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Contents

README

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RT9193-15GB

Richtek Tech · Linear Voltage Regulators (LDO) · SOT-23-5

RT9193-15GB from Richtek Tech, 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, operating range 2.5V to 5.5V (6V absolute maximum).
2 GND power_in Ground.
3 EN input Active-high chip enable, high impedance input; needs a 100k pull-down to GND if the control signal floats, logic high above 1.2V and shutdown below 0.4V.
4 BP passive Reference noise bypass pin that may be left floating; connect a 22nF capacitor to GND for lowest noise.
5 VOUT power_out Regulated output voltage (1.5V for the -15 option), up to 300mA, stable with a 1µF or larger ceramic output capacitor.

Key specifications

Parameter Value
Manufacturer Richtek Tech
Package SOT-23-5
Category Power Supply Chip
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 Accuracy VOUT -2 2 % IOUT = 1mA 3
Current Limit ILIM 360 400 mA RLOAD = 1Ω 3
Quiescent Current IQ 90 130 µA VEN ≥ 1.2V, IOUT = 0mA 3
Dropout Voltage VDROP 170 200 mV IOUT = 200mA, VOUT > 2.8V 3
Dropout Voltage VDROP 220 300 mV IOUT = 300mA, VOUT > 2.8V 3
Line Regulation VLINE 0.3 % VIN = (VOUT + 1V) to 5.5V, IOUT = 1mA 3
Load Regulation VLOAD 0.6 % 1mA ≤ IOUT ≤ 300mA 3
Standby Current ISTBY 0.01 1 µA VEN = GND, Shutdown 3
EN Input Bias Current IIBSD 0 100 nA VEN = GND or VIN 4
EN Threshold Logic-Low VIL 0.4 V VIN = 3V to 5.5V, Shutdown 4
EN Threshold Logic-High VIH 1.2 V VIN = 3V to 5.5V, Start-Up 4
Output Noise Voltage eNO 100 µVRMS 10Hz to 100kHz, IOUT = 200mA, COUT = 1µF 4
PSRR PSRR 70 dB f = 100Hz, COUT = 1µF, IOUT = 10mA 4
PSRR PSRR 50 dB f = 10kHz, COUT = 1µF, IOUT = 10mA 4
Thermal Shutdown Temperature TSD 165 °C 4
Thermal Shutdown Hysteresis TSD 30 °C 4
Supply Input Voltage VIN 6 V 3
Power Dissipation PD 400 mW TA = 25°C, SOT-23-5 3
Junction Temperature TJ 150 °C 3
Lead Temperature 260 °C Soldering, 10 sec. 3
Storage Temperature Range TSTG -65 150 °C 3
ESD Susceptibility HBM 2 kV Human Body Model 3
ESD Susceptibility MM 200 V Machine Model 3
Supply Input Voltage VIN 2.5 5.5 V 3
EN Input Voltage VEN 0 5.5 V 3
Junction Temperature Range TJ -40 125 °C 3
Ambient Temperature Range TA -40 85 °C 3
Thermal Resistance Junction to Ambient θJA 250 °C/W SOT-23-5, JEDEC 51-3 single-layer board 3
Thermal Resistance Junction to Case θJC 25 °C/W SOT-23-5 3

CAD (KiCad official)

  • Symbol: RT9193-15GB
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rt9193-15gb-etched.step / rt9193-15gb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt9193-15gb.step / rt9193-15gb.glb are the bare package body.

Provenance

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

  • Datasheet: Richtek Tech datasheet (14 pp, sha256 685fa6a4b9e767f1, retrieved 2026-10-23, 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