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LT1054CS8#TRPBF
Public Made by Adomby adom
Analog Devices DC-DC Converters, SO-8. 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
markdownLT1054CS8#TRPBF
Analog Devices · DC-DC Converters · SO-8
LT1054CS8#TRPBF from Analog Devices, in a SO-8. 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 | FB/SHDN | input | Feedback input (inverting input of the error amplifier) for setting a regulated output, and pulling it below the ≈0.45V shutdown threshold shuts the device down (supply current in shutdown ≈100µA typ, 200µA max). |
| 2 | CAP+ | passive | Positive side of the input capacitor CIN, alternately driven between V+ and ground. |
| 3 | GND | power_in | Ground pin, the reference for VIN and VOUT; VOUT (pin 5) must not be pulled positive with respect to it. |
| 4 | CAP- | passive | Negative side of the input capacitor CIN, alternately driven between ground and VOUT. |
| 5 | VOUT | power_out | Negative output pin, also tied to the device substrate, so it must not be pulled positive with respect to any other pin or the device may fail to start. |
| 6 | VREF | power_out | 2.5V reference output (2.35V to 2.65V at 25°C) for regulator circuits, with output current limited to approximately 60µA. |
| 7 | OSC | bidirectional | Oscillator pin (nominal 25kHz, internal Ct ≈150pF) used to lower or raise the switching frequency or synchronize to an external clock, with input range 0V to VREF. |
| 8 | V+ | power_in | Input supply pin, 3.5V to 15V for the LT1054 (absolute maximum 16V), with a minimum bypass capacitor of 2µF recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SO-8 |
| Category | Power Management ICs |
| Pins | 8 |
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 Current | 2.5 | 4 | mA | ILOAD = 0mA, LT1054: VIN = 3.5V | 3 | ||
| Supply Current | 3 | 5 | mA | ILOAD = 0mA, LT1054: VIN = 15V | 3 | ||
| Supply Voltage Range | 3.5 | 15 | V | LT1054 | 3 | ||
| Voltage Loss (VIN, /VOUT/) | 0.35 | 0.55 | V | CIN = COUT = 100µF Tantalum, IOUT = 10mA | 3 | ||
| Voltage Loss (VIN, /VOUT/) | 1.1 | 1.6 | V | CIN = COUT = 100µF Tantalum, IOUT = 100mA | 3 | ||
| Output Resistance | 10 | 15 | Ω | ΔIOUT = 10mA to 100mA | 3 | ||
| Oscillator Frequency | 15 | 25 | 40 | kHz | LT1054: 3.5V ≤ VIN ≤ 15V | 3 | |
| Reference Voltage | 2.35 | 2.5 | 2.65 | V | IREF = 60µA, TJ = 25°C | 3 | |
| Reference Voltage | 2.25 | 2.75 | V | IREF = 60µA, full operating temperature range | 3 | ||
| Regulated Voltage | -4.7 | -5 | -5.2 | V | VIN = 7V, TJ = 25°C, RL = 500Ω | 3 | |
| Line Regulation | 5 | 25 | mV | LT1054: 7V ≤ VIN ≤ 12V, RL = 500Ω | 3 | ||
| Load Regulation | 10 | 50 | mV | VIN = 7V, 100Ω ≤ 500Ω | 3 | ||
| Maximum Switch Current | 300 | mA | 3 | ||||
| Supply Current in Shutdown | 100 | 200 | µA | VPIN1 = 0V | 3 | ||
| Supply Voltage | 16 | V | LT1054 | 2 | |||
| Operating Junction Temperature Range | 0 | 100 | °C | LT1054C | 2 | ||
| Maximum Junction Temperature | TJMAX | 125 | °C | LT1054C | 2 | ||
| Storage Temperature Range | -55 | 150 | °C | J8, N8 and S8 Packages | 2 | ||
| Lead Temperature (Soldering, 10 sec) | 300 | °C | 2 | ||||
| Input Voltage Pin 1 | VPIN1 | 0 | V | 0V ≤ VPIN1 ≤ V+ | 2 | ||
| Input Voltage Pin 7 | VPIN7 | 0 | V | 0V ≤ VPIN7 ≤ VREF | 2 | ||
| Thermal Resistance Junction to Ambient | θJA | 120 | °C/W | S8 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 | tin | NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE (1.143, 1.651) OR TIN PLATE LEADS | 13 |
CAD (KiCad official)
- Symbol:
LT1054CS8#TRPBF - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
lt1054cs8-trpbf-etched.step/lt1054cs8-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1054cs8-trpbf.step/lt1054cs8-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (16 pp, sha256
26492c6df46bb8c5, retrieved 2026-10-31, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).