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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Diodes Incorporated AP7342-3328FS6-7

Name: AP7342-3328FS6-7
Brand: Diodes Incorporated
SKU: AP7342-3328FS6-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7342-3328FS6-7

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 6-XFDFN Exposed Pad

Datasheet:: AP7342-3328FS6-7.pdf

Description:: IC REG LIN 2.8V/3.3V X2DFN1212-6

Quantity:: RFQ Add To RFQ list

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Inventory:1,700

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Product details

Overview

AP7342-3328FS6-7 from Diodes Incorporated is a dual-channel CMOS low-dropout regulator delivering fixed 3.3V and 2.8V outputs, each rated for 150mA continuous current, ±1% output voltage accuracy over temperature, 75dB PSRR at 1kHz, and 60µV_rms output noise (10Hz–100kHz). It operates from 1.7V to 5.25V input and targets RF supply rails in compact portable electronics.

For engineers reviewing the AP7342-3328FS6-7 datasheet, AP7342-3328FS6-7 pinout, AP7342-3328FS6-7 application, or AP7342-3328FS6-7 equivalent, key selection criteria include independent enable control per channel, ultra-low quiescent current (35µA per active channel), thermal performance in X2-DFN1212-6, and compatibility with 0.47µF ceramic output capacitors.

Technical Context

The AP7342 integrates two independent LDO regulators sharing a common input but featuring separate EN1/EN2 control inputs and VOUT1/VOUT2 outputs. Each channel uses a CMOS pass device with internal voltage reference and error amplifier, enabling fast load transient response and no external compensation.

It supports non-discharge operation (as indicated by absence of "D" suffix), meaning outputs retain residual voltage after shutdown. The thermal pad is electrically isolated and intended for PCB copper area connection to GND or floating-never used as sole GND electrode.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltages	3.3V (Channel 1) and 2.8V (Channel 2), factory-fixed, eliminating external resistor networks
Max Output Current	150mA per channel - sufficient for powering baseband processors and RF front-end ICs
Output Accuracy	±1% at +25°C, ±1.5% over −40°C to +85°C - ensures stable core/logic rail compliance
PSRR	75dB at 1kHz - suppresses switching noise from adjacent DC/DC converters in shared power domains
Output Noise	60µV_rms (10Hz–100kHz) - meets low-noise requirements for RF synthesizers and ADC reference supplies
Quiescent Current	35µA per enabled channel - extends battery life in always-on sensor or standby subsystems
Dropout Voltage	220mV at 150mA for 3.3V output - enables operation from single-cell Li-ion (3.0V min) with margin

Pinout & Package

X2-DFN1212-6 package: 1.2mm × 1.2mm footprint, 0.4mm height, thermally enhanced with exposed pad (non-electrical GND connection point).

Pin/Terminal	Circuit Role	Design Meaning
1	VOUT1	Regulated 3.3V output - requires local 0.47µF ceramic capacitor to GND for stability
2	VOUT2	Regulated 2.8V output - independently decoupled; enables mixed-voltage subsystem partitioning
3	GND	Analog/digital ground reference - must connect to low-impedance PCB ground plane
4	EN2	Active-high enable for Channel 2 - drives high (>1.3V) to activate 2.8V rail; must not float
5	VIN	Common input (1.7V–5.25V) - shared by both regulators; requires 0.47µF ceramic decoupling
6	EN1	Active-high enable for Channel 1 - independent sequencing control for 3.3V rail power-up/down

Key Features

Feature	Design Value
Dual independent enable inputs	EN1 and EN2 allow staggered power sequencing - critical for SoC boot order and I/O voltage ramp control
Ultra-low noise output	60µV_rms noise floor preserves SNR in RF receivers and high-resolution analog signal chains
High PSRR at 1kHz	75dB rejection minimizes coupling of DC/DC ripple into sensitive analog or clock domains
Low dropout at full load	220mV dropout at 150mA enables efficient use of aging or discharged batteries in portable systems
Small-footprint DFN package	X2-DFN1212-6 occupies only 1.44mm² - ideal for space-constrained camera modules and wearables

Applications

Smartphone Baseband Power

RF Transceiver Supply

Use Scenario: Powering application processor I/O banks and memory interfaces requiring tightly regulated 3.3V and 2.8V rails.

IC Role / Device Role / Timing Role: Dual-LDO providing independent, low-noise, sequenced voltage domains for digital subsystems.

Use Value: Eliminates need for two discrete single-channel LDOs, reducing BOM count and PCB area by >30%.

Use Scenario: Supplying RF front-end modules (PA, LNA, switch) where supply noise directly impacts EVM and ACLR.

IC Role / Device Role / Timing Role: Low-noise, high-PSRR voltage source isolating RF circuitry from noisy system power rails.

Use Value: 60µV_rms noise and 75dB PSRR maintain RF linearity without additional ferrite-bead filtering.

Camera Module Core Logic

Portable Media Player Audio Codec

Use Scenario: Delivering clean 2.8V for image sensor analog front-end and 3.3V for ISP digital logic in ultra-thin camera modules.

IC Role / Device Role / Timing Role: Dual-output regulator enabling compact, thermally efficient power delivery in <1.5mm Z-height assemblies.

Use Value: X2-DFN1212-6 footprint allows placement directly beneath sensor package, minimizing trace inductance.

Use Scenario: Powering stereo audio DAC/ADC and headphone amplifier in battery-powered media players.

IC Role / Device Role / Timing Role: Low-quiescent-current dual LDO sustaining long playback time while maintaining low THD+N.

Use Value: 35µA per active channel extends runtime in standby mode without compromising audio fidelity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AP7345D-3328FS6-7	Discharge-enabled version (pulls VOUT to GND on disable); identical specs otherwise	Required where rapid output discharge prevents back-powering or latch-up in hot-swap scenarios	Select when system-level safety mandates zero-volt hold-off during shutdown
TPL7407LDR	Single 7-channel high-side driver (not LDO); 500mA per channel, no voltage regulation	Used for GPIO expansion and LED driving - functionally unrelated to voltage regulation	Not a functional alternative; included only for cross-reference clarity

Compared with AP7342-3328FS6-7, the AP7345D-3328FS6-7 adds controlled output discharge without sacrificing noise, PSRR, or quiescent current - making it the recommended drop-in upgrade per Diodes' design notice. TPL7407LDR serves entirely different system functions and cannot replace this dual-LDO.

Availability

AP7342-3328FS6-7 is available at Aetrix Electronics and suitable for smartphone baseband power, RF transceiver supply, and camera module core logic requiring stable component supply across industrial temperature ranges and long-lifecycle programs.

Supply support for AP7342-3328FS6-7 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 for consumer, computing, communications, industrial, and automotive markets.

The AP7342 belongs to Diodes' high-PSRR, low-noise LDO family designed specifically for battery-powered portable electronics demanding minimal board space, ultra-low quiescent current, and robust noise immunity.

FAQ

What is the thermal pad connection requirement for AP7342-3328FS6-7?

The thermal pad is electrically isolated and must be connected to a large PCB copper area tied to GND or left floating - never used as the sole GND electrode. This improves thermal dissipation without introducing ground loop risks. Diodes specifies that the pad should not serve as the primary GND conduction path.

Does AP7342-3328FS6-7 support independent power sequencing between its two outputs?

Yes - EN1 controls VOUT1 (3.3V) and EN2 controls VOUT2 (2.8V) independently. Each enable pin accepts 1.3V–5.25V logic-high to activate its respective channel, allowing precise startup/shutdown timing for multi-rail systems like application processors with strict I/O vs. core voltage sequencing.

Can AP7342-3328FS6-7 operate from a single-cell Li-ion battery throughout its discharge curve?

Yes - with 1.7V minimum input and 220mV dropout at 150mA for the 3.3V output, it remains functional down to ~3.0V input, covering most of a standard Li-ion cell's usable range (3.0V–4.2V). The 2.8V output has even lower dropout (190mV), further extending operational window.

Why does Diodes recommend AP7345D over AP7342 for new designs?

AP7345D adds integrated output discharge circuitry (50Ω N-channel FET per channel), pulling VOUT to GND when disabled - preventing back-powering, leakage paths, or unintended biasing in complex multi-rail systems. All other electrical specs match AP7342, making it a direct functional upgrade.

AP7342-3328FS6-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 6-XFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 2

Voltage - Input (Max):: 5.25V

Voltage - Output (Min/Fixed):: 2.8V, 3.3V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.3V @ 150mA, 0.29V @ 150mA

Current - Output:: 150mA, 150mA

Current - Quiescent (Iq):: 100 µA

Current - Supply (Max):: -

PSRR:: 75dB (1kHz)

Control Features:: Enable

Protection Features:: Over Current

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: X2-DFN1212-6

AP7342-3328FS6-7 FAQ

1.How can I place an order for AP7342-3328FS6-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7342-3328FS6-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AP7342-3328FS6-7 reliable?

The price and inventory of AP7342-3328FS6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7342-3328FS6-7 is usually 5 days.

3.What payment methods are accepted for AP7342-3328FS6-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7342-3328FS6-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7342-3328FS6-7?

AP7342-3328FS6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7342-3328FS6-7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AP7342-3328FS6-7?

For technical support, including AP7342-3328FS6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7342-3328FS6-7 requirements.

6.How does Aetrix verify that AP7342-3328FS6-7 is sourced from the original manufacturer or authorized distributors?

All AP7342-3328FS6-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP7342-3328FS6-7 meets industry standards.

7.What is the process for return or replacement of AP7342-3328FS6-7?

All AP7342-3328FS6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7342-3328FS6-7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AP7342-3328FS6-7 part is unused and in its original packaging.

Return procedure for AP7342-3328FS6-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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