component
LT1935ES5#TRMPBF
Public Made by Adomby adom
Analog Devices DC-DC Converters, TSOT-23-5. 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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Contents
README
markdownLT1935ES5#TRMPBF
Analog Devices · DC-DC Converters · TSOT-23-5
LT1935ES5#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 | SW | output | Switch pin: connect the inductor and the Schottky diode here, and minimize the trace area at this pin to reduce EMI. |
| 2 | GND | power_in | Ground pin: tie directly to the local ground plane. |
| 3 | FB | input | Feedback pin with a 1.265V reference: connect the resistive divider tap here, keep the trace at FB short, and set VOUT = 1.265V(1 + R1/R2). |
| 4 | SHDN | input | Shutdown pin: tie to 1.8V or more to enable the device and ground it to shut down; it also provides the soft-start function. |
| 5 | VIN | power_in | Input supply pin that must be locally bypassed; the device operates from a 2.3V to 16V input range. |
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 |
|---|---|---|---|---|---|---|---|
| Feedback Voltage (measured at the FB pin) | 1.24 | 1.265 | 1.28 | V | Measured at the FB Pin; ● = full operating temperature range | 2 | |
| FB Pin Bias Current | 12 | 60 | nA | VFB = VREF; ● = full operating temperature range | 2 | ||
| Undervoltage Lockout Threshold | 2.1 | 2.3 | V | 2 | |||
| Maximum Input Voltage | 16 | V | 2 | ||||
| Switching Frequency | 1 | 1.2 | 1.4 | MHz | 2 | ||
| Maximum Duty Cycle | 85 | 93 | % | ● = full operating temperature range | 2 | ||
| Switch Current Limit | 2 | 3.2 | A | Note 3 | 2 | ||
| Switch Saturating Voltage | 180 | 280 | mV | ISW = 2A | 2 | ||
| Switch Leakage Current | 0.01 | 1 | µA | VSW = 5V; ● = full operating temperature range | 2 | ||
| SHDN Pin Input Current | 14 | 40 | µA | VSHDN = 1.8V | 2 | ||
| SHDN Supply Current | 0.1 | 1 | µA | VSHDN = 0V | 2 | ||
| SHDN Input High Voltage | 1.8 | V | 2 | ||||
| SHDN Input Low Voltage | 0.5 | V | 2 | ||||
| VIN Voltage | 16 | V | Note 1 | 2 | |||
| SW Voltage | -0.4 | 40 | V | Note 1 | 2 | ||
| FB Voltage | 6 | V | Note 1 | 2 | |||
| Current Into FB Pin | -1 | 1 | mA | Note 1 | 2 | ||
| SHDN Voltage | 16 | V | Note 1 | 2 | |||
| Maximum Junction Temperature | 125 | °C | 2 | ||||
| Operating Ambient Temperature Range | -40 | 85 | °C | Note 2 | 2 | ||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Junction-to-ambient thermal resistance | θJA | 113 | °C/W | S5 package | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | pin copper area large. This helps to lower the die | 6 |
CAD (KiCad official)
- Symbol:
LT1935ES5#TRMPBF - Footprint:
Package_TO_SOT_SMD:TSOT-23-5 - 3D model: TSOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lt1935es5-trmpbf-etched.step/lt1935es5-trmpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1935es5-trmpbf.step/lt1935es5-trmpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (8 pp, sha256
de58fbb315a8b90e, retrieved 2026-10-18, tier: lcsc) - 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).