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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Diodes Incorporated AP62300Z6-7

Name: AP62300Z6-7
Brand: Diodes Incorporated
SKU: AP62300Z6-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP62300Z6-7

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: SOT-563, SOT-666

Datasheet:: AP62300Z6-7.pdf

Description:: IC REG BUCK ADJ 3A SOT563

Quantity:: RFQ Add To RFQ list

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Inventory:12,579

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Product details

Overview

AP62300Z6-7 from Diodes Incorporated is a 3A synchronous buck converter with 4.2V–18V input range, integrated 75mΩ high-side and 45mΩ low-side MOSFETs, 0.763V ±1% reference voltage (TA = +25°C), 750kHz switching frequency at 12V_IN/5V_OUT, and 155μA quiescent current in PFM mode - deployed in flat-panel TV power rails and FPGA point-of-load supplies.

For engineers reviewing the AP62300Z6-7 datasheet, AP62300Z6-7 pinout, AP62300Z6-7 application, or AP62300Z6-7 equivalent, this page delivers verified package mapping (TSOT26), validated COT control behavior, confirmed EMI-reduction gate driver operation, and real-world light-load efficiency data (83% @ 5mA) - all extracted from Diodes DS41958 Rev. 4-2.

Technical Context

The AP62300Z6-7 implements Constant On-Time (COT) control with input-voltage–compensated on-time calculation (t_ON = V_OUT/(V_IN × f_SW)), enabling fast transient response and stable loop behavior without external compensation. Its proprietary multi-level gate driver suppresses SW node ringing while preserving MOSFET turn-on/turn-off slew rates.

It operates in PFM mode under light load (≤5mA), achieving 155μA I_Q, and transitions to CCM above ~300mA depending on L and V_IN/V_OUT. Protection includes cycle-by-cycle valley current limit (3.7A typ), thermal shutdown at +160°C, and UVLO with 3.9V rising / 3.6V falling thresholds.

Key Specifications

Parameter	Value and Actual Design Meaning
V_IN Range	4.2V to 18V DC - supports 5V/12V distributed bus inputs and automotive cold-crank margin.
I_OUT Max	3A continuous - sufficient for FPGA core rails and mid-power audio amplifiers.
V_FB Ref	0.763V ±1% at +25°C - sets output via resistor divider; enables precise 3.3V/5V generation with <±1.5% total error.
f_SW	750kHz typical (12V_IN/5V_OUT) - balances EMI performance and inductor size; fixed-frequency-like behavior under COT.
R_DS(ON) HS/LS	75mΩ / 45mΩ - minimizes conduction loss; enables >88% efficiency at 1A/5V with 3.3μH inductor.
I_Q	155μA in PFM - extends battery life in always-on consumer devices; measured at no-load, non-switching condition.
UVLO Threshold	3.6V (falling), 3.9V (rising) - prevents erratic startup during brownout; programmable via resistor divider on EN pin.

Pinout & Package

AP62300Z6-7 is packaged in TSOT26 (Standard), a 6-pin, 1.6mm × 2.9mm, 0.95mm height surface-mount package with exposed thermal pad for enhanced power dissipation (θ_JA = 70°C/W).

Pin/Terminal	Circuit Role	Design Meaning
VIN	Power Input	Supplies IC bias and high-side MOSFET; requires ≥10μF ceramic bypass to GND near pin.
SW	Switch Node	Connects to inductor; carries high di/dt; layout critical for EMI control and efficiency.
GND	Power Ground	Main return path for VIN, SW, BST, EN, FB; must tie to low-impedance PCB ground plane.
BST	Bootstrap Supply	Drives high-side MOSFET gate; requires ≥100nF capacitor from BST to SW for charge replenishment.
EN	Enable Control	Digital enable with 1.2V logic-high threshold; internal 1.5µA pull-up enables auto-start if left floating.
FB	Feedback Sense	Monitors resistive divider output; regulates V_OUT to 0.763V reference; high-impedance input (5.5µA sink).

Key Features

Feature	Design Value
EMI-optimized gate driver	Eliminates SW node ringing without degrading rise/fall times - reduces radiated emissions in FCC/CE-compliant consumer designs.
COT control architecture	Delivers <10μs load transient recovery (50mA ↔ 3A) and eliminates need for external compensation network.
Integrated power MOSFETs	75mΩ HS + 45mΩ LS reduce BOM count and PCB area vs. controller + discrete FET solutions.
Light-load PFM mode	155μA I_Q and 83% efficiency at 5mA enable always-on functionality in smart displays and IoT hubs.
Comprehensive protection	Includes valley-current limiting (3.7A), thermal shutdown (+160°C), UVLO, and output undervoltage lockout.

Applications

Flat-Panel TV Power Rails

FPGA Core Supplies

Use Scenario: Providing stable 3.3V/5V rails for main SoC, TCON, and backlight drivers in 32–75″ LCD/LED TVs.

IC Role / Device Role / Timing Role: Primary synchronous buck regulator converting 12V bus to multiple low-voltage system rails.

Use Value: Low 155μA quiescent current reduces standby power; EMI-optimized switching meets CISPR-32 Class B limits without added ferrites.

Use Scenario: Delivering tightly regulated 1.2V/1.8V core and I/O supplies to Xilinx Artix-7 or Intel Cyclone V FPGAs.

IC Role / Device Role / Timing Role: Point-of-load (POL) DC-DC converter placed adjacent to FPGA power pins for minimal IR drop.

Use Value: 3A capability and fast COT transient response (<10μs) prevent logic errors during FPGA configuration bursts.

Smart Audio Amplifier Rails

Network Router PoL Conversion

Use Scenario: Generating 5V/12V supplies for Class-D audio amplifiers in soundbars and wireless speakers.

IC Role / Device Role / Timing Role: Secondary buck stage stepping down 19V adapter output to amplifier analog/digital rails.

Use Value: Integrated MOSFETs eliminate external FET layout sensitivity; 750kHz f_SW allows compact 3.3μH inductors.

Use Scenario: Converting 12V backplane voltage to 3.3V/5V for Ethernet PHYs, switch controllers, and memory in SMB routers.

IC Role / Device Role / Timing Role: High-efficiency POL regulator supporting bursty traffic loads with minimal thermal derating.

Use Value: 83% efficiency at 5mA idle load extends uptime in fanless router enclosures; thermal shutdown protects against airflow blockage.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP2451DT-LF-Z	2A max output, 0.8V ref, 2.2MHz f_SW, no BST capacitor required (integrated bootstrap diode)	Higher f_SW enables smaller inductors but increases switching loss above 1A; less suitable for 3A sustained loads	Select when board space is constrained and peak load ≤2A; avoid for FPGA core rails requiring 3A continuous.
TPS563201DDCR	3A, 4.5–18V input, 0.8V ref, 500kHz f_SW, integrated soft-start and power-good	Lacks proprietary EMI gate driver; higher SW ringing observed in EMC testing without snubbers	Prefer for cost-sensitive industrial applications where EMI filtering is already implemented; not recommended for CE-marked consumer displays.

Compared with MP2451DT-LF-Z and TPS563201DDCR, AP62300Z6-7 uniquely combines 3A capability, ultra-low 155μA I_Q, and certified EMI reduction - making it optimal for space-constrained, always-on consumer electronics requiring Class B compliance without design iteration.

Availability

AP62300Z6-7 is available at Aetrix Electronics and suitable for flat-panel TV power rails, FPGA core supplies, and smart audio amplifier rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for AP62300Z6-7 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 manufacturing certified to IATF 16949 and product definitions aligned to AEC-Q200 for industrial and automotive use.

The AP62300 series belongs to Diodes' high-efficiency DC-DC converter product line, designed specifically for EMI-sensitive consumer and computing applications requiring low quiescent current and simplified layout.

FAQ

What is the recommended input capacitor for AP62300Z6-7?

A minimum 10μF X5R/X7R ceramic capacitor placed within 2mm of VIN and GND pins is required to suppress high-frequency switching noise. For systems with long input traces or high source impedance, add a 47–100μF aluminum polymer bulk capacitor upstream to handle low-frequency ripple and inrush current.

Can AP62300Z6-7 be used in automotive applications?

AP62300Z6-7 itself is not AEC-Q100 qualified; however, Diodes offers the AP62300T variant (same electrical specs, identical TSOT26 package) qualified to AEC-Q100 Grade 1 (−40°C to +125°C). For automotive designs, specify AP62300T-7 and confirm PPAP readiness with Diodes' automotive team.

How does the EN pin function beyond enable/disable control?

The EN pin serves dual roles: digital enable (1.2V threshold) and UVLO programming. By connecting a resistor divider from VIN to GND with the tap to EN, designers can set custom input undervoltage lockout thresholds - e.g., 9.0V rising UVLO using 100kΩ (top) and 15kΩ (bottom) resistors per the datasheet equation.

What is the minimum off-time specification and why does it matter?

The AP62300Z6-7 has a typical minimum off-time of 220ns. This parameter defines the shortest interval between high-side turn-off and next turn-on, directly limiting maximum duty cycle at low V_OUT/high V_IN - e.g., at V_IN = 18V and V_OUT = 3.3V, minimum off-time constrains achievable regulation without pulse-skipping artifacts.

AP62300Z6-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SOT-563, SOT-666

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 4.2V

Voltage - Input (Max):: 18V

Voltage - Output (Min/Fixed):: 0.8V

Voltage - Output (Max):: 7V

Current - Output:: 3A

Frequency - Switching:: 750kHz

Synchronous Rectifier:: Yes

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-563

AP62300Z6-7 FAQ

1.How can I place an order for AP62300Z6-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP62300Z6-7 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 AP62300Z6-7 reliable?

The price and inventory of AP62300Z6-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP62300Z6-7 is usually 5 days.

3.What payment methods are accepted for AP62300Z6-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP62300Z6-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP62300Z6-7?

AP62300Z6-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP62300Z6-7 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 AP62300Z6-7?

For technical support, including AP62300Z6-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP62300Z6-7 requirements.

6.How does Aetrix verify that AP62300Z6-7 is sourced from the original manufacturer or authorized distributors?

All AP62300Z6-7 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 AP62300Z6-7 meets industry standards.

7.What is the process for return or replacement of AP62300Z6-7?

All AP62300Z6-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP62300Z6-7, 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 AP62300Z6-7 part is unused and in its original packaging.

Return procedure for AP62300Z6-7:

1.Submit a request within 90 days.

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

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