LT8606LT8606B Series

42V, 350mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current

Catalog

42V, 350mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current

Part	Topology	Frequency - Switching [Max]	Frequency - Switching [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Voltage - Input (Min) [Min]	Supplier Device Package	Function	Package / Case	Current - Output	Number of Outputs	Output Type	Output Configuration	Mounting Type	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Package / Case
Analog Devices LT8606BEDC#TRPBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	8-DFN (2x2)	Step-Down	8-WFDFN Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V
Analog Devices LT8606EDC#TRPBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	8-DFN (2x2)	Step-Down	8-WFDFN Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V
Analog Devices LT8606HMSE#PBF	Buck	2 MHz	200 kHz	-40 °C	150 °C	1.8 V	3 V	10-MSOP-EP	Step-Down	10-MSOP 10-TFSOP Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V	0.118 in 3 Lead
Analog Devices LT8606HMSE#TRPBF	Buck	2 MHz	200 kHz	-40 °C	150 °C	1.8 V	3 V	10-MSOP-EP	Step-Down	10-MSOP 10-TFSOP Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V	0.118 in 3 Lead
Analog Devices LT8606EMSE#PBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	10-MSOP-EP	Step-Down	10-MSOP 10-TFSOP Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V	0.118 in 3 Lead
Analog Devices LT8606HDC#TRMPBF	Buck	2 MHz	200 kHz	-40 °C	150 °C	1.8 V	3 V	8-DFN (2x2)	Step-Down	8-WFDFN Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V
Analog Devices LT8606IDC#TRPBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	8-DFN (2x2)	Step-Down	8-WFDFN Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V
Analog Devices LT8606BIDC#TRMPBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	8-DFN (2x2)	Step-Down	8-WFDFN Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V
Analog Devices LT8606BEDC#TRMPBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	8-DFN (2x2)	Step-Down	8-WFDFN Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V
Analog Devices LT8606EMSE#TRPBF	Buck	2 MHz	200 kHz	-40 °C	125 ¯C	1.8 V	3 V	10-MSOP-EP	Step-Down	10-MSOP 10-TFSOP Exposed Pad	350 mA	1	Adjustable	Positive	Surface Mount	42 V	12 V	0.118 in 3 Lead

Catalog

42V, 350mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current

Key Features

• Wide Input Voltage Range: 3.0V to 42V

• Ultralow Quiescent Current Burst Mode®Operation:<3μA IQRegulating 12VINto 3.3VOUTOutput Ripple <10mVP-P

• <3μA IQRegulating 12VINto 3.3VOUT

• Output Ripple <10mVP-P

• High Efficiency 2MHz Synchronous Operation:>92% Efficiency at 0.35A, 12VINto 5VOUT

• >92% Efficiency at 0.35A, 12VINto 5VOUT

• 350mA Maximum Continuous Output

• Fast Minimum Switch-On Time: 35ns

• Adjustable and Synchronizable: 200kHz to 2.2MHz

• Spread Spectrum Frequency Modulation for Low EMI

• Allows Use of Small Inductors

• Low Dropout

• Peak Current Mode Operation

• Accurate 1V Enable Pin Threshold

• Internal Compensation

• Output Soft-Start and Tracking

• Small Thermally Enhanced 10-Lead MSOP Package or 8-Pin 2mm × 2mm DFN Package

• AEC-Q100 Qualified for Automotive Applications

Description

The LT8606 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 1.7μA of non-switching quiescent current. The LT8606 can deliver 350mA of continuous current. Low ripple Burst Mode operation enables high efficiency down to very low output currents while keeping the output ripple below 10mVP-P. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program VINundervoltage lockout or to shut down the LT8606. The PG pin signals when VOUTis within ±8.5% of the programmed output voltage as well as fault conditions.The MSOP package includes a SYNC pin to synchronize to an external clock, or to select Burst Mode operation or pulse-skipping with or without spread-spectrum; the TR/SS pin programs soft-start or tracking. The DFN package omits these pins and can be purchased in pulse-skipping or Burst Mode operation variety.ApplicationsGeneral Purpose Step-Down ConverterLow EMI Step Down