LT3015 Series

RECOMMENDED FOR NEW DESIGNS

1.5A, Low Noise, Negative Linear Regulator with Precision Current Limit

Data Sheet Product Selection Table
Part Models
126
1ku List Price
Starting From $3.21
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Part Details

  • Output Current: 1.5A
  • Dropout Voltage: 310mV
  • Precision Current Limit with Foldback
  • Low Output Noise: 60μVRMS (10Hz to 100kHz)
  • Low Quiescent Current: 1.1mA
  • Precision Positive or Negative Shutdown Logic
  • Fast Transient Response
  • Wide Input Voltage Range: –1.8V to –30V
  • Adjustable Output Voltage Range: –1.22V to –29.3V
  • Fixed Output Voltages: –2.5V, –3V, –3.3V, –5V, –12V, –15V
  • Controlled Quiescent Current in Dropout
  • <1μA Quiescent Current in Shutdown
  • Stable with 10μF Output Capacitor
  • Stable with Ceramic, Tantalum or Aluminum Capacitors
  • Thermal Limit with Hysteresis
  • Reverse Output Protection
  • 5-Lead TO-220 and DD-Pak, Thermally Enhanced 12-Lead MSOP and 8-Lead 3mm × 3mm × 0.75mm DFN Packages
LT3015 Series
1.5A, Low Noise, Negative Linear Regulator with Precision Current Limit
–5V, –1.5A, Low Noise Regulator Dropout Voltage Product Package 1 Product Package 2 Product Package 3 Product Package 4
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 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
High Voltage Hot Swap Controllers 1
LTC4261
PRODUCTION Negative Voltage Hot Swap Controllers with ADC and I²C Monitoring
Negative Linear Regulators (LDO) 1
LT3090
RECOMMENDED FOR NEW DESIGNS –36V, 600mA Negative Linear Regulator with Programmable Current Limit
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3015
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
DC1728A

LT3015 Demo Board | Low Noise, Negative Linear Regulator, Precision Current Limit, –1.8V ≤ VIN ≤ –30V, VOUT = –1.22/–2.5/–5/–12/–15V @ 1.5A

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Product Details

Demonstration circuit 1728A is an adjustable 1.5A negative linear regulator featuring the LT3015. This device supplies up to 1.5A of output current at a typical dropout voltage of 300mV. Operating quiescent current is typically 1.1mA and drops to < 1μA in shutdown. Quiescent current is also well controlled in dropout. In addition to fast transient response, the LT3015 exhibits very low output noise, making it ideal for noise-sensitive applications. A key feature of the LT3015 is the capability to supply a wide output voltage range. The DC1728A can be set to –1.22V, –2.5V, –5.0V, –12.0V, –15.0V, as well as a user selectable value.
DC1728A
LT3015 Demo Board | Low Noise, Negative Linear Regulator, Precision Current Limit, –1.8V ≤ VIN ≤ –30V, VOUT = –1.22/–2.5/–5/–12/–15V @ 1.5A
DC1728A Evaluation Board DC1728A Evaluation Board - Top View DC1728A Evaluation Board - Bottom View DC1728A - Schematic

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