LT1761ES5-SD#TRMPBF Analog Devices Integrated Circuit (SOT23 (5-Pin)) In Stock
The LT1761ES5-SD#TRMPBF is a low-noise micropower adjustable LDO regulator delivering 100mA with only 0.3V typical dropout. Input-output differential spans 1.08V to 18.78V for versatile supply configurations. Available in SOT-23-5 package with worldwide stock and shipping.
- Manufacturer
- Analog Devices
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LT1761ES5-SD#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7727(MOQ 105)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1761ES5-SD#TRMPBF?
- Ultra-low noise output ideal for sensitive analog and RF supply rails
- 100mA adjustable output with 0.3V typical dropout for near-rail-to-rail efficiency
- Wide input-output differential up to 18.78V supports a broad range of input supplies
- Micropower quiescent current extends battery life in portable instruments
What is LT1761ES5-SD#TRMPBF used for?
The LT1761ES5-SD#TRMPBF is designed for portable test instruments, precision analog circuits, and RF front-end supply rails that require a clean, low-noise regulated voltage adjustable from 1.22V upward. Its micropower quiescent current and 0.3V dropout make it an excellent choice for lithium-ion battery-powered devices where efficiency and noise performance are equally critical. Medical monitoring equipment, audio ADC references, and cellular handset subsystems also benefit from this regulator's low spectral noise density.
What are the specifications of LT1761ES5-SD#TRMPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1635 |
| YTEOL | 10 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.45V |
| Dropout Voltage1-Nom | 0.3V |
| Input-Output Voltage Differential-Max | 18.78V |
| Input-Output Voltage Differential-Min | 1.08V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max (%/V) | 0.046 |
| Load Regulation-Max(%) | 4.27% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.1A |
| Output Voltage1-Max | 20V |
| Output Voltage1-Min | 1.22V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the LT1761ES5-SD#TRMPBF datasheet?
LT1761ES5-SD#TRMPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1761ES5-SD#TRMPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low is the output noise of the LT1761ES5-SD#TRMPBF, and why does that matter for precision ADC supply rails?
The LT1761ES5-SD#TRMPBF achieves a typical output noise spectral density of approximately 20 µV RMS over 10 Hz to 100 kHz, far below the noise floor of most 16-bit or 18-bit SAR ADCs. Feeding an ADC reference or analog supply with this LDO prevents noise from degrading effective number of bits (ENOB), maintaining full 16-bit resolution at 100 mA load current while operating from input rails up to 20 V.
What output voltage range can the LT1761ES5-SD#TRMPBF be configured for using external resistors?
As an adjustable LDO, the LT1761ES5-SD#TRMPBF regulates output voltage from its 1.22 V internal reference upward, set by a resistor divider from VOUT to ADJ and ADJ to GND. The maximum input-output differential of 18.78 V allows outputs up to approximately 19 V from a 20 V input, while the 1.08 V minimum differential ensures it regulates tightly at 100 mA with a dropout of only 0.3 V typical.
For a portable RF signal generator requiring a quiet 3.3V at 100mA, how does the LT1761ES5-SD#TRMPBF compare to a standard LDO?
Standard LDOs such as the LP2985 have output noise of 50 µV to 100 µV RMS, while the LT1761ES5-SD#TRMPBF achieves approximately 20 µV RMS—2x to 5x quieter. At 100 mA and 3.3 V output from a 3.6 V Li-ion cell, it maintains regulation with only 0.3 V dropout versus 0.5 V to 0.7 V for many competing parts, recovering roughly 20 mW of efficiency in handheld RF equipment.
How does the SOT-23-5 package of the LT1761ES5-SD#TRMPBF limit the number of external components needed?
The SOT-23-5 package integrates the reference, error amplifier, and pass transistor into a 2.9 mm × 1.6 mm body, requiring only 2 resistors for output voltage setting and 1 µF input and output capacitors—4 to 5 passive components total. This minimal external count and compact 5-pin SOT-23 footprint suit space-critical PCB areas in smartphones, wearables, and portable instruments where board area costs are high.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 105+ | $1.9168 | $201.26 |
| 136+ | $1.8447 | $250.88 |
| 170+ | $1.7727 | $301.36 |
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