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LT8304ES8E#TRPBF
Public Made by Adomby adom
Analog Devices DC-DC Converters, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLT8304ES8E#TRPBF
Analog Devices · DC-DC Converters · SOIC-8-EP
LT8304ES8E#TRPBF from Analog Devices, in a SOIC-8-EP. 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 | Pull below 0.2V to shut down the LT8304; the pin has an accurate 1.214V enable threshold and can program a VIN UVLO using a resistor divider, with a 2.5µA hysteresis current. |
| 2 | INTVCC | power_out | Internal 3V linear regulator output supplied from VIN that powers the control circuitry and gate driver; do not overdrive it with an external supply and bypass with a minimum 1µF ceramic capacitor. |
| 3 | VIN | power_in | Input supply for the internal circuitry and reference for the RFB feedback circuit, with an operating input voltage range of 3V to 100V; bypass locally to ground with a capacitor. |
| 4 | GND | power_in | Ground connection; the exposed pad provides electrical and thermal contact to the printed circuit board ground plane and must be soldered to it. |
| 5 | SW | output | Drain of the internal 150V, 2A DMOS power switch; minimize trace area at this pin to reduce EMI and voltage spikes. |
| 6 | RFB | input | Input for the external feedback resistor connected to the transformer primary SW side; the RFB to RREF resistor ratio times the internal 1.00V reference sets the output voltage, and RFB current is limited to 200µA maximum. |
| 7 | RREF | input | External ground-referred reference resistor, nominally 10k, with a usable range of 9.09k to 11.0k for resistor divider ratio selection. |
| 8 | TC | output | Output voltage temperature compensation pin producing a PTAT voltage of 3.35mV/°C that equals 1V at 25°C; connect a resistor from this pin to RREF to compensate the output diode temperature coefficient. |
| 9 | GND | power_in | Exposed pad connected to ground that provides both electrical contact to ground and thermal contact to the PCB and must be soldered to the ground plane. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8-EP |
| Category | Power Management ICs |
| Pins | 9 |
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 Voltage Range | VIN | 3 | 100 | V | 3 | ||
| VIN Quiescent Current, shutdown | IQ | 1.8 | 3 | µA | VEN/UVLO = 0.2V; Sleep Mode (Switch Off) | 3 | |
| VIN Quiescent Current, sleep mode | IQ | 63 | 116 | µA | VEN/UVLO = 1.1V; Sleep Mode (Switch Off) | 3 | |
| VIN Quiescent Current, active mode | IQ | 390 | µA | VEN/UVLO = 1.1V; Active Mode (Switch On) | 3 | ||
| EN/UVLO Shutdown Threshold | 0.2 | 0.5 | V | For Lowest Off IQ | 3 | ||
| EN/UVLO Enable Threshold Falling | 1.178 | 1.214 | 1.25 | V | 3 | ||
| EN/UVLO Hysteresis Current | IHYS | -0.1 | 0 | 0.1 | µA | VEN/UVLO = 0.2V | 3 |
| EN/UVLO Hysteresis Current | IHYS | 2.3 | 2.5 | 2.7 | µA | VEN/UVLO = 1.1V | 3 |
| INTVCC Regulation Voltage | VINTVCC | 2.8 | 3 | 3.1 | V | IINTVCC = 0mA to 10mA | 3 |
| INTVCC Current Limit | IINTVCC | 16 | mA | VINTVCC = 2.8V | 3 | ||
| INTVCC UVLO Threshold Falling | 2.38 | 2.47 | 2.56 | V | 3 | ||
| (RFB - VIN) Voltage | -60 | 60 | mV | IRFB = 75µA to 125µA | 3 | ||
| RREF Regulation Voltage | VRREF | 0.98 | 1 | 1.02 | V | 3 | |
| RREF Regulation Voltage Line Regulation | 0.02 | 0.1 | % | 3V ≤ VIN ≤ 100V | 3 | ||
| TC Pin Current | ITC | 12 | 15 | 18 | µA | VTC = 1.2V (LT8304) | 3 |
| TC Pin Current | ITC | -200 | µA | VTC = 0.8V | 3 | ||
| Maximum Switching Frequency | fMAX | 315 | 350 | 385 | kHz | 3 | |
| Minimum Switching Frequency | fMIN | 8 | 11 | 14 | kHz | 3 | |
| Maximum Switch Current Limit | ISW(MAX) | 2 | 2.4 | 2.8 | A | 3 | |
| Minimum Switch Current Limit | ISW(MIN) | 0.43 | 0.48 | 0.53 | A | 3 | |
| Switch Leakage Current | ILKG | 0.1 | 0.5 | µA | VSW = 150V | 3 | |
| Minimum Switch-On Time (LT8304) | tON(MIN) | 160 | ns | LT8304 | 3 | ||
| Switch On-Resistance | RDS(ON) | 0.5 | Ω | ISW = 0.8A | 3 | ||
| Soft-Start Timer | tSS | 11 | ms | 3 | |||
| TC Pin Voltage | VTC | 1 | V | 3 | |||
| TC Pin Temperature Coefficient | 3.35 | mV/°C | PTAT voltage at TC pin | 7 | |||
| RREF Resistor Range | RREF | 9.09 | 11 | k | Pin 7 external ground-referred reference resistor; ~10k preferred | 7 | |
| SW Pin Voltage | 150 | V | Transients (Note 2) | 2 | |||
| VIN Pin Voltage | 100 | V | 2 | ||||
| Current Into RFB | 200 | µA | 2 | ||||
| INTVCC, RREF, TC Pin Voltage | 4 | V | 2 | ||||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | LT8304E (Notes 3, 4) | 2 | |
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Thermal Resistance Junction-to-Ambient | θJA | 33 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
LT8304ES8E#TRPBF - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
lt8304es8e-trpbf-etched.step/lt8304es8e-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt8304es8e-trpbf.step/lt8304es8e-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
b128fe4d36dd4804, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).