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Diodes Incorporated AP65200S-13
- Part No.:
- AP65200S-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP65200S-13.pdf
- Description:
- IC REG BUCK ADJ 2A 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,809
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Product details
Overview
AP65200S-13 from Diodes Incorporated is a 340 kHz external-compensated synchronous DC/DC buck converter with integrated high- and low-side MOSFETs (RDS(ON) = 130 mΩ each), delivering up to 2 A continuous output current at up to 95% efficiency across 4.7–18 V input, adjustable 0.925–16 V output, and featuring automated light-load efficiency improvement for gaming consoles and flat-panel TV power rails.
For engineers reviewing the AP65200S-13 datasheet, AP65200S-13 pinout, AP65200S-13 application, or AP65200S-13 equivalent, key selection criteria include its current-mode control architecture, 0.925 V feedback reference, 340 kHz fixed-frequency operation, thermal shutdown at +160 °C, and SO-8EP/MSOP-8EP/U-DFN2626-10 package compatibility in distributed power systems.
Technical Context
The AP65200S-13 implements current-mode control with internal slope compensation to suppress subharmonic oscillation at half-switching frequency (170 kHz), enabling fast transient response and stable loop design using external RC compensation on the COMP pin. Its error amplifier features 800 V/V gain and 1000 µA/V transconductance, interfacing directly with a resistive feedback divider referenced to 0.925 V.
It integrates cycle-by-cycle overcurrent protection triggered by high-side MOSFET voltage sensing, with fold-back frequency reduction to 102 kHz when FB drops to 0.3 V, and includes UVLO (4.05 V rising threshold) with 250 mV hysteresis, EN lockout (2.5 V threshold), and thermal shutdown with 40 °C hysteresis (160 °C trip, 120 °C recovery).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.7 V to 18 V - supports 5 V, 12 V, and 18 V intermediate bus rails without pre-regulation. |
| Output Current | 2 A continuous - sustains full load under worst-case thermal conditions in SO-8EP (θJA = 40 °C/W). |
| Feedback Voltage | 0.925 V ±25 mV - sets output via resistor divider; enables precise 3.3 V, 5 V, or 12 V regulation with <±1% accuracy. |
| Switching Frequency | 340 kHz ±40 kHz - balances EMI performance and inductor size; allows use of standard 10 µH shielded inductors. |
| RDS(ON) | 130 mΩ (HS & LS) - minimizes conduction loss at 2 A, contributing to >90% efficiency at mid-load (1 A) with 12 VIN/3.3 VOUT. |
| Soft-Start | 15 ms with 0.1 µF capacitor - prevents inrush current into downstream capacitance; resets on EN toggle or UVLO event. |
| Thermal Shutdown | +160 °C with +40 °C hysteresis - protects die during sustained overload or poor PCB thermal design; recovers automatically at ~120 °C. |
Pinout & Package
AP65200S-13 is available in SO-8EP (exposed pad), MSOP-8EP, and U-DFN2626-10 packages. All variants share identical pin functions and electrical behavior; the exposed thermal pad (AGND) must be soldered to PCB GND plane with ≥80% coverage for rated thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST | Bootstrap Supply | Drives high-side MOSFET gate; requires ≥0.01 µF ceramic capacitor between BST and SW to sustain gate drive during HS conduction. |
| IN | Main Power Input | Supplies IC bias and switching power; must be bypassed with ≥10 µF low-ESR capacitor to GND near pin. |
| SW | Switch Node | Connects to inductor input; carries high di/dt; routing must minimize loop area to reduce EMI and voltage spikes. |
| GND | Power Ground | Primary return path for power switches; connects to AGND pad in EP packages for thermal and noise integrity. |
| FB | Feedback Input | Senses output via resistive divider; 0.925 V reference enables accurate VOUT setting with minimal divider current. |
| COMP | Compensation Node | Output of transconductance error amplifier; external RC network sets loop stability and transient response. |
| EN | Enable Control | Active-high digital input; 0.8 V rising threshold and 2.5 V lockout enable robust sequencing with 100 kΩ pull-up. |
| SS | Soft-Start Timing | Accepts external capacitor to set startup ramp time; floating disables soft-start; 6 µA internal current source. |
Key Features
| Feature | Design Value |
|---|---|
| Automated Light-Load Efficiency Mode | Reduces switching frequency and gate drive losses below ~300 mA load, maintaining >85% efficiency at 10 mA output. |
| Integrated Dual MOSFETs | Matched 130 mΩ RDS(ON) high- and low-side N-channel devices eliminate external FET selection and layout complexity. |
| Current-Mode Control with Slope Compensation | Enables stable operation at duty cycles >50%, supports wide input/output ratios, and simplifies compensation design. |
| Robust Protection Suite | Includes cycle-by-cycle OCP, thermal shutdown with hysteresis, UVLO with 250 mV hysteresis, and FB overvoltage clamp. |
| External Soft-Start Programmability | Capacitor-controlled ramp (e.g., 0.1 µF → 15 ms) prevents output overshoot and inrush stress on input capacitors and load. |
Applications
| Gaming Console Power Rails | Flat-Panel TV Backlight & Logic Supplies |
|---|---|
|
Use Scenario: Powers FPGA, DDR memory, and SoC core rails in compact gaming console mainboards where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1.2 V/2 A and 3.3 V/2 A from 12 V intermediate bus with tight transient response. Use Value: Integrated MOSFETs and 340 kHz switching reduce board area by >30% vs. controller+FET solutions; light-load mode extends standby battery life. |
Use Scenario: Supplies 5 V logic and 12 V backlight drivers in LED TV power subsystems requiring high reliability and low acoustic noise. IC Role / Device Role / Timing Role: Secondary buck stage stepping down 18 V bus to 5 V/2 A for TCON and MCU, operating in continuous PWM above 300 mA. Use Value: 95% peak efficiency reduces heat sink requirements; SO-8EP package enables direct thermal coupling to chassis ground. |
| Distributed FPGA/DSP Power | Green Consumer Electronics |
|
Use Scenario: Provides point-of-load (POL) regulation for Xilinx Artix-7 or TI C66x DSP cores in industrial edge compute modules. IC Role / Device Role / Timing Role: Synchronous buck converter with 0.925 V reference and external compensation, supporting dynamic voltage scaling (DVS) via FB divider. Use Value: Current-mode control ensures <50 µs load transient recovery; thermal shutdown prevents damage during FPGA configuration surges. |
Use Scenario: Powers USB-C PD accessories and smart speakers where RoHS, halogen-free, and low quiescent current (<0.6 mA) are mandatory. IC Role / Device Role / Timing Role: Main 3.3 V/2 A supply enabling Energy Star compliance via light-load efficiency mode and <3 µA shutdown current. Use Value: Fully lead-free, antimony-free, and halogen-free construction meets IEC 61249-2-21; 0.3 µA shutdown current extends battery runtime. |
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 (Monolithic Power) | 36 V max input, 0.8 V ref, 2 A, 340 kHz, no BST pin - uses internal bootstrap capacitor. | Lacks BST pin flexibility; less suitable for high-duty-cycle (>85%) designs requiring external boost cap. | Prefer for 24 V input systems where BST management adds complexity; verify loop stability with different compensation topology. |
| TPS54202DDCR (Texas Instruments) | 6 V max input, 0.6 V ref, 2 A, 500 kHz, integrated soft-start, no external COMP node. | Lower VIN range limits use to 5 V bus only; fixed compensation reduces tuning flexibility for custom LC filters. | Select when 5 V input dominates and simplified layout outweighs need for external loop optimization. |
Compared with MP2451DT-LF-Z and TPS54202DDCR, AP65200S-13 offers wider input range (4.7–18 V), user-adjustable compensation, and explicit BST control-critical for high-efficiency, thermally constrained 12 V POL designs-but requires more careful PCB layout for SW/BST routing and thermal pad soldering.
Availability
AP65200S-13 is available at Aetrix Electronics and suitable for gaming consoles, flat-panel TV sets and monitors, and FPGA/DSP power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant green electronics sourcing.
Supply support for AP65200S-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 power management, signal integrity, and protection solutions for consumer, industrial, and computing markets.
The AP65200 belongs to Diodes' high-efficiency synchronous buck converter product line, designed specifically for space-constrained, thermally demanding distributed power architectures in consumer electronics and display systems.
FAQ
What is the minimum recommended input voltage for reliable operation?
The AP65200S-13 has a guaranteed minimum input voltage of 4.7 V per datasheet specifications. Operation below this level triggers undervoltage lockout (UVLO) at 4.05 V rising threshold, causing the device to disable until VIN rises above 4.3 V due to 250 mV hysteresis. Sustained operation at 4.7 V is validated across temperature and load.
Can the AP65200S-13 be used with an output voltage lower than 0.925 V?
No. The internal feedback reference is fixed at 0.925 V ±25 mV, and the device regulates only when the FB pin voltage equals this threshold. Output voltages below 0.925 V cannot be achieved using the standard feedback divider configuration; no internal trimming or external override is supported.
How does the automatic light-load efficiency improvement operate?
The AP65200S-13 detects load current via internal current sense circuitry and transitions from continuous PWM mode to pulse-frequency modulation (PFM) mode below ~300 mA. This reduces switching losses and gate drive consumption, maintaining >85% efficiency at 10 mA while keeping quiescent current below 0.6 mA.
Is the SO-8EP package pin-compatible with standard SO-8?
Yes-the SO-8EP variant shares identical pin numbering and function mapping with standard SO-8, but includes an exposed thermal pad (AGND) on the underside. Pin 1–8 locations match exactly; however, the EP version requires thermal vias and GND plane connection beneath the pad to achieve θJA = 40 °C/W.
AP65200S-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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
AP65200S-13 FAQ
1.How can I place an order for AP65200S-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP65200S-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 AP65200S-13 reliable?
The price and inventory of AP65200S-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP65200S-13 is usually 5 days.
3.What payment methods are accepted for AP65200S-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP65200S-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP65200S-13?
AP65200S-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP65200S-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 AP65200S-13?
For technical support, including AP65200S-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP65200S-13 requirements.
6.How does Aetrix verify that AP65200S-13 is sourced from the original manufacturer or authorized distributors?
All AP65200S-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 AP65200S-13 meets industry standards.
7.What is the process for return or replacement of AP65200S-13?
All AP65200S-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP65200S-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 AP65200S-13 part is unused and in its original packaging.
Return procedure for AP65200S-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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