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AS7815AT-E1

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Diodes Incorporated Linear Voltage Regulators (LDO), TO-220-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AS7815AT-E1

Diodes Incorporated · Linear Voltage Regulators (LDO) · TO-220-3

AS7815AT-E1 from Diodes Incorporated, in a TO-220-3. 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 INPUT power_in Unregulated voltage input; AS7815A recommended maximum input is 32V (absolute maximum 36V), with 0.33µF input capacitor shown in the typical application.
2 GND power_in Ground reference pin for the regulator.
3 OUTPUT power_out Regulated 15V output (14.7V to 15.3V at 25°C) delivering up to 1A, with 0.1µF output capacitor shown in the typical application.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TO-220-3
Category Power Supply Chip
Pins 3

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 Voltage VOUT 14.7 15 15.3 V TJ = +25°C 7
Output Voltage VOUT 14.4 15.6 V IOUT = 5mA to 1A, VIN = 17.9V to 30V, PD ≤ 15W 7
Line Regulation VRLINE 35 150 mV VIN = 17.9V to 30V, IOUT = 500mA, TJ = +25°C 7
Load Regulation VRLOAD 70 150 mV VIN = 23V, IOUT = 5mA to 1A, TJ = +25°C 7
Quiescent Current IQ 3.4 6 mA VIN = 23V, IOUT = 0 7
Quiescent Current Change ΔIQ 0.3 0.8 mA VIN = 17.9V to 30V, IOUT = 500mA, TJ = +25°C 7
Quiescent Current Change ΔIQ 0.08 0.5 mA IOUT = 5mA to 1A, TJ = +25°C 7
Ripple Rejection PSRR 58 dB VIN = 18.5V to 28.5V, f = 120Hz, IOUT = 500mA 7
Dropout Voltage VDROP 2 V ΔVOUT = 1%, IOUT = 1A, TJ = +25°C 7
Output Noise Voltage NO 10 µV/VO f = 10Hz to 100kHz, TA = +25°C 7
Output Resistance RO 11 mΩ f = 1kHz 7
Short-Circuit Current ISC 0.2 A VIN = 35V, TA = +25°C 7
Peak Output Current IPK 2.2 A VIN = 21V, TJ = +25°C 7
Output Voltage Temperature Coefficient ΔVOUT/ΔT 1.2 mV/°C 7
Output Voltage Temperature Coefficient (ΔVOUT/VOUT)/ΔT 80 ppm/°C 7
Thermal Resistance Junction to Case θJC 9 °C/W TO-220-3/TO-220-3 (2) 7
Input Voltage VIN 32 V AS7815A 4
Operating Junction Temperature Range TJ -40 125 °C 4
Input Voltage VIN 36 V 4
Lead Temperature TLEAD 260 °C Soldering, 10sec 4
Operating Junction Temperature TJ 150 °C 4
Storage Temperature Range TSTG -65 150 °C 4
ESD (Human Body Model) ESD 6000 V 4
ESD (Machine Model) ESD 500 V 4
Thermal Resistance Junction to Ambient θJA 60 °C/W TO-220-3 / TO-220-3 (2) 4

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 tin • Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 • Weight: 18

CAD (KiCad official)

  • Symbol: AS7815AT-E1
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3 (KiCad packages3D, STEP)
  • 3D model files: as7815at-e1-etched.step / as7815at-e1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); as7815at-e1.step / as7815at-e1.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (19 pp, sha256 a3112666d50a186d, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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