# AP1501S-12RG

**HANSCHIP semiconductor** · DC-DC Converters · TO-263-5

AP1501S-12RG from HANSCHIP semiconductor, 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 | Supply input pin requiring a DC supply of 4.5 V to 40 V, with a large-value capacitor connected between the supply pin and ground to suppress supply noise. |
| 2 | OUTPUT | output | Power switch output pin, a switching node that supplies the output load, with a stated saturation voltage of 1.5 V typical at 3 A. |
| 3 | GND | power_in | Ground pin that must be routed outside the Schottky diode to output capacitor ground path so that switching current spikes do not add noise to the circuit. |
| 4 | FEEDBACK | bidirectional | Voltage feedback pin that senses the output voltage through an external resistor divider, with a feedback threshold of 1.23 V. |
| 5 | ON_OFF | input | Enable/shutdown pin where a low level turns the chip on and a high level turns it off, with thresholds of 0.8 V (on) and 1.4 V (off) and defaulting to low when floating. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | TO-263-5 |
| Category | Power Supply Chip |
| 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 regulation voltage (AP1501-12) | VOUT | 11.52 | 12 | 12.48 | V | VIN=15V~40V, ILOAD=0.2A~3A | 4 |
| Standby current | ISTBY |  | 80 | 200 | uA | VON_OFF=5V; 12V version VIN=24V, IOUT=500mA, Ta=25°C | 5 |
| Quiescent operating current | IQ |  | 2 | 10 | mA | VON_OFF=0V, VFB=VIN; 12V version VIN=24V, IOUT=500mA, Ta=25°C | 5 |
| Oscillator frequency | FOSC | 127 | 150 | 173 | KHz | 12V version VIN=24V, IOUT=500mA, Ta=25°C | 5 |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0; 12V version VIN=24V, IOUT=500mA, Ta=25°C | 5 |
| ON_OFF pin threshold, high (control off) | VON_OFF | 1.4 |  |  | V | Control off (high level) | 5 |
| ON_OFF pin threshold, low (control on) | VON_OFF |  |  | 0.8 | V | Control on (low level) | 5 |
| ON_OFF pin leakage current (OFF) | IH |  | 5 | 30 | A | VON_OFF=2.5V (OFF) | 5 |
| ON_OFF pin leakage current (ON) | IL |  | 0.2 | 10 | A | VON_OFF=0.5V (ON) | 5 |
| Saturation voltage | VCE |  | 1.3 | 1.5 | V | VFB=0V, IOUT=3A | 5 |
| Maximum duty cycle | DMAX |  | 100 |  | % | VFB=0V | 5 |
| Input operating voltage | VIN | 4.5 |  | 40 | V | 12V version VIN=24V, IOUT=500mA, Ta=25°C | 5 |
| Input voltage | VIN | -0.3 |  | 45 | V |  | 3 |
| Voltage feedback pin voltage | VFB | -0.3 |  |  | V | Upper limit printed as VIN | 3 |
| ON_OFF pin voltage | VON_OFF | -0.3 |  |  | V | Upper limit printed as VIN | 3 |
| Power switch output pin voltage | VOUT_PUT | -0.3 |  |  | V | Upper limit printed as VIN | 3 |
| Operating junction temperature | TJ | -40 |  | 125 | °C |  | 3 |
| Storage temperature | TSTG | -65 |  | 150 | °C |  | 3 |
| Lead soldering temperature | TLEAD |  |  | 245 | °C | 10 s | 3 |
| ESD capability (human body model) | ESD |  | 2000 |  | V | Human body model | 3 |
| Input voltage (recommended) | VIN | 5 |  | 40 | V |  | 3 |
| Operating junction temperature range (recommended) | TJ | -40 |  | 125 | °C |  | 3 |
| Thermal resistance junction to ambient | RJA |  | 50 |  | °C/W | No heatsink, TO220 and TO263 packages | 5 |

## CAD (KiCad official)

- Symbol: `AP1501S-12RG`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `ap1501s-12rg-etched.step` / `ap1501s-12rg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap1501s-12rg.step` / `ap1501s-12rg.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HANSCHIP semiconductor datasheet](docs/ap1501s-12rg-datasheet.pdf) (10 pp, sha256 `abb99435849c024d`, retrieved 2026-11-05, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/ap1501s-12rg-datasheet.pdf)