component
LT1054IS8#TRPBF
Public Made by Adomby adom
Analog Devices Charge Pumps, 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
markdownLT1054IS8#TRPBF
Analog Devices · Charge Pumps · SO-8
LT1054IS8#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/shutdown pin that acts as the inverting input of the error amplifier for regulation, and pulling it below the shutdown threshold (≈0.45V) shuts the device down. |
| 2 | CAP+ | passive | Positive side of the input capacitor CIN, alternately driven between V+ and ground. |
| 3 | GND | power_in | Ground reference pin to which VIN and VOUT are referred, and VOUT must not be pulled positive with respect to it or the device may fail to start. |
| 4 | CAP- | passive | Negative side of the input capacitor CIN, alternately driven between ground and VOUT. |
| 5 | VOUT | power_out | Regulated or inverted output, also tied to the device substrate, so it must not be pulled positive with respect to the other pins during start-up. |
| 6 | VREF | power_in | Reference output of 2.5V for regulator circuits, with reference output current limited to approximately 60µA for regulator feedback networks. |
| 7 | OSC | bidirectional | Oscillator pin for raising, lowering or synchronizing the switching frequency (nominal 25kHz), with a 20k pull-up to VREF recommended for synchronization. |
| 8 | V+ | power_in | Input supply pin with an operating range of 3.5V to 15V for the LT1054 (16V absolute maximum), and a minimum 2µF low-ESR input bypass capacitor is recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SO-8 |
| Category | Power Management (PMIC) |
| 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 (ILOAD = 0mA, VIN = 3.5V) | 2.5 | 4 | mA | ILOAD = 0mA, VIN = 3.5V; l = full operating temperature range | 3 | ||
| Supply Current (ILOAD = 0mA, VIN = 15V) | 3 | 5 | mA | ILOAD = 0mA, VIN = 15V; l = full operating temperature range | 3 | ||
| Supply Voltage Range (LT1054) | 3.5 | 15 | V | LT1054; l = full operating temperature range | 3 | ||
| Voltage Loss (VIN, /VOUT/) | 0.35 | 0.55 | V | CIN = COUT = 100µF Tantalum (Note 4); IOUT = 10mA | 3 | ||
| Voltage Loss (VIN, /VOUT/) | 1.1 | 1.6 | V | CIN = COUT = 100µF Tantalum (Note 4); IOUT = 100mA | 3 | ||
| Output Resistance | 10 | 15 | Ω | ΔIOUT = 10mA to 100mA (Note 5); l = full operating temperature range | 3 | ||
| Oscillator Frequency (LT1054) | fOSC | 15 | 25 | 40 | kHz | LT1054: 3.5V ≤ VIN ≤ 15V; l = full operating temperature range | 3 |
| Reference Voltage | VREF | 2.35 | 2.5 | 2.65 | V | IREF = 60µA, TJ = 25°C | 3 |
| Reference Voltage (full operating temperature range) | VREF | 2.25 | 2.75 | V | IREF = 60µA; l = full operating temperature range | 3 | |
| Regulated Voltage | -5.2 | -5 | -4.7 | V | VIN = 7V, TJ = 25°C, RL = 500Ω (Note 6) | 3 | |
| Line Regulation (LT1054) | 5 | 25 | mV | LT1054: 7V ≤ VIN ≤ 12V, RL = 500Ω (Note 6); l = full operating temperature range | 3 | ||
| Load Regulation | 10 | 50 | mV | VIN = 7V, 100Ω ≤ 500Ω (Note 6); l = full operating temperature range | 3 | ||
| Maximum Switch Current | 300 | mA | 3 | ||||
| Supply Current in Shutdown | 100 | 200 | µA | VPIN1 = 0V; l = full operating temperature range | 3 | ||
| Supply Voltage (LT1054, absolute maximum) | 16 | V | Unregulated circuits (Note 2); regulation mode with VOUT ≤ 15V at Pin 5 may be increased to 20V | 2 | |||
| Operating Junction Temperature Range (LT1054I) | TJ | -40 | 100 | °C | LT1054I | 2 | |
| Maximum Junction Temperature (LT1054I) | TJMAX | 125 | °C | LT1054I | 2 | ||
| Storage Temperature Range (S8 package) | TSTG | -55 | 150 | °C | J8, N8 and S8 Packages | 2 | |
| Lead Temperature (Soldering) | 300 | °C | Soldering, 10 sec | 2 | |||
| Thermal Resistance Junction-to-Ambient (S8 package) | θJA | 120 | °C/W | S8 package, TJMAX = 125°C | 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:
LT1054IS8#TRPBF - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
lt1054is8-trpbf-etched.step/lt1054is8-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1054is8-trpbf.step/lt1054is8-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 2026-10-20, 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).