LT1964IDD - Analog Devices Inc.

Manufacturer Part Number

LT1964IDD

Manufacturer

Analog Devices

Introduction

The LT1964IDD is a high-performance, low dropout (LDO) linear regulator from Analog Devices. It is specifically designed for power management applications requiring a negative output voltage.

Product Features and Performance

Negative adjustable output voltage from -1.22V to -20V

Maximum output current of 200mA

Low dropout voltage of 0.49V at 200mA load

Quiescent current of 70 µA

PSRR of 54dB at 120Hz enhances noise immunity

Features enable for controlled operation

Protection against overcurrent, overtemperature, and reverse polarity ensures reliability

Operates in a wide temperature range from -40°C to 125°C

Product Advantages

High efficiency with low dropout voltage

Stable with low ESR ceramic capacitors

Minimal quiescent current for power-saving

Robust protection features increase product longevity

Suitable for battery-powered applications due to its low power consumption

Key Technical Parameters

Voltage - Input (Max): -20V

Voltage - Output (Min/Fixed): -1.22V

Voltage - Output (Max): -20V

Voltage Dropout (Max): 0.49V @ 200mA

Current - Output: 200mA

Current - Quiescent (Iq): 70 µA

Current - Supply (Max): 6 mA

PSRR: 54dB (120Hz)

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Protection against overcurrent and overtemperature

Reverse polarity protection

High reliability and stability across the operating temperature range

Compatibility

Designed for use with low ESR ceramic capacitors for improved performance

Versatile application potential due to its adjustable output voltage feature

Application Areas

Battery-powered devices

Portable electronics

Negative voltage rail generation in mixed-signal systems

Power supplies requiring low noise and high PSRR

Product Lifecycle

Status: Obsolete

Availability of replacements or upgrades should be checked with Analog Devices or authorized distributors

Several Key Reasons to Choose This Product

High-efficiency LDO suitable for critical power management roles

Flexibility in output voltage adjustment caters to a broad range of applications

Low quiescent current enhances battery life in portable applications

Robust built-in protection features ensure product durability under adverse conditions

Capable of operating in extreme temperatures makes it ideal for demanding environments