFN2020-6).

How does thermal performance differ between SOT89-Y and SOT89-YR packages?

Both Y and YR denote SOT89-3 packages with identical thermal characteristics: θJA = 133°C/W and θJC = 30°C/W under standard FR-4 mounting. The "R" suffix indicates reverse pinout (IN/GND/OUT vs. OUT/GND/IN), but thermal pad layout and copper area requirements are identical. Thermal performance depends solely on PCB copper area, not Y/YR designation.