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LT3085EMS8E#PBF
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Analog Devices Linear Voltage Regulators (LDO), MSOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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LT3085EMS8E#PBF
Analog Devices · Linear Voltage Regulators (LDO) · MSOP-8-EP
LT3085EMS8E#PBF from Analog Devices, in a MSOP-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 | OUT | power_out | Power output of the device; a minimum load current of 1mA is required or the output may not regulate, and a minimum 2.2µF output capacitor is required for stability. |
| 2 | OUT | power_out | Power output of the device, to be connected in parallel with pins 1 and 3; the same 1mA minimum load and 2.2µF minimum output capacitor apply. |
| 3 | OUT | power_out | Power output of the device, to be connected in parallel with pins 1 and 2; the same 1mA minimum load and 2.2µF minimum output capacitor apply. |
| 4 | SET | input | Non-inverting input to the error amplifier and regulation set point, where a fixed 10µA flows out through a single external resistor to program the output voltage from zero up to the absolute maximum rated output voltage; a small capacitor to ground can improve transient response and reduce output noise. |
| 5 | VCONTROL | power_in | Supply pin for the control circuitry, which must be at least 1.2V to 1.35V above VOUT for regulation; it requires a 1µF to 10µF bypass capacitor if more than six inches from the main input filter capacitor. |
| 6 | NC | unconnected | No connection to internal circuitry; it may be tied to VIN, VCONTROL, VOUT, GND, or left floating. |
| 7 | IN | power_in | Collector of the power device through which the output load current is supplied; it must be at least 0.1V to 0.5V above VOUT for regulation and needs a 1µF to 10µF bypass capacitor if more than six inches from the main input filter capacitor. |
| 8 | IN | power_in | Collector of the power device, connected in parallel with pin 7 to supply the output load current; the same 0.1V to 0.5V headroom over VOUT applies. |
| 9 | OUT | power_out | Exposed pad connected internally to OUT; it must be tied directly to pins 1, 2 and 3 at the PCB and soldered to VOUT for thermal performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | MSOP-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 |
|---|---|---|---|---|---|---|---|
| VCONTROL Pin Voltage | -0.3 | 40 | V | All voltages relative to VOUT (Note 1) | 2 | ||
| IN Pin Voltage | -0.3 | 40 | V | All voltages relative to VOUT (Note 1) | 2 | ||
| SET Pin Current | -15 | 15 | mA | Note 7 | 2 | ||
| SET Pin Voltage (Relative to OUT) | -10 | 10 | V | Relative to OUT | 2 | ||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | E grade | 2 | |
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Lead Temperature (Soldering, 10 sec) | 300 | °C | MS8E package only, 10 sec soldering | 2 | |||
| SET Pin Current | ISET | 9.9 | 10 | 10.1 | µA | VIN = 1V, VCONTROL = 2V, ILOAD = 1mA, TJ = 25°C | 3 |
| SET Pin Current | ISET | 9.8 | 10 | 10.2 | µA | VIN ≥ 1V, VCONTROL ≥ 2V, 1mA ≤ ILOAD ≤ 500mA (Note 9) | 3 |
| Output Offset Voltage (VOUT, VSET) | VOS | -1.5 | 1.5 | mV | VIN = 1V, VCONTROL = 2V, ILOAD = 1mA, TJ = 25°C | 3 | |
| Output Offset Voltage (VOUT, VSET) | VOS | -3 | 3 | mV | VIN ≥ 1V, VCONTROL ≥ 2V, 1mA ≤ ILOAD ≤ 500mA (Note 9) | 3 | |
| Load Regulation (ΔVOS) | ΔVOS | -0.6 | -1 | mV | ΔILOAD = 1mA to 500mA (Note 8) | 3 | |
| Line Regulation (ΔISET) | ΔISET | 0.1 | 0.5 | nA/V | ΔVIN = 1V to 36V, ΔVCONTROL = 2V to 36V, ILOAD = 1mA | 3 | |
| Minimum Load Current | 300 | 500 | µA | VIN = VCONTROL = 10V (Notes 3, 9) | 3 | ||
| Minimum Load Current | 1 | mA | VIN = VCONTROL = 36V (Notes 3, 9) | 3 | |||
| VCONTROL Dropout Voltage | 1.35 | 1.6 | V | ILOAD = 500mA (Note 4) | 3 | ||
| VIN Dropout Voltage | 85 | 150 | mV | ILOAD = 100mA (Note 4) | 3 | ||
| VIN Dropout Voltage | 275 | 450 | mV | ILOAD = 500mA (Note 4) | 3 | ||
| VCONTROL Pin Current | 3 | 6 | mA | ILOAD = 100mA (Note 5) | 3 | ||
| VCONTROL Pin Current | 8 | 15 | mA | ILOAD = 500mA (Note 5) | 3 | ||
| Current Limit | 500 | 650 | mA | VIN = 5V, VCONTROL = 5V, VSET = 0V, VOUT = -0.1V (Note 9) | 3 | ||
| Maximum Junction Temperature (TJMAX) | TJMAX | 125 | °C | MS8E package | 2 | ||
| Junction-to-Ambient Thermal Resistance (θJA) | θJA | 60 | °C/W | MS8E package | 2 | ||
| Junction-to-Case Thermal Resistance (θJC) | θJC | 10 | °C/W | MS8E package | 2 | ||
| Junction-to-Ambient Thermal Resistance (MSOP) | 55 | °C/W | Topside copper 2500mm2, backside copper 2500mm2, board area 2500mm2 | 15 | |||
| Junction-to-Ambient Thermal Resistance (MSOP) | 57 | °C/W | Topside copper 1000mm2, backside copper 2500mm2, board area 2500mm2 | 15 | |||
| Junction-to-Ambient Thermal Resistance (MSOP) | 60 | °C/W | Topside copper 225mm2, backside copper 2500mm2, board area 2500mm2 | 15 | |||
| Junction-to-Ambient Thermal Resistance (MSOP) | 65 | °C/W | Topside copper 100mm2, backside copper 2500mm2, board area 2500mm2 | 15 |
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 | Table 3. MSE Package, 8-Lead MSOP COPPER AREA THERMAL RESISTANCE | 15 |
CAD (KiCad official)
- Symbol:
LT3085EMS8E#PBF - Footprint:
Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm - 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
lt3085ems8e-pbf-etched.step/lt3085ems8e-pbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt3085ems8e-pbf.step/lt3085ems8e-pbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
c5243716ea4c9cc7, retrieved 2026-10-31, 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).