Datasheet Analog Devices LTC7810 — 数据表

LTC7810
150V Low IQ, Dual, 2-Phase
Synchronous Step-Down DC/DC Controller
FEATURES DESCRIPTION Wide VIN Range: 4.5V to 140V (150V Abs Max)
nn Wide Output Voltage Range: 1V ≤ V
OUT ≤ 60V
nn Low Operating I : 16μA (48V to 12V
Q
IN
OUT and 3.3VOUT)
nn Adjustable Gate Drive Level Up to 10V
nn Optional Spread Spectrum Operation
nn Very Low Dropout: 100% Duty Cycle Operation
nn Low I in Dropout: 78µA (One Channel On)
Q
nn R
SENSE or Inductor DCR Current Sensing
nn Out-of-Phase Controllers Reduce Required Input
Capacitance and Power Supply Induced Noise
nn Phase-Lockable Frequency (75kHz to 720kHz)
nn Programmable Fixed Frequency (50kHz to 750kHz)
nn Selectable Continuous, Pulse-Skipping, or Low Ripple
Burst Mode® Operation at Light Loads …

LTC7810
150V Low IQ, Dual, 2-Phase
Synchronous Step-Down DC/DC Controller
FEATURES n n DESCRIPTION Wide VIN Range: 4.5V to 140V (150V Abs Max)
Wide Output Voltage Range: 1V ≤ VOUT ≤ 60V
Low Operating IQ: 16ОјA (48VIN to 12VOUT and 3.3VOUT)
Adjustable Gate Drive Level Up to 10V
Optional Spread Spectrum Operation
Very Low Dropout: 100% Duty Cycle Operation
Low IQ in Dropout: 78ВµA (One Channel On)
RSENSE or Inductor DCR Current Sensing
Out-of-Phase Controllers Reduce Required Input
Capacitance and Power Supply Induced Noise
Phase-Lockable Frequency (75kHz to 720kHz)
Programmable Fixed Frequency (50kHz to 750kHz)
Selectable Continuous, Pulse-Skipping, or Low Ripple
Burst ModeВ® Operation at Light Loads
Onboard LDO or External NMOS LDO for DRVCC
EXTVCC LDO Powers Drivers from VOUT
Programmable Input Overvoltage Lockout
48-Lead (7mm Г— 7mm) eLQFP Package APPLICATIONS n The LTCВ®7810 is a high performance dual step-down DC/
DC switching regulator controller that drives all N-channel
synchronous power MOSFET stages that can operate …