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AP1501A-K5G-13
Public Made by Adomby adom
Diodes Incorporated DC-DC Converters, TO-263-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownAP1501A-K5G-13
Diodes Incorporated · DC-DC Converters · TO-263-5
AP1501A-K5G-13 from Diodes Incorporated, in a TO-263-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | power_in | Positive operating voltage input for the switching regulator, which needs a suitable input bypass capacitor to minimize voltage transients; the recommended operating voltage is 4.5 V to 40 V. |
| 2 | Output | output | Internal switch output that switches between (VIN - VSAT) and approximately -0.5 V at a duty cycle of about VOUT/VIN, so its PCB copper area should be kept to a minimum. |
| 3 | Gnd | power_in | Circuit ground for the regulator. |
| 4 | FB | input | Senses the regulated output voltage to complete the feedback loop; for the adjustable version the feedback reference is 1.23 V. |
| 5 | SD | input | ON/OFF shutdown input: pulling it below about 1.3 V turns the regulator on and pulling it above 1.3 V (up to a maximum of 40 V) shuts it down, and leaving it open or tying it to Gnd keeps the regulator always on. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TO-263-5 |
| Category | Power Management ICs |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output feedback voltage (AP1501A-ADJ) | VFB | 1.18 | 1.23 | 1.28 | V | 5V < VIN < 40V; 0.2A < ILOAD < 5A; VOUT programmed for 3V | 7 |
| Feedback Bias Current (Adjustable version only) | IFB | 40 | 100 | nA | VFB = 1.3V (Adjustable version only) | 6 | |
| Oscillator Frequency | fOSC | 110 | 150 | 173 | kHz | 6 | |
| Saturation Voltage | VSAT | 1.5 | 1.7 | V | IOUT = 5A; No outside circuit; VFB = 0V force driver on | 6 | |
| Current Limit (peak current) | ICL | 5.5 | 6 | 7.5 | A | Peak current; No outside circuit; VFB = 0 force driver on | 6 |
| Output Leakage Current | IL | 200 | µA | Output = 0V; No outside circuit; VFB = 12V force driver off (Note 4) | 6 | ||
| Output Leakage Current (reverse) | IL | 2 | 60 | mA | Output = -1V; VIN = 40V | 6 | |
| Quiescent Current | IQ | 5 | 10 | mA | VFB = 12V force driver off | 6 | |
| Standby Quiescent Current | ISTBY | 150 | 300 | µA | SD pin = 5V; VIN = 40V | 6 | |
| SD Pin Logic Input Threshold Voltage Low (regulator ON) | VIL | 1.3 | 0.6 | V | Low (regulator ON) | 6 | |
| SD Pin Logic Input Threshold Voltage High (regulator OFF) | VIH | 2 | V | High (regulator OFF) | 6 | ||
| SD Pin Logic Input Current (OFF) | IH | 15 | 25 | µA | VLOGIC = 2.5V (OFF) | 6 | |
| SD Pin Input Current (ON) | IL | 0.02 | 5 | µA | VLOGIC = 0.5V (ON) | 6 | |
| Operating Voltage | VOP | 4.5 | 40 | V | 5 | ||
| Operating Ambient Temperature | TA | -20 | 85 | °C | 5 | ||
| ESD Machine Model Protection | ESD MM | 400 | V | Machine Model | 5 | ||
| Supply Voltage | VCC | 45 | V | 5 | |||
| SD Pin Input Voltage | VSD | -0.3 | 40 | V | 5 | ||
| FB Pin Voltage | VFB | -0.3 | 40 | V | 5 | ||
| Output Voltage to Ground | VOUT | -1 | V | 5 | |||
| Storage Temperature | TST | -65 | 150 | °C | 5 | ||
| Operating Junction Temperature | TJ | -20 | 125 | °C | 5 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 37 | °C/W | TO263-5 (Note 5) | 6 | ||
| Thermal Resistance Junction-to-Case | θJC | 6 | °C/W | TO263-5 (Note 5) | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | Internal switch. The voltage at this pin switches between (+VIN - VSAT) and approximately -0.5V, with a duty cycle of approximately VOUT / VIN. To minimize coupling to sensitive circuitry, the PC boar | 10 |
CAD (KiCad official)
- Symbol:
AP1501A-K5G-13 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
ap1501a-k5g-13-etched.step/ap1501a-k5g-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap1501a-k5g-13.step/ap1501a-k5g-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (15 pp, sha256
fa7559b35d7e0cbe, retrieved 2026-10-29, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).