LT3061 Series

RECOMMENDED FOR NEW DESIGNS

45V VIN, Micropower, Low Noise, 100mA LDO with Active Output Discharge

Data Sheet Product Selection Table
Part Models
32
1ku List Price
Starting From $1.88
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Part Details

  • Input Voltage Range: 1.6V to 45V
  • Output Current: 100mA
  • Output Discharge
  • Quiescent Current: 45μA
  • Dropout Voltage: 250mV
  • Low Noise: 30μVRMS (10Hz to 100kHz)
  • Adjustable Output (VREF = 600mV)
  • Fixed Output Voltages: 3.3V, 5V
  • Output Tolerance: ±2% Over Load, Line, and Temperature
  • Single Capacitor Soft-Starts Reference and Lowers Output Noise
  • Shutdown Current: < 3μA
  • Reverse Battery Protection
  • Current Limit Foldback and Thermal Limit Protection
  • 8-Lead 2mm × 3mm DFN and MSOP Packages
LT3061 Series
45V VIN, Micropower, Low Noise, 100mA LDO with Active Output Discharge
3.3V Low Noise Regulator LT3061-3.3 Active Output Discharge Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Low Voltage Hot Swap Controllers 1
LTC4231
RECOMMENDED FOR NEW DESIGNS Micropower Hot Swap Controller
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4365
RECOMMENDED FOR NEW DESIGNS Overvoltage, Undervoltage and Reverse Supply Protection Controller
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3061
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC2177A-A

LT3061 Demo Board | Micropower, Low Noise LDO with Output Discharge, 2.1V ≤ VIN ≤ 45V, VOUT = 1.2V to 5V @ 100mA

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Product Details

Demonstration circuit 2177A-A features the LT3061, a micropower, low noise and low dropout voltage linear regulator with output discharge. The input voltage ranges from 2.1V to 45V and the maximum output current is 100mA. A resistor divider determines the output voltage, and a jumper adjusts the divider to set the output voltage to either 1.2V, 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V or a voltage that is user-programmed but requires the installation of a resistor. The output uses a 10μF ceramic capacitor and the internal reference is bypassed with a 10nF capacitor to reduce output noise and program the soft-start. There is also a 10nF feedforward capacitor to improve load transient response and decrease noise at higher output voltages. The position of the VOUTEN jumper either pulls up the SHDN pin to the input supply through a 100k resistor, shorts SHDN to ground or floats the SHDN pin so it can be driven directly by a signal applied to the SHDN terminal.
DC2177A-A
LT3061 Demo Board | Micropower, Low Noise LDO with Output Discharge, 2.1V ≤ VIN ≤ 45V, VOUT = 1.2V to 5V @ 100mA
DC2177A-A Demo Board DC2177A-A Demo Board DC2177A-A Demo Board DC2177A-A Demo Board DC2177A-A - Schematic

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