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Contents

README

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SSP9193-28M5R

Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

SSP9193-28M5R from Shanghai Siproin Microelectronics, in a SOT-23-5. 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 Power input voltage, recommended supply input range 2.5V to 5.5V.
2 GND power_in Ground.
3 EN input Active-high chip enable, high impedance input (0V to 5.5V); needs a 100kΩ pull-down to GND when the control signal is floating.
4 BP passive Reference noise bypass; can be left floating, connect a 22nF capacitor to GND for lowest noise.
5 VOUT power_out Regulated output voltage; use an output capacitor of at least 1µF close to the pin.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

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 tolerance Vout -2 2 % 1
Output Current Iout 400 500 mA Vin-Vout=1V 3
Line Regulation △Vout1 0.3 % Vin=(Vout+1) to 5.5V, Iout=1mA 3
Load Regulation △Vout 0.6 % Vin= Vout+1V, 1.0mA≤Iout≤300mA 3
Quiescent Current Iss1 30 50 uA VEN≥1.2V, IOUT=0mA 3
Standby current ISTBY 0.01 1 uA VEN=GND, shutdown 3
EN Input Bias current 0 100 nA VEN=GND or VIN 3
EN Threshold VIL VIL 0.4 V Vin=3V to 5.5V, shutdown 3
EN Threshold VIH VIH 1.2 V Vin=3V to 5.5V, strat-up 3
Power supply rejection rate PSRR 50 dB F=10KHz 3
En input voltage VEN 0 5.5 V 2
Junction temperature range TJ -40 125 ℃ 2
Ambient temperature range TA -40 85 ℃ 2
Power supply rejection rate PSRR 70 dB F=100Hz, Cout=1uF; Iout=10mA 3
Output Noise 27 uVrms EN BW=10Hz~100KHz 3
Thermal shutdown temperature TSD 165 ℃ 3
Thermal shutdown temperature △TSD 30 ℃ 3

CAD (KiCad official)

  • Symbol: SSP9193-28M5R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ssp9193-28m5r-etched.step / ssp9193-28m5r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ssp9193-28m5r.step / ssp9193-28m5r.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Siproin Microelectronics datasheet (5 pp, sha256 5f97ec3254b903c5, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF