Diodes Incorporated AP7354-30W5-7

Overview

AP7354-30W5-7 from Diodes Incorporated is a 3.0V fixed-output, 150mA ultra-low quiescent current LDO regulator in SOT25 package, featuring ±1% output voltage accuracy over temperature, 0.25µA quiescent current, and enable-controlled shutdown. It delivers stable power to wearable sensors and IoT edge nodes where battery life extension is critical.

For engineers reviewing the AP7354-30W5-7 datasheet, AP7354-30W5-7 pinout, AP7354-30W5-7 application, or AP7354-30W5-7 equivalent, key selection factors include dropout voltage at 150mA (0.18V typ), EN logic thresholds (0.4V low / 1.0V high), output discharge capability (enabled in W5 variant), and thermal resistance (162°C/W).

Technical Context

The AP7354-30W5-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and active-high enable input-enabling precise regulation with minimal external components. Its internal resistor network fixes VOUT at 3.0V, eliminating external feedback dividers.

It operates across 2.0V–5.5V input range and maintains regulation down to 0.18V dropout at 150mA load. The device supports output discharge via internal NMOS switch when EN is low, reducing residual voltage on downstream circuits during shutdown.

Key Specifications

Pinout & Package

SOT25 package (3.0mm × 2.8mm × 1.3mm), surface-mount, lead-free, RoHS-compliant. Matte tin-plated leads, solderable per MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP1700-3002E/TO and XC6206P302MR-G, AP7354-30W5-7 uniquely combines ultra-low IQ (0.25µA), enable control, output discharge, and dual-GND SOT25 thermal performance - making it optimal for compact, battery-constrained, and functionally safe designs.

Availability

AP7354-30W5-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor modules, and wireless communication devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for AP7354-30W5-7 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and distribution operations across Asia, Europe, and the Americas.

The AP7354 belongs to Diodes' ultra-low-IQ LDO family, engineered specifically for energy-harvesting and battery-operated systems where micropower efficiency and small footprint are primary constraints.

FAQ

What is the minimum input voltage required for AP7354-30W5-7 to regulate 3.0V output at 150mA?

The minimum input voltage is determined by dropout: 3.0V + 0.18V = 3.18V (typical). At worst-case 0.35V dropout (per datasheet), VIN must be ≥3.35V to maintain regulation at full load and temperature extremes. Below this, output collapses linearly.

Does AP7354-30W5-7 require an external pull-up on the EN pin for reliable startup?

No external pull-up is required. EN is internally biased and functions as a CMOS input. To ensure startup, drive EN ≥1.0V (min) from a valid logic source. If unused, connect EN directly to VIN - not via resistor - to avoid unintended shutdown due to leakage or noise.

Can AP7354-30W5-7 be used with ceramic capacitors smaller than 0.1µF?

No. The datasheet specifies 0.1µF minimum for both CIN and COUT using X5R/X7R dielectrics. Smaller values risk instability and excessive output ripple during load transients, as verified in load transient response graphs (Fig. 7–10). Lower ESR alternatives must meet same capacitance and voltage rating.

Is the SOT25 package of AP7354-30W5-7 pin-compatible with other Diodes LDOs like AP2204K-3.0?

No. AP2204K-3.0 uses SOT23-5 with different pin mapping (VIN, GND, EN, VOUT, NC), while AP7354-30W5-7 SOT25 assigns pins as VIN, GND, VOUT, EN, GND. Physical pin alignment differs - direct replacement would cause short circuits or open connections.