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RT9193-33GB

Public Made by Adom

by adom

Richtek Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

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RT9193-33GB

Richtek Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

RT9193-33GB from Richtek Tech, in a SOT-23-5. 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 VIN power_in Power input voltage. Recommended operating range 2.5V to 5.5V (6V absolute max). Bypass with a 1uF X7R capacitor to GND close to the pin.
2 GND power_in Ground return for the regulator. Provides the reference for VIN, VOUT and the internal reference.
3 EN input Chip Enable (active-high, TTL-logic). Input range 0V to 5.5V; VIH >= 1.2V to enable, VIL <= 0.4V for shutdown. This pin is high impedance - add a ~100 kOhm pull-down to GND when the drive signal may float.
4 BP passive Reference noise bypass. May be left floating; for lowest output noise (typ 100 uVrms), connect a 22nF capacitor from BP to GND.
5 VOUT power_out Regulated output voltage (3.3V for the -33 option), 300mA max. Requires only a 1uF X7R output capacitor for stability; low-ESR ceramics acceptable.

Key specifications

Parameter Value
Manufacturer Richtek Tech
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • RT9193-33GBB
  • RT9193-33GBU5
  • RT9193-33GBJ5
  • RT9193-33GBQW
  • RT9193-33GBF

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 ΔVOUT -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 ΔVLINE 0.3 % VIN = (VOUT + 1V) to 5.5V, IOUT = 1mA 3
Load Regulation ΔVLOAD 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 Voltage VIL 0.4 V VIN = 3V to 5.5V, Shutdown 4
EN Threshold Logic-High Voltage VIH 1.2 V VIN = 3V to 5.5V, Start-Up 4
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
Supply Input Voltage VIN 6 V 3
Power Dissipation PD 400 mW TA = 25°C, TSOT-23-5/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 HBM (Human Body Model) 3
ESD Susceptibility MM 200 V MM (Machine Model) 3
Package Thermal Resistance Junction-to-Ambient θJA 250 °C/W TSOT-23-5/SOT-23-5, JEDEC 51-3 test board 3
Package Thermal Resistance Junction-to-Case θJC 25 °C/W TSOT-23-5/SOT-23-5 3

CAD (KiCad official)

  • Symbol: RT9193-33GB
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rt9193-33gb-etched.step / rt9193-33gb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt9193-33gb.step / rt9193-33gb.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
rt9193-33gb.step 85 KB You want the bare part, or you mark your own boards.
rt9193-33gb-etched.step 2.4 MB You want the part with RT9193-33GB already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 566 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Richtek Tech datasheet (14 pp, sha256 bf255aae29036038, retrieved 2026-08-17, tier: manufacturer)
  • 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