Datasheet Analog Devices LTM4691IV#PBF — 数据表

LTM4691
Low VIN, High Efficiency, Dual 2A
Step-Down DC/DC µModule Regulator
FEATURES DESCRIPTION Tiny Surface Mount, Low Profile 3mm × 4mm ×
1.18mm LGA Package
n Input Voltage Range: 2.25V to 3.6V
n Dual 2A DC Output Current
n ±1.5% Total Output Voltage Regulatio Current Mode Control, Fast Transient Response
n External Frequency Synchronizatio 180° Out-of-Phase Operatio Selectable Pulse-Skipping Mode/Burst Mode®
Operation/Forced Continuous Mode
n Power Good Indicator
n Internal Soft-Start
n Internal Compensatio Overvoltage, Overcurrent and Overtemperature
Protection The LTM®4691 is a complete dual 2A output switching mode DC/DC power supply in a tiny 3mm × 4mm
× 1.18mm LGA package. Included in the package are
the switching controller, power FETs, inductors and all
supporting components. Operating over an input voltage
range of 2.25V to 3.6V, the LTM4691 supports two outputs with programmable output voltage range from 0.5V
to 2.5V set by external resistors. Its high efficiency design
delivers up to 2A continuous current on each output. Only
bulk input and output capacitors are needed. n The LTM4691 operates in forced continuous mode for low
noise pulse-skipping mode or Burst Mode operation for
high efficiency at lights loads. The typical buck switching …