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Contents

README

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TPL740F33-5TR

3PEAK · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

TPL740F33-5TR from 3PEAK, 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 IN power_in Input voltage pin; bypass IN to GND with a 1 μF or greater capacitor.
2 GND power_in Ground reference pin; connect the GND pin directly to the PCB ground plane.
3 EN input Regulator enable pin; drive EN high to turn the regulator on and low to turn it off, or connect EN to IN directly for automatic startup.
4 NC unconnected No connection on the fixed-output version; this pin is FB (feedback) only on the adjustable version.
5 OUT power_out Regulated output voltage pin; bypass OUT to GND with a 2.2 μF or greater capacitor.

Key specifications

Parameter Value
Manufacturer 3PEAK
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 2.4 5.5 V 8
Under-voltage lock-out threshold (VIN rising) UVLO 1.5 1.9 2.4 V VIN rising 8
Ground pin current IGND 49 200 µA IOUT = 0 mA 8
Ground pin current IGND 200 2000 µA IOUT = 100 mA 8
Shutdown current ISHDN 0.02 2 nA EN = GND 8
EN logic-input high level (enable) VIH(EN) 1.2 V 8
EN logic-input low level (disable) VIL(EN) 0 0.4 V 8
EN pin leakage current IEN 1 3 µA EN = 5 V 8
Output voltage accuracy VOUT -1 1 % TJ = +25°C 8
Output voltage accuracy VOUT -2 2 % −40°C ≤ TJ ≤ +125°C 8
Line regulation ΔVOUT 1 5 mV VIN = 2.4 V or VOUT(NOM) + 0.5 V to 5.5 V, or VIN ≥2.4 V, IOUT = 1 mA 8
Load regulation 20 60 mV IOUT = 1 mA to 500 mA 8
Dropout voltage VDO 75 100 mV VIN = 0.98 × VOUT(NOM), IOUT = 100 mA 8
Dropout voltage VDO 200 250 mV VIN = 0.98 × VOUT(NOM), IOUT = 300 mA 8
Dropout voltage VDO 300 400 mV VIN = 0.98 × VOUT(NOM), IOUT = 500 mA 8
Output current IOUT 0 500 mA VOUT in regulation 8
Output current limit ICL 550 1000 1400 mA VOUT = 0.9 × VOUT(NOM) 8
Power supply rejection ratio (fixed version) PSRR 60 dB IOUT = 100 mA, f = 1 kHz 9
Power supply rejection ratio (fixed version) PSRR 40 dB IOUT = 100 mA, f = 100 kHz 9
Output noise voltage (fixed version) VN 130 µVRMS IOUT = 100 mA, BW = 100 Hz to 80 kHz 9
Start-up time (fixed version) TSTR 150 µs IOUT = 500 mA, COUT = 2.2 μF 9
Thermal shutdown temperature TSD 170 ºC 9
Thermal shutdown hysteresis 30 ºC 9
Hysteresis (UVLO) 200 mV 8
VIN, VEN input voltage VIN, VEN -0.3 6 V 7
VOUT output voltage VOUT -0.3 6 V 7
Junction temperature range TJ -40 150 °C 7
Storage temperature range TSTG -65 150 °C 7
Lead temperature (soldering 10 sec) TL 260 °C Soldering 10 sec 7
Input voltage VIN 2.4 5.5 V 7
Enable voltage VEN 0 V 7
Output voltage VOUT 0 5 V 7
Output current IOUT 0 500 mA 7
Operating junction temperature range TJ -40 125 °C 7
Junction-to-ambient thermal resistance (SOT23-5) θJA 280 °C/W SOT23-5 package 7
Junction-to-case thermal resistance (SOT23-5) θJC 62 °C/W SOT23-5 package 7

CAD (KiCad official)

  • Symbol: TPL740F33-5TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tpl740f33-5tr-etched.step / tpl740f33-5tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpl740f33-5tr.step / tpl740f33-5tr.glb are the bare package body.

Provenance

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

  • Datasheet: 3PEAK datasheet (22 pp, sha256 07a4d48905a56e33, retrieved 2026-10-09, 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