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AH1117CLTR25

Public Made by Adom

by adom

BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs ah1117cltr25: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 18d ago
viewers ah1117cltr25: viewers · Ray 1mo ago
ah1117cltr25-etched.fit.json ah1117cltr25: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
ah1117cltr25-etched.glb ah1117cltr25: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 18d ago
ah1117cltr25-etched.step ah1117cltr25: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 18d ago
ah1117cltr25.glb Publish 0.1.0 · Ray 1mo ago
ah1117cltr25.kicad_mod Publish 0.1.0 · Ray 1mo ago
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package.json Publish 0.1.0 · Ray 1mo ago
page.json ah1117cltr25: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain S… · Ray 18d ago
README.md ah1117cltr25: specified limits as data (metadata.characteristics, 17 rows from the datasheet) · Ray 20d ago

AH1117CLTR25

BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

AH1117CLTR25 from BL Shanghai Belling, in a SOT-223. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground / reference pin. On fixed-voltage versions (including the -2.5V AH1117CLTR25) this pin is the device ground return. On the -ADJ variant this same pin is the ADJ feedback node (1.25V reference).
2 VOUT power_out Regulated output voltage. For the AH1117CLTR25 variant this pin delivers a fixed 2.5V ±2% at up to 1A load current. Requires a 10uF tantalum output capacitor for stability.
3 VIN power_in Unregulated supply input. Recommended input range up to 12V (absolute max 15V). For the 2.5V variant, Vin must be at least Vout + dropout (~1.3V at 1A). A 10uF tantalum bypass capacitor is recommended.
TAB VOUT power_out Thermal tab / heat-sink pad, electrically connected to VOUT (pin 2) on SOT-223. Solder to a copper pour on the PCB to lower thermal resistance (θJA ~20°C/W package alone).

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-223
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • AH1117CLTR25
  • AH1117CLTR12
  • AH1117CLTR15
  • AH1117CLTR18
  • AH1117CLTR33
  • AH1117CLTR50
  • AH1117CLTRAD
  • AH1117CLTR25COTR25
  • AH1117CLTR25COTR12
  • AH1117CLTR25COTR15
  • AH1117CLTR25COTR18
  • AH1117CLTR25COTR33
  • AH1117CLTR25COTR50
  • AH1117CLTR25COTRAD

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 (AH1117-2.5V) Vout 2.45 2.5 2.55 V 0≤Iout≤1A , Vin=4.5V 3
Line Regulation (AH1117-2.5V) ΔVout 0.1 0.2 %/V Iout=10mA, 4.0V≤Vin≤12V 3
Load Regulation (AH1117-2.5V) ΔVout 10 30 mV Vin=4.0V, 10mA≤Iout≤1A 3
Dropout Voltage Vdrop 1.23 1.3 V Iout=100mA 4
Dropout Voltage Vdrop 1.3 1.5 V Iout=1A 4
Quiescent Current (AH1117-2.5V) Iq 2 3.5 mA Vin =12V 4
Temperature Coefficient (reference) ΔV/ΔT -100 100 ppm 4
Input Voltage (max) 15 V 2
Ambient Temperature Ta -40 85 °C 2
Max Operating Junction Temperature Tj 150 °C 2
Storage Temperature Ts -40 150 °C 2
Lead Temperature 260 °C 10S 2
Input Voltage Range 12 V 2
Operating Junction Temperature Tj -20 125 °C 2
Current Limit Ilimit 1 A Vin-Vout=2V, Tj=25°C 4
Thermal Resistance Junction-to-Case (SOT-223) JC 20 °C/W 4
Package Thermal Resistance (SOT-223) 20 °C/W 2

CAD (KiCad official)

  • Symbol: AH1117CLTR25
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: ah1117cltr25-etched.step / ah1117cltr25-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ah1117cltr25.step / ah1117cltr25.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (8 pp, sha256 0d29c0ac9649066e, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF