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Contents

README

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RT6264BHGJ6F

Richtek Tech · DC-DC Converters · TSOT-23-6

RT6264BHGJ6F from Richtek Tech, in a TSOT-23-6. 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 Power ground for the converter.
2 SW output Switch node between the internal switch and the synchronous rectifier; connect to the inductor and the bootstrap capacitor.
3 VIN power_in Power input with a supply range of 4.5V to 18V; connect input bypass capacitors directly to this pin and the GND pins, with MLCC capacitance higher than 20F recommended.
4 FB input Feedback voltage input connected to the midpoint of the external feedback divider; the device regulates FB to the feedback reference, typically 0.765V.
5 EN input Enable control input: logic high enables the device and connecting it to GND disables the device.
6 BOOT passive Bootstrap capacitor connection supplying the high-side gate driver; connect a 0.1F ceramic capacitor between this pin and the SW pin.

Key specifications

Parameter Value
Manufacturer Richtek Tech
Package TSOT-23-6
Category Power Management (PMIC)
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply input operating voltage VIN 4.5 18 V 8
Under-voltage lockout threshold VUVLO 3.7 4 4.3 V 8
Shutdown current ISHDN 3 10 µA VEN = 0V 8
Enable voltage threshold (high level) VEN_H 1.16 1.25 1.34 V 8
Enable voltage threshold (low level) VEN_L 1.01 1.1 1.19 V 8
EN pin pull-down resistance REN_DN 225 450 900 kΩ VEN = 12V 8
Feedback threshold voltage VFB 758 765 772 mV VOUT = 1.05V 8
Feedback input current IFB -0.1 0 0.1 A VFB = 0.8V, TA = 25°C 8
High-side switch current limit ILIM_H 5.4 6.5 A 8
Low-side switch valley current limit ILIM_L 3.9 5.3 A 8
Minimum off-time tOFF_MIN 200 260 ns VFB = 0.5V 8
Recommended supply input voltage VIN 4.5 18 V 7
Recommended junction temperature range TJ -40 125 °C 7
Supply input voltage (absolute maximum) VIN -0.3 20 V 7
Enable voltage (absolute maximum) EN -0.3 20 V 7
Switch voltage (absolute maximum) SW -0.3 20.3 V 7
Switch voltage transient (absolute maximum) SW -5 25 V < 100ns 7
BOOT voltage (absolute maximum) BOOT -0.3 26 V 7
BOOT to SW voltage (absolute maximum) VBOOT, VSW -0.3 6 V 7
Feedback voltage (absolute maximum) FB -0.3 6 V 7
Power dissipation TSOT-23-6 (FC) PD 1.69 W TA = 25°C 7
Lead temperature (soldering) 260 °C 10 sec. 7
Junction temperature (absolute maximum) TJ 150 °C 7
Storage temperature range TSTG -65 150 °C 7
ESD susceptibility HBM HBM 2 kV Human Body Model (Note 2) 7
Junction-to-ambient thermal resistance (JEDEC) θJA 88.7 °C/W Note 4 and Note 5 7
Junction-to-case (top) thermal resistance θJC(Top) 76.9 °C/W Note 4 and Note 5 7
Junction-to-case (bottom) thermal resistance θJC(Bottom) 6 °C/W Note 4 and Note 5 7
Junction-to-ambient thermal resistance (specific EVB) θJA(EVB) 59 °C/W Note 4 and Note 5 7
Junction-to-top characterization parameter ΨJC(Top) 15.3 °C/W Note 4 and Note 5 7
Junction-to-board characterization parameter ΨJB 30.19 °C/W Note 4 and Note 5 7

CAD (KiCad official)

  • Symbol: RT6264BHGJ6F
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: rt6264bhgj6f-etched.step / rt6264bhgj6f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rt6264bhgj6f.step / rt6264bhgj6f.glb are the bare package body.

Provenance

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

  • Datasheet: Richtek Tech datasheet (25 pp, sha256 dd72b335e1083293, retrieved 2026-10-20, 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