LT3972EMSE#PBF Micropower Buck Regulators by Analog Devices

Status: Production
Series: LT3972
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3972 is an adjustable frequency (200kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages up to 33V (62V Maximum). A high efficiency 95mΩ switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping output ripple below 15mV in a typical application. In addition, the LT3972 can further enhance low output current efficiency by drawing bias current from the output when VOUT is above 3V Shutdown reduces input supply current to less than 1μA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage. The LT3972 is available in 10-Pin MSOP and 3mm × 3mm DFN packages with exposed pads for low thermal resistance.

Where to Buy

Prices starting from US$6.85

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Analog Devices
from US$7.13
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Chip One Stop
from US$8.59
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Newark Electronics
from US$8.09
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element14
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Richardson RFPD
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Farnell
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Features

Wide Input Range:
Operation from 3.6V to 33V
Over-Voltage Lockout Protects Circuits Through 62V Transients
3.5A Maximum Output Current
Low Ripple (<15mVP-P) Burst Mode® Operation: IQ= 75μA at 12VIN to 3.3VOUT
Adjustable Switching Frequency: 200kHz to 2.4MHz
Low Shutdown Current: IQ < 1μA
Integrated Boost Diode
Synchronizable Between 250kHz to 2MHz
Power Good Flag
Saturating Switch Design: 95mΩ On-Resistance
Output Voltage: 0.79V to 30V
Thermal Protection
Soft-Start Capability
Small 10-Pin Thermally Enhanced MSOP and (3mm × 3mm) DFN Packages

Alternative Descriptions

33V, 3.5A, 2.4MHz Buck Sw Reg | Analog Devices
Dc/Dc Conv, Buck, 2.45Mhz, 125Deg C | Newark Electronics
DC/DC CONV, BUCK, 2.45MHZ, 125DEG C | element14
DC TO DC CONVERTER | Richardson RFPD


LT3972EMSE#PBF Semiconductors - ICs by Linear Technology

BUCK 33V 2.4MHZ 3.5A 10MSOP

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

Specifications

Topology Buck (Step Down)
Input Voltage Min 3.6V
Input Voltage Max 33V
No. of Outputs 1Outputs
DC / DC Converter IC Case MSOP
No. of Pins 10Pins
Output Current 3.5A
Output Voltage Min 790mV
Output Voltage Max 30V
Switching Frequency 2.7MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 3972
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Voltage 30V
Primary Input Voltage 33V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3972EMSE#PBF?

Additional datasheets, footprints and schematics for LT3972EMSE#PBF are listed on our Part Details page. You can also find images and similar parts to LT3972EMSE#PBF on this page.

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What category does LT3972EMSE#PBF fall under?

The LT3972EMSE#PBF is listed under Micropower Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LT3972EMSE#PBF when available in the Micropower Buck Regulators range under the specifications section at the bottom of the details page.

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Is the LT3972EMSE#PBF RoHS compliant?

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

Which authorised distributors for LT3972EMSE#PBF have stock available?

Authorised distributors including Analog Devices, Chip One Stop, Newark Electronics, element14 and Richardson RFPD have stock available or on a lead time for LT3972EMSE#PBF.

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