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SSP7903P36PR

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Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SSP7903P36PR

Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

SSP7903P36PR from Shanghai Siproin Microelectronics, in a SOT-89-3. 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 GND power_in Ground reference pin for the SOT89-3L (SSP7903PxxPx) variant; the datasheet gives no further electrical limits for this pin.
2 VIN power_in Regulator input, specified from 2.2V to 40V, with absolute maximum rating of -0.3V to 40V.
3 VOUT power_out Regulated output (3.6V for the P36 part), rated for up to 1A maximum output current and limited to VIN+0.3V in absolute maximum ratings.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-89-3
Category Power Management (PMIC)
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
Input Voltage (absolute maximum) VIN -0.3 40 V 5
Power Dissipation, SOT 89 PD 1000 mW SOT 89 package 5
Operating Ambient Temperature Topr -40 85 ℃ 5
Storage Temperature Tstg -40 125 ℃ 5
ESD Protection HBM ESD HBM 2000 V 5
Dropout Voltage VDROP 4 8 mV IOUT=1mA 5
Dropout Voltage VDROP 1000 1500 mV IOUT=1A 5
Line Regulation 0.01 0.02 ％/V VOUT(S)+2V≤VIN≤40V, IOUT=1mA 5
Load Regulation (VOUT(S)≤10V) ∆VOUT 20 80 mV VIN=VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤10V 5
Temperature Stability Ta VOUT -50 50 ppm/℃ VIN = VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃ 5
Quiescent Current (3.0≤VOUT(S)≤40V) Iq 1 1.6 3 μA no load, VIN>VOUT(S), 3.0≤VOUT(S)≤40V 5
Input Voltage VIN 2.2 40 V 5
Maximum Output Current IOUTMAX 1 A 5
Output Voltage Accuracy -2 2 % 2
Output Voltage VOUT(S) 3.6 V VIN= VOUT(S)+2V, IOUT=10mA 5
Current Limit ILIM 1.8 A VIN= VOUT(S)+2V, VOUT = 0.9 ×VOUT(S) 5
Short Circuit Current ISHORT 120 mA VIN=VOUT(S)+2V, VOUT and GND is 0Ω 5
Power Supply Rejection Ratio PSRR 73.2 dB f=10Hz, VOUT(S)=3.6V 5
Power Supply Rejection Ratio PSRR 72.2 dB f=100Hz, VOUT(S)=3.6V 5
Power Supply Rejection Ratio PSRR 54.5 dB f=1kHz, VOUT(S)=3.6V 5
Over Temperature Protection OTP 145 ℃ IOUT=10mA 5

CAD (KiCad official)

  • Symbol: SSP7903P36PR
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ssp7903p36pr-etched.step / ssp7903p36pr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ssp7903p36pr.step / ssp7903p36pr.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Siproin Microelectronics datasheet (11 pp, sha256 d1763cb71baebbea, retrieved 2026-10-18, tier: lcsc)
  • 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