LT1579CS-5#PBF Positive Linear Regulators (LDO) by Analog Devices

Status: Production
Series: LT1579
RoHS: Compliant
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The LT1579 is a dual input, single output, low dropout regulator. This device is designed to provide an uninterruptible output voltage from two independent input voltage sources on a priority basis. All of the circuitry needed to switch smoothly and automatically between inputs is incorporated. The LT1579 can supply 300mA of output current from either input at a dropout voltage of 0.4V. Quiescent current is 50µA, dropping to 7µA in shutdown. Two comparators are included to monitor input voltage status. Two additional status flags indicate which input is supplying power and provide an early warning against loss of output regulation when both inputs are low. A secondary select pin is provided so that the user can force the device to switch from the primary input to the secondary input. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting and reverse-current protection.The device is available in fixed output voltages of 3V, 3.3V and 5V, and as an adjustable device with a 1.5V reference voltage. The LT1579 regulators are available in narrow 16-lead SO and 16-lead SSOP packages with all features, and in SO-8 with limited features.

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Features

Maintains Output Regulation with Dual Inputs
Dropout Voltage: 0.4V
Output Current: 300mA
50µA Quiescent Current
No Protection Diodes Needed
Two Low-Battery Comparators
Status Flags Aid Power Management
Adjustable Output from 1.5V to 20V
Fixed Output Voltages: 3V, 3.3V and 5V
7µA Quiescent Current in Shutdown
Reverse-Battery Protection
Reverse Current Protection
Remove, Recharge and Replace Batteries Without Loss of Regulation

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Alternative Descriptions

LDO Regulator Pos 5V 0.3A 16-Pin SOIC N Tube | Richardson RFPD


LT1579CS-5#PBF Power Management ICs - PMIC by Linear Technology

V REG LDO +5.0V SMD SOIC16 1579

Status: Unknown
Series: 5V 300mA LDO Voltage Regulators
RoHS: Unknown
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Specifications

Output Type Fixed
Input Voltage Min 2.7V
Input Voltage Max 20V
Fixed Output Voltage Nom. 5V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Output Current 300mA
Dropout Voltage Vdo 400mV
LDO Regulator Case Style SOIC
No. of Pins 16Pins
Operating Temperature Min 0°C
Operating Temperature Max 125°C
Product Range 5V 300mA LDO Voltage Regulators
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1579
No. of Outputs 1Outputs
Operating Temperature Range 0°C to +125°C
Output Current Max 0.3A
Output Voltage Nom. 5V
Primary Input Voltage 20V
Supply Voltage Min 6V
Termination Type Surface Mount Device
Voltage Regulator Type Dual-In-Single-Out LDO

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT1579CS-5#PBF?

Additional datasheets, footprints and schematics for LT1579CS-5#PBF are listed on our Part Details page. You can also find images and similar parts to LT1579CS-5#PBF on this page.

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What category does LT1579CS-5#PBF fall under?

The LT1579CS-5#PBF is listed under Positive Linear Regulators (LDO).

Can I view similar or alternative parts?

You can view similar parts to LT1579CS-5#PBF when available in the Positive Linear Regulators (LDO) range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the LT1579CS-5#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT1579CS-5#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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Authorised distributors including Richardson RFPD have stock available or on a lead time for LT1579CS-5#PBF.

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