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LT8301ES5#TRMPBF

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Analog Devices DC-DC Converters, TSOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LT8301ES5#TRMPBF

Analog Devices · DC-DC Converters · TSOT-23-5

LT8301ES5#TRMPBF from Analog Devices, in a TSOT-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/UVLO input Enable/undervoltage lockout pin: pulling it below 0.2V shuts the LT8301 down, its accurate 1.228V threshold can set a VIN UVLO via a resistor divider to ground, and it must be tied directly to VIN if neither function is used.
2 GND power_in Ground reference pin that must be tied directly to the local ground plane.
3 RFB input Input for the external feedback resistor connected to the transformer primary SW pin, whose ratio to the internal 10kΩ resistor and trimmed 1.0V reference sets VOUT, and trace area at this pin should be minimized.
4 SW passive Drain of the 65V internal DMOS power switch, where trace area should be minimized to reduce EMI and voltage spikes.
5 VIN power_in Input supply pin that powers the internal circuitry and serves as the reference for the RFB feedback circuit, and it should be locally bypassed to ground with a capacitor.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package TSOT-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
VIN Input Voltage Range VIN 2.7 42 V l: full operating temperature range 3
EN/UVLO Shutdown Threshold For Lowest Off IQ 0.2 0.55 V For Lowest Off IQ; l: full operating temperature range 3
EN/UVLO Enable Threshold Falling 1.204 1.228 1.248 V 3
VIN Quiescent Current, Sleep Mode (Switch Off) IQ 0.8 2 µA VEN/UVLO = 0.2V 3
VIN Quiescent Current, Active Mode (Switch On) IQ 100 215 350 µA VEN/UVLO = 1.1V 3
Minimum Switching Frequency fMIN 9.4 10 10.6 kHz 3
Maximum SW Current Limit ISW(MAX) 1.2 1.375 1.55 A l: full operating temperature range 3
Minimum SW Current Limit ISW(MIN) 0.22 0.29 0.36 A l: full operating temperature range 3
Switch Leakage Current ILKG 0.1 0.5 µA VIN = 42V, VSW = 65V 3
RFB Regulation Current IRFB 97.5 100 102.5 µA l: full operating temperature range 3
RFB Regulation Current Line Regulation 0.02 0.1 %/V 2.7V ≤ VIN ≤ 42V 3
EN/UVLO Hysteresis Current IHYS -0.1 0 0.1 µA VEN/UVLO = 0.2V 3
EN/UVLO Hysteresis Current IHYS 2.2 2.5 2.8 µA VEN/UVLO = 1.1V 3
SW pin voltage (drain of internal DMOS switch) SW 65 V Note 2 2
VIN VIN 42 V 2
Current into RFB 200 µA 2
Operating Junction Temperature Range (LT8301E) TJ -40 125 °C Notes 3, 4; LT8301E 2
Storage Temperature Range -65 150 °C 2
Thermal Resistance, Junction to Ambient (5-lead TSOT-23) θJA 150 °C/W 2
VIN UVLO Threshold Rising 2.5 V 3
VIN UVLO Threshold Falling 2.3 V 3
EN/UVLO Hysteresis 0.014 V 3
Minimum Switch-On Time tON(MIN) 170 ns 3
Maximum Switch-Off Time tOFF(MAX) 190 µs Backup Timer 3
Switch On-Resistance RDS(ON) 0.4 Ω ISW = 500mA 3

CAD (KiCad official)

  • Symbol: LT8301ES5#TRMPBF
  • Footprint: Package_TO_SOT_SMD:TSOT-23-5
  • 3D model: TSOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lt8301es5-trmpbf-etched.step / lt8301es5-trmpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt8301es5-trmpbf.step / lt8301es5-trmpbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (24 pp, sha256 63ee7a0f0b9c4621, retrieved 2026-10-18, 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