LT3062

RECOMMENDED FOR NEW DESIGNS

45V VIN, Micropower, Low Noise, 200mA LDO

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Overview

  • Input Voltage Range: 1.6V to 45V
  • Output Current: 200mA
  • Quiescent Current: 45μA
  • Dropout Voltage: 300mV
  • 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: < 1μA
  • Reverse Battery Protection
  • Current Limit Foldback and Thermal Limit Protection
  • 8-Lead 2mm × 3mm DFN and MSOP Packages
LT3062
45V VIN, Micropower, Low Noise, 200mA LDO
1.8V Low Noise Regulator Dropout Voltage Product Package 1 Product Package 2
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Documentation

Data Sheet 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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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Hot Swap Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
Ideal Diodes and PowerPath Controllers 1
LTC4417
RECOMMENDED FOR NEW DESIGNS Prioritized PowerPath™ Controller
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LT3062
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-B

LT3062 Demo Board | Micropower, Low Noise LDO, 2.1V ≤ VIN ≤ 45V, VOUT = 1.2V to 5V @ 200mA

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Product Details

Demonstration circuit 2177A-B features the LT3062, a micropower, low noise and low dropout voltage linear regulator. The input voltage ranges from 2.1V to 45V and the maximum output current is 200mA. 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-B
LT3062 Demo Board | Micropower, Low Noise LDO, 2.1V ≤ VIN ≤ 45V, VOUT = 1.2V to 5V @ 200mA
DC2177A-A Demo Board DC2177A-A Demo Board DC2177A-A Demo Board DC2177A-A Demo Board DC2177A-B - Schematic

Reference Designs

ADPS40091-RD Power Tree
ADPS40091-RD Power Tree
ADPS40091 Board Illustration
ADPS40091-RD Instrumentation Power Solution Circuits from the lab

30W 16th brick Isolated Power Module for ATE Applications

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Features and Benefits

  • Implements an active clamp flyback controller (ADP1074) to deliver 30 W of output power that can be extended to 60W with an external fan.
  • Integrates the LTC7106 for accurate digital voltage telemetry and the LT3062 for auxiliary supply generation.
  • Achieves all functionality within a 16th brick DOSA compliant footprint.
  • Supports a 48 V input and a wide programmable output voltage range of 30–60 V.
  • Addresses key design challenges, including <7 mm module height, wide output voltage programmability, and digital control/output monitoring for telemetry.

ATE Solution Requirements:

  • External Input Voltage: 48V
  • Output Voltage: 30-60V
  • Output Power: 30W, 60W with Fan
  • Power Architecture: Active clamp flyback architecture
  • Built-in LTC7106 voltage telemetry
  • LT3062 enables auxiliary power supply generation
  • Protection Features: Built-in ADP1074 UVLO, OVP, OCP, short, and hiccup

ATE System Requirements:

  • Regulatory Approvals: DOSA standard size and pinouts for 16th brick (33mmx22.9mmx7mm )
  • Environmental requirements: (Default is -40C to 85C)
  • Isolation requirements: >1000Vrms
  • Telemetry Requirements: Digital Interface (PMBUS) for voltage output and control

Stratix 10 GX PCIE FPGA Development Kit
Stratix 10 GX PCIE FPGA Development Kit
Stratix 10 GX PCIE FPGA Development Kit Block Diagram
Stratix 10 GX PCIE FPGA Development Kit (Recommended Simplified Power Tree: 12Vin to required I/O voltages)
Stratix 10 GX PCIE FPGA Development Kit (Actual Power Tree representative of components used on board)
Intel Stratix 10 FPGA PCIe Development Kit Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
  • The actual power tree represents the best solution at time of design.
  • A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX PCIe development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations an alternate power tree that allow for direct power conversion from 12V input is provided below.
ADPS40091-RD Instrumentation Power Solution
30W 16th brick Isolated Power Module for ATE Applications
ADPS40091-RD Power Tree
ADPS40091 Board Illustration
Intel Stratix 10 FPGA PCIe Development Kit
Stratix 10 GX PCIE FPGA Development Kit
Stratix 10 GX PCIE FPGA Development Kit Block Diagram
Stratix 10 GX PCIE FPGA Development Kit (Recommended Simplified Power Tree: 12Vin to required I/O voltages)
Stratix 10 GX PCIE FPGA Development Kit (Actual Power Tree representative of components used on board)

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