Linear Technology LTC3890
The LTC3890 features a precision 0.8V reference and power good output indicators. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.| Part No. | LTC3890 |
|---|---|
| Datasheet | LTC3890 Download |
| Manufacturer |  Linear Technology |
| Description | 2-Phase Synchronous Step-Down DC/DC Controller |
| Buy | Stock & Price |
FEATURES
n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50µA (One Channel On) n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n RSENSE or DCR Current Sensing n Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n Phase-Lockable Frequency (75kHz to 850kHz) n Programmable Fixed Frequency (50kHz to 900kHz) n Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode® Operation at Light Loads n Selectable Current Limit n Very Low Dropout Operation: 99% Duty Cycle n Adjustable Output Voltage Soft-Start or Tracking n Power Good Output Voltage Monitors n Output Overvoltage Protection n Low Shutdown IQ : < 14µA n Internal LDO Powers Gate Drive from VIN or EXTVCC n No Current Foldback During Start-Up n Small Low Profile (0.75mm) 5mm × 5mm QFN Package n AEC-Q100 Qualified for AutomotiveAPPLICATIONS
APPLICATIONS
n Automotive Always-On Systems n Battery Operated Digital Devices n Distributed DC Power SystemsDESCRIPTION
The LTC®3890 is a high performance dual step-down switching regulator DC/DC controller that drives all N-channel synchronous power MOSFET stages.
