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Diodes Incorporated AP62150WU-7
- Part No.:
- AP62150WU-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
AP62150WU-7.pdf
- Description:
- IC REG BUCK ADJ 1.5A TSOT26
- Quantity:
- Payment:
- Shipping:
Inventory:64,751
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Product details
Overview
AP62150WU-7 from Diodes Incorporated is a 1.5A synchronous buck converter with 4.2V–18V input range, integrated 90mΩ high-side and 65mΩ low-side MOSFETs, 1.3MHz switching frequency (VIN=12V, VOUT=5V), 135μA quiescent current in PFM mode, and proprietary EMI-optimized gate driver. It delivers regulated 0.8V–7V output for FPGA/DSP core supplies and consumer power rails.
For engineers reviewing the AP62150WU-7 datasheet, AP62150WU-7 pinout, AP62150WU-7 application, or AP62150WU-7 equivalent, key selection criteria include its COT control architecture for fast transient response, dual-package availability (SOT563/TSOT26), valley-current-limit OCP, thermal shutdown at +160°C, and EN-programmable UVLO.
Technical Context
The AP62150WU-7 employs Constant On-Time (COT) control to achieve pseudo-fixed-frequency operation with input-voltage-dependent on-time (tON = VOUT/(VIN × fSW)) and a fixed 200ns minimum off-time. Its multi-level gate driver suppresses SW node ringing without degrading rise/fall times, directly reducing high-frequency radiated EMI.
It operates in both Continuous Conduction Mode (CCM) and Pulse Frequency Modulation (PFM) at light load, delivering 135μA IQ under no-load conditions. Protection includes cycle-by-cycle valley current limiting (2.1–3.5A), undervoltage lockout (3.6V falling, 3.9–4.15V rising), and thermal shutdown with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.2V to 18V DC - supports 5V/12V distributed bus inputs and automotive battery-supplied systems. |
| IOUT Max | 1.5A continuous - sufficient for FPGA I/O banks, DSP cores, and ASIC auxiliary rails. |
| fSW | 1.3MHz typical (VIN=12V, VOUT=5V) - enables compact LC filter design with ≤3.3μH inductors. |
| IQ | 135μA in PFM mode - extends battery runtime in always-on consumer devices. |
| VFB Accuracy | 0.800V ±1% at TA=+25°C - ensures tight output regulation across temperature and load. |
| RDS(ON) HS/LS | 90mΩ / 65mΩ - minimizes conduction loss and improves full-load efficiency (>90% at 1A). |
| UVLO Threshold | Falling: 3.6V, Rising: 3.9–4.15V - prevents erratic startup during brownout or cold-cranking. |
Pinout & Package
AP62150WU-7 is available in TSOT26 (Standard) - a 6-pin, 1.6mm × 2.9mm, 0.95mm height surface-mount package with exposed thermal pad. Pin mapping is validated per Diodes DS42700 Rev. 3-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Supplies IC bias and high/low-side MOSFETs; requires ≥10μF ceramic bypass to GND near pin. |
| SW | Switching Node | Connects to inductor input; carries high di/dt; routing must minimize loop area for EMI control. |
| GND | Power Ground | Primary return path for VIN, SW, BST, and FB; ties to PCB thermal pad for thermal performance. |
| BST | Bootstrap Supply | Drives high-side MOSFET gate via 100nF capacitor to SW; critical for gate drive strength and efficiency. |
| EN | Enable Control | Digital input (1.2V threshold); floating enables auto-start; external RC delays startup for rail sequencing. |
| FB | Feedback Sense | Monitors resistive divider (R1/R2) at output; sets VOUT = 0.8V × (1 + R1/R2); high-impedance input. |
Key Features
| Feature | Design Value |
|---|---|
| Constant On-Time (COT) Control | Enables <10μs load transient recovery and eliminates external compensation components. |
| Proprietary Ringing-Free Gate Driver | Reduces high-frequency EMI radiation without sacrificing MOSFET switching speed or efficiency. |
| Valley Current Limit Protection | 2.1–3.5A cycle-by-cycle limit sensed across low-side MOSFET; prevents inductor saturation. |
| Programmable UVLO via EN Pin | External resistor divider adjusts VIN turn-on/off thresholds beyond default 3.6V/3.9V points. |
| Thermal Shutdown with Hysteresis | +160°C trip, +140°C recovery - prevents thermal runaway while enabling safe automatic restart. |
Applications
| FPGA Core Power | Flat Panel TV Logic Rails |
|---|---|
|
Use Scenario: Powering 0.85V–1.2V core domains of Xilinx Artix-7 or Intel Cyclone V FPGAs with dynamic current demand up to 1.2A. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise core voltage with fast load-step response. Use Value: COT control achieves <15μs output recovery from 0.5A→1.2A step, minimizing voltage droop below ±3%. |
Use Scenario: Generating 3.3V and 5V logic supplies for mainboard MCU, TCON, and HDMI interface in 32–65″ LCD TVs. IC Role / Device Role / Timing Role: Secondary DC-DC converter stepping down 12V bus to stable logic rails with low standby IQ. Use Value: 135μA quiescent current enables <10mW no-load power loss, meeting Energy Star standby requirements. |
| Home Audio DSP Supply | Gaming Console I/O Rail |
|
Use Scenario: Delivering clean 1.8V supply to TI TAS57xx audio DSPs in smart soundbars with variable processing load. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator with EMI-optimized switching for noise-sensitive analog sections. Use Value: Proprietary gate driver reduces 30–100MHz radiated emissions by >6dB, easing EMC certification. |
Use Scenario: Providing 1.1V/1.8V I/O voltage to AMD/Qualcomm SoCs in portable gaming handhelds powered by 2S Li-ion packs. IC Role / Device Role / Timing Role: Input-flexible buck converter supporting 8.4V–12.6V battery input with thermal foldback. Use Value: Dual-package option (TSOT26) allows layout optimization for thermal dissipation in space-constrained handheld PCBs. |
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) | Higher IQ (260μA), fixed 2MHz fSW, no programmable UVLO, 2A rating. | Less suitable for ultra-low-power standby; better for higher-frequency, smaller-inductor designs. | Select when board space demands <2.0MHz operation and 2A headroom is required over efficiency. |
| TPS561201 (Texas Instruments) | Adaptive COT control, 1.2A rating, 1.4V–5.5V VOUT range, integrated soft-start ramp. | Limited max input (17V) and output current; lacks BST pin configuration flexibility. | Prefer when TI ecosystem support and simplified enable sequencing outweigh need for 18V input or 1.5A output. |
Compared with MP2451DT-LF-Z and TPS561201, AP62150WU-7 offers superior EMI performance via its proprietary gate driver, wider input range (up to 18V), lower quiescent current (135μA vs. 260μA/150μA), and direct EN-based UVLO programming-making it optimal for cost-sensitive, noise-critical consumer power rails.
Availability
AP62150WU-7 is available at Aetrix Electronics and suitable for FPGA core supplies, flat-panel TV logic rails, and home audio DSP power delivery requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AP62150WU-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 AP62150 belongs to Diodes' high-efficiency, EMI-optimized buck converter product line, designed specifically for consumer, computing, and industrial point-of-load applications demanding low IQ, fast transient response, and robust protection.
FAQ
What is the recommended input capacitor for AP62150WU-7?
Diodes recommends a minimum 10μF X5R/X7R ceramic capacitor placed as close as possible to the VIN and GND pins. For improved ripple suppression and EMI performance, a parallel combination of 10μF + 100nF is specified in the typical application circuit. The capacitor must be rated for ≥25V DC and located within 2mm of the IC to minimize high-frequency loop inductance.
Can AP62150WU-7 operate with an output voltage below 0.8V?
No. The internal reference voltage is fixed at 0.800V ±1%, and the feedback network is designed to scale this reference upward only. Output voltages less than 0.8V cannot be achieved because the FB pin senses a divided version of VOUT, and the controller regulates to maintain VFB = 0.8V. Attempting sub-0.8V operation violates the device's functional specification and will result in regulation failure.
How does the AP62150WU-7 handle short-circuit conditions?
Under output short, the AP62150WU-7 enters hiccup mode after 2.5ms of sustained valley current limit triggering. Both MOSFETs shut off for 20ms, then attempt soft-start recovery. This limits average power dissipation and prevents thermal damage. Recovery is automatic and does not require external reset; however, repeated shorts may cause thermal shutdown if board-level heatsinking is inadequate.
Is AP62150WU-7 qualified for automotive applications?
AP62150WU-7 is not AEC-Q100 qualified. While it operates across –40°C to +125°C junction temperature and includes automotive-relevant protections (UVLO, OCP, TSD), Diodes explicitly states that automotive-grade variants require separate qualification, PPAP capability, and IATF 16949 manufacturing. Customers needing automotive use must contact Diodes directly for qualified alternatives such as the AP62200 series.
AP62150WU-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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:
- 1.5A
- Frequency - Switching:
- 1.3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-26
AP62150WU-7 FAQ
1.How can I place an order for AP62150WU-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP62150WU-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 AP62150WU-7 reliable?
The price and inventory of AP62150WU-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP62150WU-7 is usually 5 days.
3.What payment methods are accepted for AP62150WU-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP62150WU-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP62150WU-7?
AP62150WU-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP62150WU-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 AP62150WU-7?
For technical support, including AP62150WU-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP62150WU-7 requirements.
6.How does Aetrix verify that AP62150WU-7 is sourced from the original manufacturer or authorized distributors?
All AP62150WU-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 AP62150WU-7 meets industry standards.
7.What is the process for return or replacement of AP62150WU-7?
All AP62150WU-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP62150WU-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 AP62150WU-7 part is unused and in its original packaging.
Return procedure for AP62150WU-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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