Datasheet Analog Devices LTC1876EG#PBF — Datenblatt

LTC1876
High Efficiency, 2-Phase,
Dual Synchronous Step-Down Switching
Controller and Step-Up Regulator
DESCRIPTIO U FEATURES The LTC®1876 is a high performance triple output switching
regulator. It incorporates a dual step-down switching controller that drives all N-channel synchronous power MOSFET
stages. A step-up regulator with an internal 1A, 36V switch
provides the third output. Step-Down Controller
■ Out-of-Phase Controllers Reduce Required Input
Capacitance and Power Supply Induced Noise
■ Power Good Output Voltage Indicator
■ OPTI-LOOPTM Compensation Minimizes C
OUT
■ DC Programmed Fixed Frequency 150kHz to 300kHz
■ Wide V Range: 3.5V to 36V Operation
IN
■ Very Low Dropout Operation: 99% Duty Cycle
■ Adjustable Soft-Start Current Ramping
■ Latched Short-Circuit Shutdown with Defeat Option
■ Remote Output Voltage Sense and OV Protection
■ 5V and 3.3V Standby Regulators
■ Selectable Const. Freq. or Burst ModeTM Operation
Step-Up Regulator …