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Contents

README

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RT8008GB

Richtek Tech · DC-DC Converters · SOT-23-5

RT8008GB 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 EN input Chip enable, active high: do not leave EN floating, and keep VEN below VIN + 0.6V.
2 GND power_in Ground; pin 2 is also the case reference used for the junction-to-case thermal resistance (θJC) measurement.
3 LX output Switching pin with high-frequency voltage swing, which should be kept small in area and away from analog components.
4 VIN power_in Power input with a 2.5V to 5.5V supply range, with the input capacitor CIN placed within 2mm of VIN.
5 FB/VOUT input Feedback input that senses a fraction of the output through the resistive divider (VREF 0.6V typ.) for adjustable versions, and is labeled VOUT in the fixed-voltage application circuit.

Key specifications

Parameter Value
Manufacturer Richtek Tech
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
Input Voltage Range VIN 2.5 5.5 V 4
Quiescent Current IQ 50 100 μA IOUT = 0mA, VFB = VREF + 5% 4
Shutdown Current ISHDN 0.1 1 μA EN = GND 4
Reference Voltage VREF 0.588 0.6 0.612 V For adjustable output voltage 4
Output Voltage Accuracy (Adjustable, VIN = VOUT + 0.2V) ΔVOUT -3 3 % VIN = VOUT + 0.2V to 5.5V, VIN ≧ 3.5V, 0A < IOUT < 600mA 4
Output Voltage Accuracy (Adjustable, VIN = VOUT + 0.4V) ΔVOUT -3 3 % VIN = VOUT + 0.4V to 5.5V, VIN ≧ 2.2V, 0A < IOUT < 600mA 4
FB Input Current IFB -50 50 nA VFB = VIN 5
P-Channel Current Limit IP(LM) 1 1.8 A VIN = 2.5V to 5.5 V 5
EN High-Level Input Voltage VENH 1.5 V VIN = 2.5V to 5.5V 5
EN Low-Level Input Voltage VENL 0.4 V VIN = 2.5V to 5.5V 5
Oscillator Frequency fOSC 1.2 1.5 1.8 MHz VIN = 3.6V, IOUT = 100mA 5
Max. Duty Cycle 100 % 5
LX Leakage Current -1 1 μA VIN = 3.6V, VLX = 0V or VLX = 3.6V 5
Supply Input Voltage (absolute maximum) VIN 6.5 V 4
Power Dissipation PD 0.4 W TA = 25°C, SOT-23-5 / TSOT-23-5 4
Junction Temperature Range (absolute maximum) TJ 150 °C 4
Storage Temperature Range TSTG -65 150 °C 4
Lead Temperature (Soldering) 260 °C Soldering, 10 sec. 4
ESD HBM (Human Body Model) 2 kV Note 3 4
ESD MM (Machine Model) 200 V Note 3 4
Package Thermal Resistance, Junction to Ambient θJA 250 °C/W SOT-23-5, JEDEC 51-3 single-layer test board, natural convection, TA = 25°C 4
Package Thermal Resistance, Junction to Case θJC 130 °C/W SOT-23-5, Pin 2 is the case position 4
Supply Input Voltage (recommended) VIN 2.5 5.5 V 4
Junction Temperature Range (recommended) TJ -40 125 °C 4
Ambient Temperature Range (recommended) TA -40 85 °C 4

CAD (KiCad official)

  • Symbol: RT8008GB
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rt8008gb-etched.step / rt8008gb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt8008gb.step / rt8008gb.glb are the bare package body.

Provenance

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

  • Datasheet: Richtek Tech datasheet (14 pp, sha256 9f22c114926c60cd, retrieved 2026-10-19, 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