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LTC3779 Datasheet

Part Number LTC3779
Manufacturers Analog Devices
Logo Analog Devices
Description 4-Switch Buck-Boost Controller
Datasheet LTC3779 DatasheetLTC3779 Datasheet (PDF)

LTC3779 150V VIN and VOUT Synchronous 4-Switch Buck-Boost Controller FEATURES DESCRIPTION nn 4-Switch Current Mode Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT nn Wide VIN Range: 4.5V to 150V nn Wide Output Voltage Range: 1.2V ≤ VOUT ≤ 150V nn Synchronous Rectification: Up to 99% Efficiency nn ±1% 1.2V Voltage Reference nn Input or Output Average Current Limit nn Onboard LDO or External NMOS LDO for DRVCC nn 36V EXTVCC LDO Powers Drivers nn Programmable 6V to 10V DRV.

  LTC3779   LTC3779






Part Number LTC3778
Manufacturers Linear Technology
Logo Linear Technology
Description Step-Down Controller
Datasheet LTC3779 DatasheetLTC3778 Datasheet (PDF)

LTC3778 Wide Operating Range, No RSENSETM Step-Down Controller FEATURES s s s s s s s s s s s s s s s s DESCRIPTIO U APPLICATIO S s s s s s Wide VIN Range: 4V to 36V Sense Resistor Optional True Current Mode Control 2% to 90% Duty Cycle at 200kHz tON(MIN) ≤ 100ns Stable with Ceramic COUT Dual N-Channel MOSFET Synchronous Drive Power Good Output Voltage Monitor ±1% 0.6V Reference Adjustable Current Limit Adjustable Switching Frequency Programmable Soft-Start Output Overvoltage Protection Optio.

  LTC3779   LTC3779







Part Number LTC3777
Manufacturers Analog Devices
Logo Analog Devices
Description 4-Switch Buck-Boost Controller
Datasheet LTC3779 DatasheetLTC3777 Datasheet (PDF)

LTC3777 150V VIN and VOUT Synchronous 4-Switch Buck-Boost Controller + Switching Bias Supply FEATURES DESCRIPTION nn 4-Switch Current Mode Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT nn Wide VIN Range: 4.5V to 150V nn Wide Output Voltage Range: 1.2V ≤ VOUT ≤ 150V nn Synchronous Rectification: Up to 99% Efficiency nn ±1% 1.2V Voltage Reference nn Input or Output Average Current Limit nn Integrated 12µA IQ, 150V, 85mA, Switching Bias for Optimal Thermal Performance nn.

  LTC3779   LTC3779







Part Number LTC3776
Manufacturers Linear Technology
Logo Linear Technology
Description No RSENSE Synchronous Controller
Datasheet LTC3779 DatasheetLTC3776 Datasheet (PDF)

U U FEATURES ■ No Current Sense Resistors Required ■ Out-of-Phase Controllers Reduce Required Input Capacitance ■ VOUT2 Tracks 1/2 VREF ■ Symmetrical Source/Sink Output Current Capability (VOUT2) ■ Spread Spectrum Operation (When Enabled) ■ Wide VIN Range: 2.75V to 9.8V ■ Constant Frequency Current Mode Operation ■ 0.6V ±1.5% Voltage Reference (VOUT1) ■ Low Dropout Operation: 100% Duty Cycle ■ True PLL for Frequency Locking or Adjustment ■ Internal Soft-Start Circuitry ■ Power Good Output Volta.

  LTC3779   LTC3779







Part Number LTC3775
Manufacturers Linear Technology
Logo Linear Technology
Description High Frequency Synchronous Step-Down Voltage Mode DC/DC Controller
Datasheet LTC3779 DatasheetLTC3775 Datasheet (PDF)

FEATURES n Wide VIN Range: 4.5V to 38V n Line Feedforward Compensation n Low Minimum On-Time: tON(MIN) < 30ns n Powerful Onboard MOSFET Drivers n Leading Edge Modulation Voltage Mode Control n ±0.75%, 0.6V Reference Voltage Accuracy Over Temperature n VOUT Range: 0.6V to 0.8VIN n Programmable, Cycle-by-Cycle Peak Current Limit n Sense Resistor or RDS(ON) Current Sensing n Programmable Soft-Start n Synchronizable Fixed Frequency from 250kHz to 1MHz n Selectable Pulse-Skipping or Forced Continuous.

  LTC3779   LTC3779







4-Switch Buck-Boost Controller

LTC3779 150V VIN and VOUT Synchronous 4-Switch Buck-Boost Controller FEATURES DESCRIPTION nn 4-Switch Current Mode Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT nn Wide VIN Range: 4.5V to 150V nn Wide Output Voltage Range: 1.2V ≤ VOUT ≤ 150V nn Synchronous Rectification: Up to 99% Efficiency nn ±1% 1.2V Voltage Reference nn Input or Output Average Current Limit nn Onboard LDO or External NMOS LDO for DRVCC nn 36V EXTVCC LDO Powers Drivers nn Programmable 6V to 10V DRVCC Optimizes Efficiency nn No Top FET Refresh Noise in Boost or Buck Mode nn VOUT Disconnected from VIN During Shutdown nn Phase-Lockable Fixed Frequency (50kHz to 600kHz) nn No Reverse Current During Start-Up nn Power Good Output Voltage Monitor nn 150V Rated RUN Pin with Accurate Turn-On Threshold nn Programmable Input Overvoltage Lockout nn Thermally Enhanced FE38 TSSOP Package Modified for High Voltage Operation APPLICATIONS The LTC®3779 is a high performance buck-boost switching regu.


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