LT3685EMSE#PBF Internal Power Switch Buck Regulators by Analog Devices

Status: Production
Series: LT3685
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3685 is an adjustable frequency (200kHz to 2.4MHz) monolithic step-down switching regulator that accepts input voltages up to 38V operating and 60V maximum. An internal overvoltage protection circuit turns off the power switch when VIN is above 38V typical (36V minimum) which then allows the part to safely withstand 60V transients. A high efficiency 0.25Ω 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. The LT3685’s high operating frequency allows the use of small, low cost inductors and ceramic capacitors resulting in low output ripple while keeping total solution size to a minimum. The low current shutdown mode 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 89% of the programmed output voltage. The LT3685 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$3.96

Distributor Stock
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Analog Devices
from US$5.15
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Chip One Stop
from US$3.96
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Newark Electronics
from US$6.16
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element14
from US$5.48
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Farnell
from US$4.98
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Richardson RFPD
from US$4.88
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Features

Wide Input Range:
Operation From 3.6V to 36V
Overvoltage Lockout Protects Circuit through
60V Transients
2A Maximum Output Current
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: 0.25Ω On-Resistance
0.790V Feedback Reference Voltage
Output Voltage: 0.79V to 20V
Soft-Start Capability
Small 10-Pin Thermally Enhanced MSOP and (3mm x 3mm) DFN Packages

Alternative Descriptions

36V, 2A, 2.4MHz Buck Sw Reg | Analog Devices
Dc/Dc Conv, Buck, 2.4Mhz, 125Deg C | Newark Electronics
DC/DC CONV, BUCK, 2.4MHZ, 125DEG C | element14
DC TO DC CONVERTER | Richardson RFPD


LT3685EMSE#PBF Semiconductors - ICs by Linear Technology

IC SW REG 38V 2A 2.4MHZ 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 36V
No. of Outputs 1Outputs
DC / DC Converter IC Case MSOP
No. of Pins 10Pins
Output Current 2A
Output Voltage Min 790mV
Output Voltage Max 20V
Switching Frequency 2.4MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Adjustable Output Voltage Min 0.79V
Base Number 3685
Frequency 2.4MHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Voltage 20V
Primary Input Voltage 36V
Supply Voltage Min 3.6V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down (Buck)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3685EMSE#PBF?

Additional datasheets, footprints and schematics for LT3685EMSE#PBF are listed on our Part Details page. You can also find images and similar parts to LT3685EMSE#PBF on this page.

What pricing and inventory information can I view?

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What category does LT3685EMSE#PBF fall under?

The LT3685EMSE#PBF is listed under Internal Power Switch Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LT3685EMSE#PBF when available in the Internal Power Switch Buck Regulators range under the specifications section at the bottom of the details page.

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Is the LT3685EMSE#PBF RoHS compliant?

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

Which authorised distributors for LT3685EMSE#PBF have stock available?

Authorised distributors including Analog Devices, Chip One Stop, Newark Electronics, element14 and Farnell have stock available or on a lead time for LT3685EMSE#PBF.

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