Diodes Incorporated AP7342D-2833FS6-7

Overview

AP7342D-2833FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, delivering fixed 2.8V and 3.3V outputs in a 1.2mm × 1.2mm X2-DFN1212-6 package. It features ±1% output voltage accuracy over temperature, 75dB PSRR at 1kHz, 60µV_RMS output noise (10Hz–100kHz), and ultra-low 35µA quiescent current in single-channel active mode - optimized for RF supply rails and camera power domains in space-constrained portable electronics.

For engineers reviewing the AP7342D-2833FS6-7 datasheet, AP7342D-2833FS6-7 pinout, AP7342D-2833FS6-7 application, or AP7342D-2833FS6-7 equivalent, key selection criteria include dual-rail sequencing capability, low-noise performance under 30mA load, thermal dissipation limits in DFN1212, and compatibility with 0.47µF ceramic output capacitors without external compensation.

Technical Context

The AP7342D-2833FS6-7 integrates two independent CMOS-based LDO regulators sharing a common input (VIN) and ground (GND), each with dedicated enable (EN1/EN2) and output (VOUT1/VOUT2) pins. Its architecture supports simultaneous or staggered activation of 2.8V and 3.3V rails, with no internal discharge path between channels unless enabled via external circuitry - confirmed by the "D" suffix denoting discharge-capable version.

Each regulator employs a precision voltage reference and error amplifier to maintain regulation across 1.7V–5.25V input range, with dropout voltages as low as 0.22V at 150mA for VOUT > 3.0V. The device operates across –40°C to +85°C ambient and includes foldback short-circuit protection limiting output current to ~55mA during VOUT-to-GND faults.

Key Specifications

Pinout & Package

X2-DFN1212-6 package: 1.2mm × 1.2mm body, 0.4mm pitch, 0.39mm height, thermal pad exposed on bottom for PCB-level heat sinking (recommended connection to GND plane).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP7342D-2833FS6-7, the AP7345D-2833FS6-7 offers measurable improvements in noise and PSRR while maintaining drop-in compatibility, whereas TPL7407LDR serves an entirely different circuit role and provides no regulation capability - confirming AP7342D remains viable only for legacy redesigns where qualification timelines prohibit migration.

Availability

AP7342D-2833FS6-7 is available at Aetrix Electronics and suitable for smartphone camera modules, portable medical sensors, industrial handheld scanners, and Wi-Fi/BT coexistence RF supply designs requiring stable component supply with known end-of-life planning.

Supply support for AP7342D-2833FS6-7 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 ICs, with design centers across Asia, Europe, and the US, and manufacturing in ISO/TS 16949-certified facilities.

The AP7342 series belongs to Diodes' high-PSRR, low-noise LDO portfolio targeting portable and battery-powered applications - engineered specifically for RF, imaging, and audio subsystems demanding clean, sequenced dual-rail power in minimal footprint.

FAQ

Is AP7342D-2833FS6-7 pin-compatible with AP7345D-2833FS6-7?

Yes - both devices share identical X2-DFN1212-6 package, pin assignment, and footprint. The AP7345D is a direct functional upgrade with enhanced PSRR and noise performance, same enable logic, and identical 2.8V/3.3V output configuration. No PCB redesign is needed for migration.

What is the maximum allowable input voltage for continuous operation?

The absolute maximum input voltage is 6.0V, but recommended continuous operating VIN is 1.7V to 5.25V per datasheet Section 5. Exceeding 5.25V risks exceeding power dissipation limits - at 150mA load and 3.3V output, VIN > 5.25V yields >300mW dissipation, exceeding the 600mW absolute max only under worst-case thermal conditions.

Can EN1 and EN2 be tied together and driven by a single GPIO?

Yes - EN1 and EN2 may be paralleled and driven by one microcontroller GPIO, enabling simultaneous turn-on/off of both 2.8V and 3.3V rails. Each EN pin draws <1.0µA leakage, so combined loading remains negligible for standard I/O drivers. Ensure drive voltage meets 1.3V min high threshold.

Does the "D" suffix indicate built-in discharge FETs on both outputs?

Yes - the "D" denotes discharge-capable version. When either EN pin is pulled low, its corresponding VOUT is actively discharged to GND via an internal ~50Ω NMOS switch (per Electrical Characteristics Table, Note 11), preventing floating outputs and ensuring fast rail collapse during shutdown - critical for reset timing integrity.