My Inquiry
My Account
Diodes Incorporated AP5001SG-13
- Part No.:
- AP5001SG-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP5001SG-13.pdf
- Description:
- IC REG BUCK ADJ 1.5A 8SOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,443
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP5001SG-13 from Diodes Incorporated is a PWM-controlled 1.5A step-down DC/DC converter with integrated P-channel MOSFET, 800kHz fixed switching frequency, 0.8V feedback reference, and 3.6V–20V input range. It delivers regulated output voltage (0.8V to VCC) for microprocessor core supplies and peripheral power in portable and AC adapter–powered systems.
For engineers reviewing the AP5001SG-13 datasheet, AP5001SG-13 pinout, AP5001SG-13 application, or AP5001SG-13 equivalent, key selection criteria include internal PMOS RDS(ON) (70–100 mΩ), soft-start time (0.3–5 ms), thermal shutdown (145°C), and support for low-ESR MLCC output capacitors.
Technical Context
The AP5001SG-13 implements a constant-frequency PWM control architecture with linear 0–100% duty cycle adjustment, enabling precise output regulation across load and line variations. Its internal error amplifier compares FB voltage against 0.8V reference, while the oscillator maintains stable 700–900kHz operation independent of input or load.
It integrates under-voltage lockout (UVLO) that disables switching below 3.3V VCC, plus current-limit and short-circuit protection that reduces switching frequency to 40–50kHz during fault conditions. Internal compensation minimizes external components, and the built-in P-MOS eliminates need for external high-side switch.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.6V to 20V - supports wide-input applications including AC adapters and 12V/19V rails. |
| Output Current Capability | 1.5A continuous - sufficient for microprocessor cores and graphics card auxiliary rails. |
| Feedback Reference Voltage | 0.8V ±2% - enables accurate output setting down to 0.8V with standard resistor dividers. |
| Switching Frequency | 800kHz typical (700–900kHz) - balances EMI, inductor size, and efficiency for compact designs. |
| RDS(ON) (Internal P-MOS) | 70–100 mΩ at VCC = 12V - reduces conduction loss and improves full-load efficiency to 86%. |
| Soft-Start Time | 0.3–5 ms - prevents output overshoot and limits inrush current during power-up. |
| Thermal Shutdown Threshold | 145°C - protects device during sustained overload or poor PCB thermal design. |
Pinout & Package
SOP-8L (Small Outline Package, 8-pin, lead-free, green molding compound), 1.27mm pitch, exposed pad not present. RoHS compliant per EU Directive Annex Notes 5 and 7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FB) | Feedback Input | Monitors output voltage via resistor divider; regulates output to 0.8V reference. |
| 2 (EN) | Enable Control | High = normal operation; Low = complete shutdown (10µA quiescent current). |
| 3 (Comp) | Compensation Node | Connects internal error amp output; external RC network sets loop stability. |
| 4 (VCC) | Bias Supply | Powers internal circuitry; must be bypassed with ≥0.1µF ceramic capacitor. |
| 5,6 (Output) | Switch Node | Drives external inductor/diode; high di/dt node requiring minimized trace area for EMI control. |
| 7,8 (VSS) | Power Ground | Dual GND pins reduce ground impedance and improve thermal dissipation in SOP-8L. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated P-channel Power MOSFET | Eliminates external high-side switch; reduces BOM count and layout complexity. |
| Internal Compensation Network | Enables stable operation with only FB, Comp, and output capacitors-no external compensation required. |
| Current Limit & Short-Circuit Protection | Reduces switching frequency to ~50kHz during overcurrent, limiting power dissipation without latch-off. |
| Low-ESR Capacitor Support | Optimized for multi-layer ceramic capacitors (MLCCs), reducing output ripple and board space vs. electrolytics. |
| Under-Voltage Lockout (UVLO) | Disables operation below 3.3V VCC; prevents erratic startup and ensures clean power sequencing. |
Applications
| Microprocessor Core Supply | Graphics Card Auxiliary Rail |
|---|---|
Use Scenario: Powers CPU/GPU core logic requiring tightly regulated 1.0–1.8V at up to 1.5A with fast transient response. IC Role / Device Role / Timing Role: Primary step-down regulator delivering low-noise, low-ripple DC supply with soft-start and UVLO. Use Value: Integrated P-MOS and 0.8V reference enable precise core voltage setting; 800kHz switching allows small 10µH inductors. | Use Scenario: Supplies memory I/O or display interface circuits on discrete GPU boards operating from 12V or 19V adapter inputs. IC Role / Device Role / Timing Role: Secondary buck converter generating 3.3V or 5V rail with enable control for power sequencing. Use Value: EN pin allows synchronized power-up/down with GPU controller; thermal shutdown protects during thermal throttling events. |
| LCD Monitor Backlight Driver Supply | ADSL Modem Power Management |
Use Scenario: Generates stable 5V or 12V bias for LED driver ICs in thin-profile LCD monitors using AC adapter input. IC Role / Device Role / Timing Role: High-efficiency intermediate regulator converting 19V adapter output to lower LED driver input voltage. Use Value: 20V max input rating accommodates unregulated wall adapters; 86% efficiency minimizes heat in sealed enclosures. | Use Scenario: Provides isolated 3.3V logic supply and 5V analog supply in DSL line cards with limited board area. IC Role / Device Role / Timing Role: Dual-rail generator using single IC with resistor-programmable outputs and independent EN control. Use Value: SOP-8L footprint and internal compensation reduce component count; low quiescent current (<10µA in shutdown) extends standby life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP3418SG-13 | Higher 2A output current, 1.2MHz switching frequency, requires external compensation. | Better suited for higher-current loads (>1.5A) and space-constrained designs needing smaller inductors. | Select when output current exceeds 1.5A or faster transient response is required. |
| MP1471GJ-Z | 1.2A rating, 1.5MHz frequency, integrated N-MOS high-side + synchronous rectifier, no external diode needed. | Higher efficiency at light loads due to synchronous rectification; lacks EN pin and soft-start programmability. | Select for ultra-compact layouts where diode elimination and light-load efficiency outweigh enable/control flexibility. |
Compared with AP3418SG-13 and MP1471GJ-Z, the AP5001SG-13 offers optimal balance of integrated P-MOS simplicity, robust 1.5A capability, and comprehensive protection features-including EN, soft-start, and frequency-foldback-making it ideal for cost-sensitive, thermally constrained mid-power applications.
Availability
AP5001SG-13 is available at Aetrix Electronics and suitable for microprocessor core supply, graphics card auxiliary rail, and ADSL modem power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP5001SG-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-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP5001 belongs to Diodes' PWM-controlled buck converter product line, designed specifically for compact, cost-effective DC/DC conversion in portable and adapter-powered equipment where integration, thermal robustness, and ease of use are critical.
FAQ
What is the minimum recommended output capacitor for stable operation?
The AP5001SG-13 is optimized for low-ESR multilayer ceramic capacitors (MLCCs). A minimum 22µF X5R/X7R MLCC is recommended at the output, as verified in the typical application circuit (C2/C4). Electrolytic capacitors are not required, and MLCCs ensure low ripple and fast transient response without series resistance degradation.
Does the AP5001SG-13 require an external Schottky diode?
Yes - the AP5001SG-13 integrates only a P-channel high-side MOSFET and requires an external Schottky diode (e.g., B230A) connected between the Output pin and VOUT to complete the buck topology. This differs from synchronous converters that integrate both high- and low-side switches.
How does the current limit protection behave during overload?
During overcurrent or short-circuit conditions, the AP5001SG-13 reduces its switching frequency from 800kHz to approximately 50kHz. This foldback behavior limits average power dissipation and prevents thermal runaway while maintaining regulation attempt - unlike latch-off protection, it permits automatic recovery once the fault clears.
Can the AP5001SG-13 operate with a 2.5V input supply?
No - the absolute minimum input voltage is 3.6V per datasheet specifications. Operation below this violates the recommended operating condition and triggers under-voltage lockout (UVLO), disabling switching. The UVLO threshold is 3.3V (off) with hysteresis; normal operation resumes only above 3.5V VCC.
AP5001SG-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):
- 3.6V
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 20V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 800kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOP
AP5001SG-13 FAQ
1.How can I place an order for AP5001SG-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP5001SG-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 AP5001SG-13 reliable?
The price and inventory of AP5001SG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP5001SG-13 is usually 5 days.
3.What payment methods are accepted for AP5001SG-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP5001SG-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP5001SG-13?
AP5001SG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP5001SG-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 AP5001SG-13?
For technical support, including AP5001SG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP5001SG-13 requirements.
6.How does Aetrix verify that AP5001SG-13 is sourced from the original manufacturer or authorized distributors?
All AP5001SG-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 AP5001SG-13 meets industry standards.
7.What is the process for return or replacement of AP5001SG-13?
All AP5001SG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP5001SG-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 AP5001SG-13 part is unused and in its original packaging.
Return procedure for AP5001SG-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP5001SG-13 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
