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LT8604

Analog Devices
Part Number LT8604
Manufacturer Analog Devices
Description High Efficiency 42V/120mA Synchronous Buck
Published Jun 13, 2021
Detailed Description LT8604/LT8604C High Efficiency 42V/120mA Synchronous Bucks FEATURES n High Efficiency 2MHz Synchronous Operation n > 90...
Datasheet PDF File LT8604 PDF File

LT8604
LT8604

Overview
LT8604/LT8604C High Efficiency 42V/120mA Synchronous Bucks FEATURES n High Efficiency 2MHz Synchronous Operation n > 90% Efficiency at 50mA, 12VIN to 5VOUT n Pin Selectable Forced Continuous or Burst Mode® Operation (LT8604C Only) n Ultralow Quiescent Current Burst Mode Operation n < 2.
5µA IQ Regulating 24VIN to 3.
3VOUT n Output Ripple < 10mVP-P n Wide Input Voltage Range: 3.
2V to 42V n Fast Minimum Switch-On Time: 35ns n Adjustable (All) and Synchronizable (LT8604C Only) Switching Frequency: 200kHz to 2.
2MHz n Accurate 1V Enable Pin Threshold (All) with Adjustable Hysteresis (LT8604C Only) n Internal Compensation n Output Soft-Start and Tracking n Small 12-Lead 2mm × 2mm LQFN (LT8604C) and Small 10-Lead 3mm × 2mm Side-Wettable DFN Package n AEC-Q100 Qualified for Automotive Applications (LT8604) APPLICATIONS n Industrial Sensors n Industrial Internet of Things n 4mA to 20mA Current Loops n Flow Meters n Automotive Housekeeping Supplies DESCRIPTION The LT®8604/LT8604C is a compact, high speed synchronous monolithic step-down switching regulator that delivers up to 120mA to the output with high efficiency at a constant frequency, even up to 2.
2MHz.
It accepts a wide input voltage range up to 42V and consumes only 2.
5µA of quiescent current when operating in Burst Mode.
Top and bottom power switches are included with all necessary circuitry to minimize the need for external components.
The LT8604C includes BST and INTVCC ceramic capacitors for a more compact solution while having SYNC/ MODE and HYST pins.
The SYNC/MODE pin selects the regulator’s operation between forced continuous mode, for predictive interference in sampling systems, Burst Mode, for increased efficiency at light loads or spread spectrum for Low EMI.
It also allows synchronization to an external clock to further increase signal to noise ratio in high-resolution acquisition systems.
A PG flag signals when VOUT is within ±7.
5% of the programmed output voltage and when in fault conditions.
Thermal sh...


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