LTC1625IGN#PBF External Power Switch Buck Controllers by Analog Devices

Status: Production
Series: LTC1625
RoHS: Compliant
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The LTC1625 is a synchronous step-down switching regulator controller that drives external N-Channel power MOSFETs using few external components. Current mode control with MOSFET VDS sensing eliminates the need for a sense resistor and improves efficiency. The frequency of a nominal 150kHz internal oscillator can be synchronized to an external clock over a 1.5:1 frequency range.Burst Modeâ„¢ operation at low load currents reduces switching losses and low dropout operation extends operating time in battery-powered systems. A forced continuous mode control pin can assist secondary winding regulation by disabling Burst Mode operation when the main output is lightly loaded.Fault protection is provided by foldback current limiting and an output overvoltage comparator. An external capacitor attached to the RUN/SS pin provides soft start capability for supply sequencing. A wide supply range allows operation from 3.7V (3.9V for LTC1625I) to 36V at the input and 1.19V to VIN at the output.

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Features

Highest Efficiency Current Mode Controller
No Sense Resistor Required
Stable High Current Operation
Dual N-Channel MOSFET Synchronous Drive
Wide VIN Range: 3.7V to 36V
Wide VOUT Range: 1.19V to VIN
±1% 1.19V Reference
Programmable Fixed Frequency with Injection Lock
Very Low Drop Out Operation: 99% Duty Cycle
Forced Continuous Mode Control Pin
Optional Programmable Soft Start
Pin Selectable Output Voltage
Foldback Current Limit
Output Overvoltage Protection
Logic Controlled Micropower Shutdown: IQ < 30µA
Available in 16-Lead Narrow SSOP and SO Packages


LTC1625IGN#PBF Semiconductors - ICs by Linear Technology

BUCK CNTRL ADJUSTABLE SSOP-16

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Supply Voltage Min 3.7V
Supply Voltage Max 36V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 99%
Controller IC Case Style SSOP
No. of Pins 16Pins
Switching Frequency 165kHz
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)
Operating Temperature Range -40°C to +85°C
Output Current 10A
Primary Input Voltage 36V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC1625IGN#PBF?

Additional datasheets, footprints and schematics for LTC1625IGN#PBF are listed on our Part Details page. You can also find images and similar parts to LTC1625IGN#PBF on this page.

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What category does LTC1625IGN#PBF fall under?

The LTC1625IGN#PBF is listed under External Power Switch Buck Controllers.

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Is the LTC1625IGN#PBF RoHS compliant?

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

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