LT3688EFE#PBF Multiple Output Buck Regulators by Analog Devices

Status: Production
Series: LT3688
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3688 is an adjustable frequency (350kHz to 2.2MHz) dual monolithic step-down switching regulator with two power-on reset timers and a watchdog timer. The regulator operates off inputs up to 36V. Low ripple Burst Mode® operation maintains high efficiency at low output current while keeping output ripple below 25mV in a typical application, with input quiescent current of just 115μA. Shutdown circuitry reduces input supply current to less than 1μA while EN/UVLO is pulled low. The reset and watchdog timeout periods are both adjustable using external capacitors. Tight accuracy specifications and glitch immunity ensure reliable reset operation without false triggering. The open collector RST pins will pull down if the monitored output voltage drops 10% below the programmed value. The LT3688 watchdog timer monitors for watchdog falling edges grouped too close together or too far apart. The LT3688 is available in 24-Pin TSSOP and 4mm × 4mm QFN packages, each with an exposed pad for low thermal resistance.

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Prices starting from US$5.15

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Features

Wide Input Range:
Operation from 3.8V to 36V
Low Ripple (<25mVP-P ) Burst Mode Operation:
IQ = 115μA at 12VIN to 3.3V and 5V
Programmable, Defeatable Window Watchdog Timer
Two Independently Programmable Power-On-Reset Timers
Synchronizable, Adjustable 350kHz-2.2MHz Switching Frequency
Two 800mA Output Switching Regulators with Internal Power Switches
Programmable Input Undervoltage Lockout with Hysteresis
Thermally Enhanced 24-Pin TSSOP and 4mm × 4mm QFN Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

2x 800mA Buck Sw Reg w/ Pwr-On | Analog Devices
DC/DC CONV, BUCK, 2.35MHZ, 125DEG C | element14
Conv DC-DC 3.8V to 36V Step Down Dual-Out 0.8V to 32.4V 0.8A/0.8A 24-Pin TSSOP EP Tube | Richardson RFPD


LT3688EFE#PBF Semiconductors - ICs by Linear Technology

DC-DC CONVERTER 2.2MHZ 0.8A TSSOP-24

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

Specifications

Input Voltage Min 3.8V
Input Voltage Max 36V
No. of Outputs 2 Output, 2Outputs
DC / DC Converter IC Case TSSOP
No. of Pins 24Pins
Output Current - Output 1 800mA
Output Current - Output 2 800mA
Output Voltage - Output 1 28.8V
Output Voltage - Output 2 28.8V
Regulator Output Type Adjustable
Switching Frequency 2.35MHz
Topology Buck (Step Down)
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Current 800mA
Primary Input Voltage 36V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3688EFE#PBF?

Additional datasheets, footprints and schematics for LT3688EFE#PBF are listed on our Part Details page. You can also find images and similar parts to LT3688EFE#PBF on this page.

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What category does LT3688EFE#PBF fall under?

The LT3688EFE#PBF is listed under Multiple Output Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LT3688EFE#PBF when available in the Multiple Output Buck Regulators range under the specifications section at the bottom of the details page.

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Is the LT3688EFE#PBF RoHS compliant?

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

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Authorised distributors including Analog Devices, element14, Farnell and Richardson RFPD have stock available or on a lead time for LT3688EFE#PBF.

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