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

Diodes Incorporated AP7354-12SA-7

Name: AP7354-12SA-7
Brand: Diodes Incorporated
SKU: AP7354-12SA-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7354-12SA-7

Manufacturer:: Diodes Incorporated

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

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: AP7354-12SA-7.pdf

Description:: IC REG LIN 1.2V SOT23 T&R 3K

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

AP7354-12SA-7 from Diodes Incorporated is a fixed 1.2V, 150mA ultra-low quiescent current LDO regulator in SOT23 package, featuring ±1% output voltage accuracy over temperature, 0.25µA quiescent current, and enable-controlled shutdown for battery-sensitive applications such as wearable sensors and IoT edge nodes.

For engineers reviewing the AP7354-12SA-7 datasheet, AP7354-12SA-7 pinout, AP7354-12SA-7 application, or AP7354-12SA-7 equivalent, key selection criteria include dropout voltage at 150mA (0.60V max at 1.2V), EN logic thresholds (0.4V low / 1.0V high), thermal resistance (170°C/W), and compatibility with 0.1µF ceramic input/output capacitors.

Technical Context

The AP7354-12SA-7 integrates a precision voltage reference, error amplifier, current-limit circuit, and active-high enable input to deliver stable 1.2V output across 2.0–5.5V input range. Its internal resistor network fixes VOUT without external feedback components.

It operates in dropout mode down to 0.60V (typ.) at full 150mA load and achieves 0.02µA standby current when EN is pulled low. The device lacks output discharge functionality-confirmed by its "SA" (SOT23, non-discharge) suffix per Diodes' ordering guide.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.2V ±1% at +25°C; ±2% over –40°C to +85°C - ensures stable rail for low-power MCUs and sensors.
Max Output Current	150mA - sufficient to power BLE SoCs, MEMS sensors, or camera modules without thermal derating in SOT23.
Quiescent Current	0.25µA typ. - extends battery life in always-on wearables; drops to 0.02µA in shutdown via EN pin.
Input Voltage Range	2.0V to 5.5V - supports single-cell Li-ion (3.0–4.2V), coin cells (3V), or regulated 3.3V/5V rails.
Dropout Voltage	0.60V max at 150mA (VOUT = 1.2V) - enables regulation from 1.8V input, critical for low-VIN energy harvesting systems.
Enable Thresholds	V_EN(H) ≥ 1.0V, V_EN(L) ≤ 0.4V - compatible with 1.8V/3.3V GPIOs without level-shifting.
Thermal Resistance	θ_JA = 170°C/W (SOT23) - limits junction rise to ~25°C above ambient at 150mA under typical PCB layout.

Pinout & Package

SOT23-3 package (JEDEC TO-236AB), 1.3mm × 2.9mm footprint, 0.915mm height, matte tin-plated leads, RoHS-compliant and halogen-free.

Pin	Circuit Role	Design Meaning
1	VIN	Main power input; requires 0.1µF ceramic decoupling capacitor placed adjacent to pin to suppress supply noise and support transient response.
2	GND	Analog/digital ground reference; must connect directly to low-impedance PCB ground plane to minimize voltage drop and ensure regulation accuracy.
3	VOUT	Regulated 1.2V output; connects to load and output capacitor; no internal discharge path (non-D variant).

Key Features

Feature	Design Value
Ultra-low I_Q	0.25µA typ. enables >1-year operation on a CR2032 (220mAh) powering a 1µA sleep-mode sensor node.
High Accuracy	±1% initial tolerance and ±2% over temperature ensures reliable ADC reference or core voltage for 1.2V logic domains.
Wide Input Range	2.0–5.5V operation supports direct connection to unregulated battery sources without pre-regulation stages.
Enable Control	Active-high EN allows precise system-level power sequencing and zero-current shutdown for firmware-controlled power gating.
Stable with Small Caps	Guaranteed stability with 0.1µF X5R/X7R ceramics eliminates need for bulky tantalum or aluminum electrolytics.

Applications

Wearable Health Monitor

IoT Sensor Node

Use Scenario: Continuous ECG/PPG sensing in wrist-worn device powered by CR2032 or thin-film battery.

IC Role / Device Role / Timing Role: Primary 1.2V supply for ultra-low-power MCU and analog front-end; enables <1µA deep-sleep mode via EN control.

Use Value: 0.25µA quiescent current extends battery life beyond 18 months; ±1% accuracy maintains signal chain SNR across temperature swings.

Use Scenario: Battery-powered environmental sensor (temp/humidity/pressure) transmitting data via LoRaWAN every 10 minutes.

IC Role / Device Role / Timing Role: Regulates 1.2V rail for sensor IC and sub-GHz transceiver during brief 150mA transmit bursts.

Use Value: 0.60V dropout at 150mA allows operation down to 1.8V battery voltage; fast turn-on (<10µs) ensures clean power delivery before RF activation.

Smart Camera Module

Industrial Edge Controller

Use Scenario: Miniaturized USB-C camera dongle using single-cell Li-ion (3.0–4.2V) with image sensor requiring tight 1.2V core supply.

IC Role / Device Role / Timing Role: Provides low-noise, accurate 1.2V for CIS pixel array and ISP core; EN synchronized with USB enumeration.

Use Value: ±1% VOUT accuracy prevents digital gain miscalibration; 170°C/W θ_JA avoids thermal throttling in confined enclosure.

Use Scenario: DIN-rail mounted PLC I/O module powered from 24V DC-DC converter with local 3.3V/1.2V rails.

IC Role / Device Role / Timing Role: Generates isolated 1.2V for FPGA configuration memory and low-voltage logic interfaces.

Use Value: 4kV HBM ESD rating protects against field-induced transients; -40°C to +85°C operating range meets industrial ambient requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700T-1202E/TT	1.2V, 250mA, 1.6µA I_Q, SOT23-3 - 6.4× higher quiescent current than AP7354-12SA-7.	Less suitable for multi-year battery life; acceptable where 150mA load headroom is needed.	Choose if higher output current margin is prioritized over ultra-low I_Q.
NCP170AMX120TCG	1.2V, 150mA, 0.5µA I_Q, SOT23-3 - 2× higher quiescent current, same accuracy and package.	Shorter battery runtime in always-on use cases; identical thermal and layout behavior.	Choose only if Diodes' supply chain constraints require second-source qualification.

Compared with MCP1700T-1202E/TT and NCP170AMX120TCG, the AP7354-12SA-7 delivers the lowest quiescent current (0.25µA) in the SOT23-3 form factor while maintaining 150mA capability and ±1% accuracy-making it optimal for multi-year battery deployments where every nanoamp counts.

Availability

AP7354-12SA-7 is available at Aetrix Electronics and suitable for wearable electronics, IoT sensor nodes, and battery-operated camera modules requiring stable component supply with guaranteed long-term availability.

Supply support for AP7354-12SA-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 power management, signal integrity, and connectivity applications.

The AP7354 belongs to Diodes' ultra-low-I_Q LDO family, engineered specifically for extended-life battery-powered devices where minimizing standby power dominates design priorities.

FAQ

What is the maximum allowable input voltage for AP7354-12SA-7?

The absolute maximum input voltage is 6.0V per the datasheet Absolute Maximum Ratings table. Operation above 5.5V violates recommended conditions and risks permanent damage. For continuous operation, VIN must remain within 2.0V–5.5V, with derating applied above +40°C ambient due to thermal limitations of the SOT23 package.

Does AP7354-12SA-7 include output discharge functionality?

No. The "SA" suffix explicitly denotes SOT23 packaging without output discharge. Only variants with "D" in the part number (e.g., AP7354D-12W5-7) integrate an internal discharge FET. This version holds VOUT high after shutdown until external leakage discharges the output capacitor.

Can AP7354-12SA-7 be used with ceramic capacitors smaller than 0.1µF?

No. The datasheet specifies stability with ≥0.1µF X5R/X7R ceramic capacitors on both input and output. Using smaller values risks oscillation or poor transient response, especially under load steps up to 150mA. Layout proximity and low-ESR characteristics are equally critical.

Is the EN pin internally pulled up or down on AP7354-12SA-7?

There is no internal pull-up or pull-down on the EN pin. It must be actively driven high (≥1.0V) to enable regulation or low (≤0.4V) to enter shutdown. Leaving EN floating causes undefined operation and potential shoot-through or latch-up; tie to VIN if always-on operation is required.

AP7354-12SA-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 1.2V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.9V @ 150mA

Current - Output:: 150mA

Current - Quiescent (Iq):: 0.6 µA

Current - Supply (Max):: -

PSRR:: -

Control Features:: Enable

Protection Features:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

AP7354-12SA-7 FAQ

1.How can I place an order for AP7354-12SA-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7354-12SA-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 AP7354-12SA-7 reliable?

The price and inventory of AP7354-12SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7354-12SA-7 is usually 5 days.

3.What payment methods are accepted for AP7354-12SA-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7354-12SA-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7354-12SA-7?

AP7354-12SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7354-12SA-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 AP7354-12SA-7?

For technical support, including AP7354-12SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7354-12SA-7 requirements.

6.How does Aetrix verify that AP7354-12SA-7 is sourced from the original manufacturer or authorized distributors?

All AP7354-12SA-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 AP7354-12SA-7 meets industry standards.

7.What is the process for return or replacement of AP7354-12SA-7?

All AP7354-12SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7354-12SA-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 AP7354-12SA-7 part is unused and in its original packaging.

Return procedure for AP7354-12SA-7:

1.Submit a request within 90 days.

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

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