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

Diodes Incorporated AP65200SP-13

Name: AP65200SP-13
Brand: Diodes Incorporated
SKU: AP65200SP-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP65200SP-13

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Datasheet:: AP65200SP-13.pdf

Description:: IC REG BUCK ADJ 2A 8SO

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Product details

Overview

AP65200SP-13 from Diodes Incorporated is a 340 kHz external-compensation synchronous DC/DC buck converter with integrated 130 mΩ high- and low-side MOSFETs, delivering up to 2 A continuous output current at up to 95% efficiency across 4.7–18 V input and 0.925–16 V adjustable output. It implements automatic light-load efficiency improvement and current-mode control for fast transient response in FPGA, DSP, and consumer power rails.

For engineers reviewing the AP65200SP-13 datasheet, AP65200SP-13 pinout, AP65200SP-13 application, or AP65200SP-13 equivalent, key selection criteria include its 0.925 V feedback reference, 340 kHz fixed-frequency operation, BST/SS/EN/COMP pin functionality, thermal shutdown at +160°C, and SO-8EP package compatibility with distributed power systems.

Technical Context

The AP65200SP-13 uses current-mode control with internal slope compensation to suppress subharmonic oscillation at half-switching frequency (170 kHz), enabling stable loop behavior with minimal external components. Its error amplifier features 800 V/V gain and 1000 µA/V transconductance, interfacing directly with the COMP pin for external RC network tuning.

It integrates cycle-by-cycle overcurrent protection triggered by high-side R_DS(ON) sensing, with fold-back frequency reduction to 102 kHz when FB drops to 0.3 V. UVLO activates at 4.05 V (rising) with 250 mV hysteresis, and EN enables operation above 2.5 V with 220 mV lockout hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	4.7 V to 18 V - Supports 5 V, 12 V, and 18 V intermediate bus rails without external LDO pre-regulation.
Output Current	2 A continuous, 3 A peak - Sustains full load under 85°C ambient with SO-8EP θ_JA = 40°C/W.
Feedback Reference	0.925 V ±25 mV - Enables precise output regulation from 0.925 V to 16 V using standard resistor dividers.
Switching Frequency	340 kHz (±12%) - Fixed frequency allows predictable EMI filtering; avoids audio-band noise in consumer audio supplies.
High-Side R_DS(ON)	130 mΩ max - Minimizes conduction loss at 2 A, contributing to ≥95% efficiency at 12 V_IN/3.3 V_OUT.
Soft-Start Current	6 µA - Sets soft-start time via external capacitor (e.g., 0.1 µF → 15 ms), limiting inrush into bulk output capacitance.
Thermal Shutdown	+160°C with +40°C hysteresis - Protects die during sustained overload; resumes operation only after junction cools to ~120°C.

Pinout & Package

AP65200SP-13 is packaged in RoHS-compliant Green SO-8EP (exposed pad), with thermal resistance θ_JA = 40°C/W under recommended PCB layout (2"×2", 2 oz copper, thermal vias to GND).

Pin/Terminal	Circuit Role	Design Meaning
BST	Bootstrap Supply	Drives high-side MOSFET gate; requires ≥0.01 µF ceramic capacitor from SW to BST for charge pump operation.
IN	Main Power Input	Supplies IC bias and switching power; must be bypassed with ≥10 µF low-ESR capacitor to GND near pin.
SW	Switching Node	Connects to inductor input; carries high di/dt; requires tight layout to minimize EMI and voltage spikes.
GND	Power Ground	Primary return path for power switches; exposed pad must be soldered to ≥80% GND copper area for thermal performance.
FB	Feedback Input	Senses output via resistive divider; 0.925 V threshold sets regulation point; sensitive to noise-route away from SW.
COMP	Loop Compensation	Output of error amplifier; connects to external RC network (e.g., 6.8 kΩ + 6.8 nF) to stabilize control loop.
EN	Enable Control	Digital input: >2.5 V enables regulator; <1.98 V disables; internal 100 kΩ pull-up enables auto-start when tied to IN.
SS	Soft-Start Timing	Controls startup ramp rate; 6 µA current charges external capacitor (e.g., 0.1 µF → 15 ms); floating disables feature.

Key Features

Feature	Design Value
Automated Light-Load Efficiency Mode	Reduces quiescent current to 0.6 mA typical at 2.0 V_EN, extending battery life in standby without manual mode switching.
Integrated Dual MOSFETs	130 mΩ high- and low-side R_DS(ON) eliminates external switch selection, reduces BOM count, and improves layout simplicity.
Current-Mode Control with Slope Compensation	Enables single-pole compensation design, supports wide input/output ratios, and delivers <10 µs load transient recovery (0.15 A ↔ 2 A).
Comprehensive Protection Suite	Includes cycle-by-cycle OCP (4.4 A HS limit), thermal shutdown (+160°C), UVLO (4.05 V), and overvoltage lockout (1.1 V on FB).
Green Packaging	SO-8EP meets RoHS 2 (2011/65/EU), halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb), with lead-free terminations.

Applications

Gaming Console Power

FPGA Core Supply

Use Scenario: Primary 1.2 V/1.8 V/3.3 V rail for GPU and memory subsystems in compact gaming consoles with strict thermal budgets.

IC Role / Device Role / Timing Role: Synchronous buck regulator providing tightly regulated, low-noise core voltage with fast load-step response.

Use Value: 95% efficiency at 2 A reduces heat sink requirements; automated light-load mode cuts idle power by >50% vs. forced PWM.

Use Scenario: Configurable core voltage supply for Xilinx Artix-7 or Intel Cyclone V FPGAs requiring 1.2 V ±3% at up to 2 A.

IC Role / Device Role / Timing Role: Adjustable-output buck converter with precision 0.925 V reference and external compensation for dynamic load tracking.

Use Value: External soft-start (15 ms typical) prevents configuration corruption during FPGA power-up; SS pin allows sequencing control.

Flat Panel TV Backlight Driver

Network System PoE PD

Use Scenario: Intermediate 5 V or 12 V supply feeding LED driver ICs in 4K UHD TV mainboards with space-constrained layouts.

IC Role / Device Role / Timing Role: High-efficiency step-down converter operating from 12 V or 19 V adapter input to isolated LED string supplies.

Use Value: SO-8EP package enables <10 mm² footprint; 340 kHz switching allows small 10 µH inductors and 22 µF ceramic output caps.

Use Scenario: Secondary-side DC/DC stage in IEEE 802.3af/at Powered Device (PD) designs converting 37–57 V PoE input to 3.3 V/5 V system rails.

IC Role / Device Role / Timing Role: Robust buck controller handling wide VIN range with UVLO hysteresis preventing brownout oscillation on marginal PoE links.

Use Value: 18 V absolute max input withstands PoE surge transients; thermal shutdown protects against sustained overload in sealed enclosures.

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	36 V max VIN, 0.8 V ref, 2.2 MHz switching, no BST pin - uses internal bootstrap capacitor.	Better suited for higher-input industrial rails; lacks external compensation flexibility and light-load algorithm.	Select when input exceeds 18 V or board space demands ultra-high frequency; avoid if 340 kHz EMI filtering or adaptive efficiency is required.
TPS54202DRCT	6 V max VIN, 0.6 V ref, 500 kHz, integrated soft-start, no BST pin - monolithic design with internal boot cap.	Optimized for low-VIN battery-powered apps; incompatible with 12 V input without pre-regulator.	Choose only for ≤6 V input systems needing smaller solution size; not drop-in for AP65200SP-13's 4.7–18 V range or SO-8EP layout.

Compared with MP2451DT-LF-Z and TPS54202DRCT, the AP65200SP-13 uniquely balances 18 V input capability, external compensation control, and automated light-load optimization-making it optimal for mid-range consumer and embedded power where thermal headroom and efficiency across load range are critical.

Availability

AP65200SP-13 is available at Aetrix Electronics and suitable for gaming console power, FPGA core supply, and flat-panel TV intermediate rail applications requiring stable component supply and long-term production continuity.

Supply support for AP65200SP-13 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 high-efficiency power management, signal integrity, and protection solutions for consumer, industrial, and computing markets.

The AP65200SP-13 belongs to Diodes' high-integration synchronous buck converter product line, designed specifically for space-constrained, thermally sensitive consumer electronics requiring robust light-load efficiency and simplified layout.

FAQ

What is the minimum output voltage achievable with the AP65200SP-13?

The AP65200SP-13 has a fixed 0.925 V feedback reference voltage with ±25 mV tolerance over temperature. Using a standard resistor divider, the lowest stable output is 0.925 V - achieved when R2 = 0 Ω and R1 is omitted (FB tied directly to VOUT). This is confirmed in the datasheet's "Setting the Output Voltage" section and validated by the 0.925 V min spec in Electrical Characteristics.

Can the AP65200SP-13 operate without an external bootstrap capacitor?

No. The BST pin requires a minimum 0.01 µF ceramic capacitor connected between BST and SW to charge the high-side gate driver. Omitting this capacitor prevents proper high-side MOSFET turn-on, causing immediate failure to regulate. The datasheet explicitly states this in Pin Descriptions and Functional Block Diagram notes.

How does the AP65200SP-13 handle short-circuit conditions?

Under short-circuit, the AP65200SP-13 activates cycle-by-cycle current limiting at ~4.4 A (HS) and triggers fold-back mode when FB falls to 0.3 V, reducing switching frequency to 102 kHz and lowering current limit to ~3.1 A. Thermal shutdown engages at +160°C if sustained, with automatic recovery after cooling to ~120°C.

Is the AP65200SP-13 pin-compatible with other Diodes buck converters like the AP65100?

No. The AP65200SP-13 uses an 8-pin SO-8EP package with pinout: 1-BST, 2-IN, 3-SW, 4-GND, 5-FB, 6-COMP, 7-EN, 8-SS. The AP65100 uses a different pin assignment (e.g., SS and COMP swapped) and lacks BST pin functionality - direct replacement would cause functional failure and potential damage.

AP65200SP-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 4.7V

Voltage - Input (Max):: 18V

Voltage - Output (Min/Fixed):: 0.925V

Voltage - Output (Max):: 16V

Current - Output:: 2A

Frequency - Switching:: 340kHz

Synchronous Rectifier:: Yes

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO-EP

AP65200SP-13 FAQ

1.How can I place an order for AP65200SP-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP65200SP-13 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 AP65200SP-13 reliable?

The price and inventory of AP65200SP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP65200SP-13 is usually 5 days.

3.What payment methods are accepted for AP65200SP-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP65200SP-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP65200SP-13?

AP65200SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP65200SP-13 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 AP65200SP-13?

For technical support, including AP65200SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP65200SP-13 requirements.

6.How does Aetrix verify that AP65200SP-13 is sourced from the original manufacturer or authorized distributors?

All AP65200SP-13 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 AP65200SP-13 meets industry standards.

7.What is the process for return or replacement of AP65200SP-13?

All AP65200SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP65200SP-13, 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 AP65200SP-13 part is unused and in its original packaging.

Return procedure for AP65200SP-13:

1.Submit a request within 90 days.

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

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