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ISL9305 - 3MHz Dual Step-Down Converters and Dual Low-Input LDOs

General Description

MANUFACTURER PART NUMBER SPECIFICATIONS L1, L2 Inductor Sumida CDRH2D14NP-1R5 1.5µH/1.80A/50mΩ C1 Input capacitor Murata GRM21BR60J106KE19L 10µF/6.3V C2, C3 Input capacitor Murata GRM185R60J105KE26D 1µF/6.3V C4, C5 Output capacitor Murata GRM219R60J475KE01D 4.7µF/6.3V C6, C7 Output c

Key Features

  • Dual 800mA, Synchronous Step-down Converters and Dual 300mA, General-purpose LDOs.
  • Input Voltage Range - DCD1/DCD2.
  • . . . 2.3V to 5.5V - LDO1/LDO2.
  • . . . 1.5V to 5.5V.
  • 400kb/s I2C-bus Series Interface Transfers the Control Data Between the Host Controller and the ISL9305.
  • Adjustable Output Voltage - VODCD1/VODCD2.
  • . . . . 0.8V to VIN.

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Datasheet Details

Part number ISL9305
Manufacturer Renesas
File Size 896.10 KB
Description 3MHz Dual Step-Down Converters and Dual Low-Input LDOs
Datasheet download datasheet ISL9305 Datasheet

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Full PDF Text Transcription (Reference)

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DATASHEET ISL9305 3MHz Dual Step-Down Converters and Dual Low-Input LDOs with I2C Compatible Interface FN7605 Rev 2.00 February 9, 2015 The ISL9305 is an integrated mini Power Management IC (mini-PMIC) ideal for applications of powering low-voltage microprocessor or multiple voltage rails with battery as input sources, such as a single Li-ion or Li-Polymer. ISL9305 integrates two high-efficiency 3MHz synchronous step-down converters (DCD1 and DCD2) and two low-input, low-dropout linear regulators (LDO1 and LDO2). The 3MHz PWM switching frequency allows the use of very small external inductors and capacitors. Both step-down converters can enter skip mode under light load conditions to further improve the efficiency and maximize the battery life.