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LT1761ES5-SD#TRPBF

Analog Devices · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TSOT-23-5

LT1761ES5-SD#TRPBF 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 IN power_in Input supply pin; a 1µF to 10µF bypass capacitor is needed if the device is more than six inches from the main input filter capacitor, and the pin withstands reverse voltage (rated ±20V) with no reverse current flow.
2 GND power_in Ground.
3 SHDN input Shutdown input that turns the output off when pulled low; it can be driven by 5V logic or open-collector logic with a pull-up resistor, must be tied to VIN if unused, and the device will not function if it is left unconnected.
4 ADJ input Error amplifier input of the adjustable device, regulated to 1.22V referenced to ground (output range 1.22V to 20V), internally clamped to ±7V, with a 30nA bias current flowing into the pin.
5 OUT power_out Regulated output that supplies the load; a minimum output capacitor of 1µF is required to prevent oscillations.

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
IN Pin Voltage -20 20 V 2
OUT Pin Voltage -20 20 V 2
Input to Output Differential Voltage -20 20 V 2
ADJ Pin Voltage -7 7 V 2
SHDN Pin Voltage -20 20 V 2
Operating Junction Temperature Range -40 125 °C E grade (Note 2) 2
Storage Temperature Range -65 150 °C 2
Lead Temperature (Soldering) 300 °C Soldering, 10 sec 2
Maximum Junction Temperature (TJMAX) TJMAX 150 °C As printed on S5 package drawing; text specifies 125°C max for continuous operation 2
Junction-to-Ambient Thermal Resistance θJA 250 °C/W As printed on S5 package drawing 2
Thermal Resistance (junction-to-ambient), topside copper 2500mm2 125 °C/W Topside copper 2500mm2, backside 2500mm2, board 2500mm2; 3/32in FR-4, still air 17
Thermal Resistance (junction-to-ambient), topside copper 1000mm2 125 °C/W Topside copper 1000mm2, backside 2500mm2, board 2500mm2; 3/32in FR-4, still air 17
Thermal Resistance (junction-to-ambient), topside copper 225mm2 130 °C/W Topside copper 225mm2, backside 2500mm2, board 2500mm2; 3/32in FR-4, still air 17
Thermal Resistance (junction-to-ambient), topside copper 100mm2 135 °C/W Topside copper 100mm2, backside 2500mm2, board 2500mm2; 3/32in FR-4, still air 17
Thermal Resistance (junction-to-ambient), topside copper 50mm2 150 °C/W Topside copper 50mm2, backside 2500mm2, board 2500mm2; 3/32in FR-4, still air 17
Minimum Input Voltage 1.8 2.3 V ILOAD = 100mA; full operating temperature range (l) 4
Regulated Output Voltage (ADJ-tied, 1.22V) 1.205 1.22 1.235 V VIN = 2V, ILOAD = 1mA; full temp range (l) 4
Regulated Output Voltage (ADJ-tied, 1.22V) 1.19 1.22 1.25 V 2.3V < VIN < 20V, 1mA < ILOAD < 50mA; full temp range (l) 4
Regulated Output Voltage (ADJ-tied, 1.22V) 1.17 1.22 1.26 V 2.3V < VIN < 20V, 1mA < ILOAD < 100mA; full temp range (l) 4
Line Regulation 1 10 mV ΔVIN = 2V to 20V, ILOAD = 1mA; full temp range (l) 4
Dropout Voltage 0.1 0.15 V VIN = VOUT(NOMINAL), ILOAD = 1mA 5
Dropout Voltage 0.17 0.22 V VIN = VOUT(NOMINAL), ILOAD = 10mA 5
Dropout Voltage 0.24 0.28 V VIN = VOUT(NOMINAL), ILOAD = 50mA 5
Dropout Voltage 0.3 0.35 V VIN = VOUT(NOMINAL), ILOAD = 100mA 5
Dropout Voltage (full temp range) 0.19 V VIN = VOUT(NOMINAL), ILOAD = 1mA; full temp range (l) 5
Dropout Voltage (full temp range) 0.29 V VIN = VOUT(NOMINAL), ILOAD = 10mA; full temp range (l) 5
Dropout Voltage (full temp range) 0.38 V VIN = VOUT(NOMINAL), ILOAD = 50mA; full temp range (l) 5
Dropout Voltage 0.45 V VIN = VOUT(NOMINAL), ILOAD = 100mA 5
GND Pin Current 20 45 μA VIN = VOUT(NOMINAL), ILOAD = 0mA; full temp range (l) 6
GND Pin Current 55 100 μA VIN = VOUT(NOMINAL), ILOAD = 1mA; full temp range (l) 6
GND Pin Current 230 400 μA VIN = VOUT(NOMINAL), ILOAD = 10mA; full temp range (l) 6
GND Pin Current 1 2 mA VIN = VOUT(NOMINAL), ILOAD = 50mA; full temp range (l) 6
GND Pin Current 2.2 4 mA VIN = VOUT(NOMINAL), ILOAD = 100mA; full temp range (l) 6
Output Voltage Noise 20 μVRMS COUT = 10μF, CBYP = 0.01μF, ILOAD = 100mA, BW = 10Hz to 100kHz 6
ADJ Pin Bias Current 30 100 nA 6
SHDN Pin Current 0 0.5 μA VSHDN = 0V; full temp range (l) 6
SHDN Pin Current 1 3 μA VSHDN = 20V; full temp range (l) 6
Shutdown Threshold (Off to On) 0.25 0.8 V VOUT = Off to On; full temp range (l) 6
Shutdown Threshold (On to Off) 0.65 2 V VOUT = On to Off; full temp range (l) 6
Quiescent Current in Shutdown 0.01 0.1 μA VIN = 6V, VSHDN = 0V 6
Ripple Rejection 55 65 dB VIN, VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 50mA 6
Current Limit 200 mA VIN = 7V, VOUT = 0V 6
Current Limit 110 mA VIN = VOUT(NOMINAL) + 1V or 2.3V (Note 12), ΔVOUT = -5%; full temp range (l) 6
Input Reverse Leakage Current 1 mA VIN = -20V, VOUT = 0V; full temp range (l) 6
Reverse Output Current 5 10 μA VOUT = 1.22V, VIN < 1.22V (Note 10) 6
Input Voltage Range (operating) VIN 1.8 20 V Wide input voltage range, per datasheet description 1

CAD (KiCad official)

  • Symbol: LT1761ES5-SD#TRPBF
  • Footprint: Package_TO_SOT_SMD:TSOT-23-5
  • 3D model: TSOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lt1761es5-sd-trpbf-etched.step / lt1761es5-sd-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt1761es5-sd-trpbf.step / lt1761es5-sd-trpbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (22 pp, sha256 5e4fc36c022415d2, retrieved 2026-10-18, tier: lcsc)
  • 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