Diodes Incorporated AP7342D-2812FS6-7

Overview

AP7342D-2812FS6-7 from Diodes Incorporated is a dual-channel, 150mA low-dropout linear regulator with independent enable control per channel, delivering fixed 2.8V and 1.2V 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 ultra-low 35µA quiescent current in single-channel active mode-optimized for RF supply rails and camera sensor power in space-constrained portable electronics.

For engineers reviewing the AP7342D-2812FS6-7 datasheet, AP7342D-2812FS6-7 pinout, AP7342D-2812FS6-7 application, or AP7342D-2812FS6-7 equivalent, key selection criteria include dual-rail sequencing capability, discharge-enabled output behavior (D-suffix), thermal performance in 1.2mm² footprint, and compatibility with 0.47µF ceramic output capacitors without external compensation.

Technical Context

The AP7342D-2812FS6-7 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 built-in short-circuit protection limiting foldback current to 55mA and dropout voltage as low as 0.22V at 150mA for the 2.8V rail.

Each regulator employs a precision voltage reference and error amplifier to maintain output stability across −40°C to +85°C ambient, with load regulation of ≤30mV and line regulation of ≤0.1%/V. The D-suffix variant includes internal N-channel discharge transistors (50Ω typical on-resistance) that actively pull VOUT to GND when the respective EN pin is low-enabling fast output discharge during shutdown sequences.

Key Specifications

Pinout & Package

X2-DFN1212-6 package: 1.2mm × 1.2mm body, 0.4mm pitch, exposed thermal pad (non-functional as GND electrode-requires external copper pour connected to GND for thermal relief).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP7342D-2812FS6-7, the AP7345D offers measurable improvements in PSRR and dropout for next-gen portable designs, while the TPL7407LDR serves an entirely different functional domain-highlighting that true alternatives must match dual-LDO topology, fixed-voltage pairing, and discharge capability.

Availability

AP7342D-2812FS6-7 is available at Aetrix Electronics and suitable for smartphone camera modules, RF front-end power supplies, portable media player SoCs, and wireless adapter baseband designs requiring stable component supply with known end-of-life timing.

Supply support for AP7342D-2812FS6-7 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 noise-sensitive portable electronics where compact size, dual-rail flexibility, and fast transient response are critical.

FAQ

What does the 'D' suffix in AP7342D-2812FS6-7 indicate?

The 'D' suffix denotes integrated output discharge functionality: when EN1 or EN2 is driven low, an internal 50Ω N-channel MOSFET actively pulls the corresponding VOUT pin to GND. This prevents residual voltage from back-powering downstream circuitry and ensures clean power-down sequencing-critical for camera modules and RF transceivers requiring strict voltage domain isolation.

Can AP7342D-2812FS6-7 operate with only one channel enabled?

Yes-EN1 and EN2 are fully independent. Driving EN1 high and EN2 low activates only the 2.8V rail while disabling the 1.2V rail, drawing just 35µA quiescent current. This configuration is commonly used to power RF sections during transmit bursts while keeping baseband logic in low-power state, minimizing system-wide standby current.

What is the minimum input voltage required for stable 2.8V output at 150mA?

Per datasheet specifications, the dropout voltage for the 2.8V rail is 0.22V (typical) at 150mA. Therefore, a minimum input voltage of 3.02V is required to maintain regulation. At 3.0V input, the device operates near dropout-designers should verify thermal performance and consider derating for ambient temperatures above 60°C or poor PCB copper area.

Is AP7342D-2812FS6-7 suitable for automotive applications?

No-AP7342D-2812FS6-7 is not AEC-Q100 qualified and lacks automotive-grade screening, packaging, or documentation. Diodes explicitly states that automotive use requires contacting their representative for PPAP-capable, IATF 16949-manufactured parts. For automotive designs, the pin-compatible AP7345D-2812FS6-7 offers AEC-Q100 Grade 1 options and enhanced reliability testing.