component
AP1509-SG-13
Public Made by Adomby adom
Diodes Incorporated DC-DC Converters, SOIC-8-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| ap1509-sg-13-etched.step | 17d ago |
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AP1509-SG-13
Diodes Incorporated · DC-DC Converters · SOIC-8-150mil
AP1509-SG-13 from Diodes Incorporated, in a SOIC-8-150mil. 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 | Operating voltage input (4.5V to 22V recommended) requiring a suitable input bypass capacitor to minimize voltage transients and supply switching currents. |
| 2 | Output | output | Internal switching output that swings between (+VIN - VSAT) and about -0.5V with a duty cycle of about VOUT/VIN, and its PCB copper area should be minimized. |
| 3 | FB | input | Output voltage feedback pin that senses the regulated output voltage to complete the feedback loop (adjustable version reference VFB = 1.23V). |
| 4 | SD | input | ON/OFF shutdown input where below about 1.3V turns the regulator on and above 1.3V (up to 18V maximum) shuts it down, and it can be wired to ground if unused. |
| 5 | GND | power_in | Circuit ground. |
| 6 | GND | power_in | Circuit ground. |
| 7 | GND | power_in | Circuit ground. |
| 8 | GND | power_in | Circuit ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOIC-8-150mil |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VFB Output Feedback (25°C) | VFB | 1.193 | 1.23 | 1.267 | V | 4.5V < VIN < 22V; 0.2A < ILOAD < 2A; VOUT Programmed for 3V | 5 |
| VFB Output Feedback (full operating temperature range) | VFB | 1.18 | 1.28 | V | 4.5V < VIN < 22V; 0.2A < ILOAD < 2A; VOUT Programmed for 3V | 5 | |
| Efficiency (ADJ) | Ƞ | 76 | 76 | % | VIN = 12V, ILOAD=2A | 5 | |
| Oscillator Frequency (25°C) | FOSC | 127 | 150 | 173 | kHz | 5 | |
| Oscillator Frequency (full operating temperature range) | FOSC | 110 | 173 | kHz | 5 | ||
| Oscillator Frequency of Short Circuit Protect | FSCP | 10 | 30 | 50 | kHz | When Current Limit Occurred and VFB < 0.5V, Ta = 25°C | 5 |
| Saturation Voltage (25°C) | VSAT | 1.25 | 1.4 | V | IOUT = 2A; No Outside Circuit; VFB = 0V Force Driver On | 5 | |
| Saturation Voltage (full operating temperature range) | VSAT | 1.5 | V | IOUT = 2A; No Outside Circuit; VFB = 0V Force Driver On | 5 | ||
| Current Limit Peak Current | ICL | 3 | A | No Outside Circuit; VFB = 0V Force Driver On | 5 | ||
| Output Leakage Current | IL | -200 | µA | Output = 0; No Outside Circuit; VFB = 12V Force Driver Off | 5 | ||
| Output Leakage Current | IL | -5 | mA | Output = -1; VIN = 22V | 5 | ||
| Quiescent Current | IQ | 5 | 10 | mA | VFB = 12V Force Driver Off | 5 | |
| Standby Quiescent Current (25°C) | ISTBY | 70 | 150 | µA | ON/OFF pin = 5V; VIN = 22V | 5 | |
| Standby Quiescent Current (full operating temperature range) | ISTBY | 200 | µA | ON/OFF pin = 5V; VIN = 22V | 5 | ||
| ON/OFF Pin Logic Input Threshold Voltage | VIL | 1.3 | 0.6 | V | Low (Regulator ON) | 5 | |
| ON/OFF Pin Logic Input Threshold Voltage | VIH | 2 | V | High (Regulator OFF) | 5 | ||
| ON/OFF Pin Logic Input Current | IH | -0.01 | µA | VLOGIC = 2.5V (OFF) | 5 | ||
| ON/OFF Pin Input Current | IL | -0.1 | -1 | µA | VLOGIC = 0.5V (ON) | 5 | |
| Feedback Bias Current (25°C) | IFB | -10 | -50 | nA | VFB = 1.3V (Adjustable Version Only) | 5 | |
| Feedback Bias Current (full operating temperature range) | IFB | -100 | nA | VFB = 1.3V (Adjustable Version Only) | 5 | ||
| Operating Voltage | VOP | 4.5 | 22 | V | 4 | ||
| Output Current | IOUT | 0 | 2 | A | 4 | ||
| Operating Ambient Temperature | TA | -20 | 85 | °C | 4 | ||
| Supply Voltage | VIN | 24 | V | 4 | |||
| ON/OFF Pin Input Voltage | VSD | -0.3 | 18 | V | 4 | ||
| Feedback Pin Voltage | VFB | -0.3 | 18 | V | 4 | ||
| Output Voltage to Ground | VOUT | -1 | V | 4 | |||
| ESD HBM Human Body Model ESD Protection | ESD | 2 | KV | 4 | |||
| ESD MM Machine Model ESD Protection | ESD | 200 | V | 4 | |||
| Storage Temperature | TST | -65 | 150 | °C | 4 | ||
| Operating Junction Temperature | TJ | -40 | 125 | °C | 4 | ||
| Thermal Resistance Junction to Case (SO-8) | ϴJA | 15 | °C/W | 5 | |||
| Thermal Resistance Junction to Ambient with copper area of approximately 3in2 (SO-8) | ϴJC | 70 | °C/W | with a Copper Area of Approximately 3in2 | 5 |
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 PCB copper | 9 |
CAD (KiCad official)
- Symbol:
AP1509-SG-13 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8-150mil (KiCad packages3D, STEP)
- 3D model files:
ap1509-sg-13-etched.step/ap1509-sg-13-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap1509-sg-13.step/ap1509-sg-13.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (12 pp, sha256
736e1f216a8fa351, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).