Diodes Incorporated AP7342D-2818FS6-7

Overview

AP7342D-2818FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, delivering fixed 2.8V and 1.8V outputs in a 1.2mm × 1.2mm X2-DFN1212-6 package. It features ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µV_rms output noise (10Hz–100kHz), and 35µA quiescent current per active channel-optimized for RF supply rails and camera sensor power in space-constrained portable electronics.

For engineers reviewing the AP7342D-2818FS6-7 datasheet, AP7342D-2818FS6-7 pinout, AP7342D-2818FS6-7 application, or AP7342D-2818FS6-7 equivalent, key selection criteria include dual-rail sequencing capability, low-noise performance under 150mA load, thermal dissipation in ultra-small footprint, and compatibility with 0.47µF ceramic output capacitors.

Technical Context

The AP7342D-2818FS6-7 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, with no internal discharge path between channels unless enabled via external configuration.

Each regulator employs a precision voltage reference and error amplifier to maintain output stability across line (1.7V–5.25V VIN), load (0–150mA), and temperature (−40°C to +85°C) variations. Dropout voltage ranges from 0.22V (3.0V < VOUT ≤ 3.6V) to 0.59V (VOUT ≤ 1.2V) at full load, enabling efficient operation in battery-powered systems with tight headroom.

Key Specifications

Pinout & Package

X2-DFN1212-6 package: 1.2mm × 1.2mm body, 0.4mm pitch, exposed thermal pad (non-functional GND connection). Optimized for high-density PCB layouts with minimal board area and low thermal resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP7342D-2818FS6-7, the AP7345D offers measurable PSRR and thermal performance gains for next-gen designs, while the XC6216 sacrifices sequencing flexibility for lower BOM cost-making the AP7342D optimal for legacy portable designs requiring proven field reliability and independent rail control.

Availability

AP7342D-2818FS6-7 is available at Aetrix Electronics and suitable for smartphone baseband power, RF front-end supply, and mobile camera sensor bias requiring stable component supply, long-term obsolescence management, and traceable sourcing for production ramp.

Supply support for AP7342D-2818FS6-7 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 connectivity solutions for consumer, industrial, and automotive markets.

The AP7342 series belongs to Diodes' high-PSRR, low-noise LDO portfolio designed specifically for portable communication equipment where compact size, battery efficiency, and analog signal purity are critical design constraints.

FAQ

What is the maximum allowable input voltage for AP7342D-2818FS6-7?

The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Exceeding 5.25V may trigger overvoltage protection or degrade long-term reliability. For 2.8V/1.8V outputs, typical use cases operate VIN between 3.0V and 4.2V (single-cell Li-ion), ensuring sufficient dropout margin and thermal safety.

Does AP7342D-2818FS6-7 include automatic output discharge?

Yes-the "D" suffix indicates integrated discharge circuitry for both channels. When EN1 or EN2 is pulled low, the corresponding VOUT pin is actively discharged through an internal ~50Ω N-channel MOSFET, preventing residual voltage hold-up that could delay system reset or cause latch-up in downstream logic.

Can AP7342D-2818FS6-7 drive 150mA continuously on both channels simultaneously?

Yes-each channel is rated for guaranteed 150mA output current. However, simultaneous full-load operation increases junction temperature; with 1.2mm × 1.2mm DFN package and no thermal pad connection to PCB ground, derating to 120mA per channel is recommended above +60°C ambient to maintain T_J < 125°C per JEDEC JESD51-2.

What capacitor values are required for stable operation?

A minimum 0.47µF ceramic capacitor is required on both CIN (between VIN and GND) and each COUT (VOUT1–GND and VOUT2–GND). These must be placed within 2mm of their respective pins. Larger values (e.g., 1.0µF) improve transient response but are not necessary for stability-the device is optimized for low-ESR ceramics and does not require tantalum or electrolytic types.