LTC3823IUH#PBF External Power Switch Buck Controllers by Analog Devices

Status: Production
Series: LTC3823
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3823 is a synchronous step-down switching regulator controller with true remote differential output sensing and output voltage up/down tracking capability. Its advanced functions and high accuracy reference are ideal for powering high performance server, ASIC and computer memory systems. The LTC3823 uses a constant on-time, valley current mode control architecture to deliver very low duty factors without requiring a sense resistor. The operating frequency is selected by an external resistor and is compensated for variations in input supply voltage. An internal phase-locked loop allows the IC to be synchronized to an external clock. Fault protection is provided by an overvoltage comparator and input undervoltage lockout. The regulator current limit is user programmable. A wide supply range allows voltages as high as 36V to be stepped down to as low as a 0.6V output. When using remote sense, output voltages up to 3.3V can be developed, and up to 90% of VIN without remote sense. Power supply sequencing is accomplished using an external soft-start timing capacitor.

Where to Buy

Prices starting from US$3.53

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$3.53
3,477
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$4.56
-
Buy Now

Features

Wide VIN Range: 4.5V to 36V
±0.67%, 0.6V Reference Voltage
Output Voltage Tracking Capability
True Remote Sensing Differential Amplifier
Sense Resistor Optional
True Current Mode Control
2% to 90% Duty Cycle at 200kHz
tON(MIN) < 100ns
Phase-Locked Loop Frequency Synchronization
Powerful Dual N-Channel MOSFET Driver
Adjustable Cycle-by-Cycle Current Limit
Adjustable Switching Frequency
Programmable Soft-Start
Current Foldback Protection (Disabled at Start-Up)
Output Overvoltage Protection
Micropower Shutdown: 30μA
Power Good Output Voltage Monitor Tracks the Reference Input Pin
Available in (5mm × 5mm) 32-Lead QFN and 28-Lead SSOP Narrow Packages

Alternative Descriptions

Fast No Rs Buck Sync DC/DC Cnt | Analog Devices
POWER MANAGEMENT IC | Richardson RFPD


LTC3823IUH#PBF Semiconductors - ICs by Linear Technology

IC BUCK SYNC ADJ 32QFN

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 4.5V
Supply Voltage Max 36V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 90%
Controller IC Case Style QFN
No. of Pins 32Pins
Switching Frequency 200kHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 3823
Operating Temperature Range -40°C to +85°C
Output Current 10A
Output Voltage 32.4V
Primary Input Voltage 36V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3823IUH#PBF?

Additional datasheets, footprints and schematics for LTC3823IUH#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3823IUH#PBF on this page.

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What category does LTC3823IUH#PBF fall under?

The LTC3823IUH#PBF is listed under External Power Switch Buck Controllers.

Can I view similar or alternative parts?

You can view similar parts to LTC3823IUH#PBF when available in the External Power Switch Buck Controllers range under the specifications section at the bottom of the details page.

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Is the LTC3823IUH#PBF RoHS compliant?

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

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Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for LTC3823IUH#PBF.

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