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The PAM2306 is a dual step-down current-mode, DC-DC converter. At heavy load, the constant frequency PWM control provides excellent stability and transient response. To ensure the longest battery life in portable applications, the PAM2306 provides a power - saving Pulse-Skipping Modulation (PSM) mode to reduce quiescent current under light load operation. The PAM2306 supports a range of input voltages from 2.5V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/NiMH cell, USB, and other standard power sources. The dual output voltages are available for 3.3V, 2.8V, 2.5V, 1.8V, 1.5V, 1.2V or adjustable. All versions employ internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 0.1A. Other key features include under-voltage lockout to prevent deep battery discharge.


  • Cellular Phone
  • Portable Electronics
  • Personal Information Appliances
  • Wireless and DSL Modems
  • MP3 Players
  • Product Specifications

    Product Parameters

    Compliance(Only Automotive supports PPAP) Standard
    Type Buck
    Minimum Input Voltage (V) 2.5
    Maximum Input Voltage (V) 5.5
    Output Current (A) 1
    Minimum Output Voltage (V) 1.8
    Maximum Output Voltage (V) 3.3
    Quiescent Current Typ (µA) 40
    Shutdown Current Typ (µA) 0.1
    Frequency Typ (kHz) 1500
    HS RDS(ON) (mΩ) 300
    LS RDS(ON) (mΩ) 350

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    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2594 2022-08-31 2023-02-28 Device End of Life (EOL)
    PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site