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LT1767EMS8E#TRPBF

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Analog Devices DC-DC Converters, MSOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LT1767EMS8E#TRPBF

Analog Devices · DC-DC Converters · MSOP-8-EP

LT1767EMS8E#TRPBF 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 BOOST power_in Provides a drive voltage higher than the input voltage to the internal NPN power switch so the switch can saturate; without it the typical switch voltage loss would be about 1.5V.
2 VIN power_in Collector of the on-chip power NPN switch and supply pin for the internal circuitry and regulator; the bypass capacitor and catch diode must be kept close to this pin.
3 SW output Emitter of the on-chip power NPN switch, driven up to the input voltage during switch on time; negative voltage during switch off must be clamped by an external catch diode with VBR < 0.8V.
4 GND power_in Reference for the regulated output, connected to the internal tab and to the exposed pad; it should be soldered to a large copper area to improve thermal resistance.
5 SHDN input Shutdown pin that turns the regulator off and reduces input drain current to a few microamperes; its 1.33V threshold can serve as an accurate undervoltage lockout, and floating or pulling it high runs the regulator.
6 FB input Feedback pin that sets the output through an external divider generating 1.2V at the pin on the adjustable part; an impedance below 5kΩ at this pin is needed for the current limit foldback when FB is below 0.5V.
7 VC passive Output of the error amplifier and input of the peak switch current comparator, normally used for frequency compensation; it sits at about 0.35V at very light loads and 0.9V at maximum load, and can be driven to ground to shut off the output.
8 SYNC input Synchronizes the internal oscillator to an external logic signal with a 20% to 80% duty cycle over a range from the initial operating frequency up to 2MHz; it should be grounded when not in use.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

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
Maximum Switch Current Limit 1.5 2 3 A TA = 0°C to 125°C 3
Maximum Switch Current Limit 1.3 3 A TA < 0°C 3
Oscillator Frequency 1.1 1.25 1.4 MHz 3.3V < VIN < 25V 3
Oscillator Frequency 1.1 1.5 MHz 3.3V < VIN < 25V 3
Switch On Voltage Drop 330 400 mV ISW = -1.5A, 0°C ≤ TA ≤ 125°C and -1.3A, TA < 0°C 3
Switch On Voltage Drop 500 mV ISW = -1.5A, 0°C ≤ TA ≤ 125°C and -1.3A, TA < 0°C 3
VIN Undervoltage Lockout 2.47 2.6 2.73 V 3
VIN Supply Current 1 1.3 mA VFB = VNOM + 17% 3
Shutdown Supply Current 6 20 µA VSHDN = 0V, VIN = 25V, VSW = 0V 3
Shutdown Supply Current 45 µA VSHDN = 0V, VIN = 25V, VSW = 0V 3
Feedback Voltage LT1767 (Adj) 1.182 1.2 1.218 V 3V < VIN < 25V, 0.4V < VC < 0.9V 3
Feedback Voltage LT1767 (Adj) 1.176 1.224 V 3V < VIN < 25V, 0.4V < VC < 0.9V 3
FB Input Current LT1767 (Adj) -0.25 -0.5 µA 3
Error Amp Voltage Gain 150 350 0.4V < VC < 0.9V 3
Error Amp Transconductance 500 850 1300 µMho ΔIVC = ±10µA 3
VC Pin Source Current 80 120 160 µA VFB = VNOM, 17% 3
VC Pin Sink Current 70 110 180 µA VFB = VNOM + 17% 3
Maximum Switch Duty Cycle 85 90 % VC = 1.2V, ISW = 400mA 3
Maximum Switch Duty Cycle 80 % VC = 1.2V, ISW = 400mA 3
Minimum Boost Voltage Above Switch 1.8 2.7 V ISW = -1.5A, 0°C ≤ TA ≤ 125°C and -1.3A, TA < 0°C 3
Boost Current 10 15 mA ISW = -0.5A (Note 4) 3
Boost Current 30 45 mA ISW = -1.5A, 0°C ≤ TA ≤ 125°C and -1.3A, TA < 0°C (Note 4) 3
SHDN Threshold Voltage 1.27 1.33 1.4 V 3
SHDN Input Current (Shutting Down) -7 -10 -13 µA SHDN = 60mV Above Threshold 3
SHDN Threshold Current Hysteresis 4 7 10 µA SHDN = 100mV Below Threshold 3
SYNC Threshold Voltage 1.5 2.2 V 3
SYNC Input Frequency 1.5 2 MHz 3
VIN Operating Voltage Range VIN 3 25 V 1
Input Voltage 25 V 2
BOOST Pin Above SW 20 V 2
SHDN Pin 25 V 2
FB Pin Voltage 6 V 2
FB Pin Current 1 mA 2
SYNC Pin Current 1 mA 2
Operating Junction Temperature Range LT1767E TJ -40 125 °C 2
Storage Temperature Range TSTG -65 150 °C 2
Lead Temperature (Soldering, 10 sec) 300 °C Soldering, 10 sec 2
Maximum Junction Temperature TJMAX 125 °C MS8E package 2
Thermal Resistance Junction-to-Ambient θJA 40 °C/W MS8E package, with full plane under the 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 GROUND PIN CONNECTED TO LARGE COPPER AREA 2

CAD (KiCad official)

  • Symbol: LT1767EMS8E#TRPBF
  • Footprint: Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm
  • 3D model: MSOP-8-EP (KiCad packages3D, STEP)
  • 3D model files: lt1767ems8e-trpbf-etched.step / lt1767ems8e-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt1767ems8e-trpbf.step / lt1767ems8e-trpbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (20 pp, sha256 0dda005491f2035f, retrieved 2026-10-29, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF