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ADP5040 - Micro PMU

General Description

The ADP5040 combines one high performance buck regulator and two low dropout regulators (LDO) in a small 20-lead LFCSP to meet demanding performance and board space requirements.

Key Features

  • Input voltage range: 2.3 V to 5.5 V One 1.2 A buck regulator Two 300 mA LDOs 20-lead, 4 mm × 4 mm LFCSP package Overcurrent and thermal protection Soft start Undervoltage lockout Buck key specifications Output voltage range: 0.8 V to 3.8 V Current mode topology for excellent transient response 3 MHz operating frequency Peak efficiency up to 96% Uses tiny multilayer inductors and capacitors Mode pin selects forced PWM or auto PWM/PSM modes 100% duty cycle low dropout mode LDOs key specifications.

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Data Sheet Micro PMU with 1.2 A Buck Regulator and Two 300 mA LDOs ADP5040 FEATURES Input voltage range: 2.3 V to 5.5 V One 1.2 A buck regulator Two 300 mA LDOs 20-lead, 4 mm × 4 mm LFCSP package Overcurrent and thermal protection Soft start Undervoltage lockout Buck key specifications Output voltage range: 0.8 V to 3.8 V Current mode topology for excellent transient response 3 MHz operating frequency Peak efficiency up to 96% Uses tiny multilayer inductors and capacitors Mode pin selects forced PWM or auto PWM/PSM modes 100% duty cycle low dropout mode LDOs key specifications Output voltage range: 0.8 V to 5.2 V Low VIN from 1.7 V to 5.5 V Stable with 2.