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The PAM242x devices are high-performance, fixed frequency, current-mode PWM step-up DC-DC converters that incorporate internal power MOSFETs. The PAM242x includes an integrated power MOSFET that supports peak currents of up to 3A/4.5A/5.5A.

The PAM242x utilizes simple external loop compensation allowing optimization between component size, cost and AC performance across a wide range of applications. Additional functions include an externally programmable soft-start function for easy inrush current control, internal over-voltage protection (OVP), cycle-by-cycle current limit protection, undervoltage lockout and thermal shutdown.

The PAM242x is available in the small SO-8EP package.


  • TFT LCD Monitors
  • Battery-Powered Equipment
  • Set-Top Boxes
  • DSL and Cable Modems and Routers


  • Greater than 90% Efficiency
  • Adjustable Output Voltage Up to 24V
  • Internal 24V Power MOSFET
  • Peak Current 3A,4.5A,5.5A
  • 520kHz Frequency
  • Built-In Overvoltage Protection (OVP)
  • Open Protection
  • Programmable Soft-Start Function
  • Thermal Shutdowns
  • UnderVoltage Lockout
  • Overcurrent Protection
  • SO-8EP Package

Product Specifications

Product Parameters

Minimum Input Voltage 2.7 V
Maximum Input Voltage 5.5 V
Minimum Output Voltage 2.7 V
Maximum Output Voltage 24 V
HS RDS(ON) 100 mΩ
LS RDS(ON) 70 mΩ
Quiescent Current Typ 0.25 mA
Shutdown Current Typ 0.1 µA
Type Boost
Output Current 3 A
Frequency Typ 520, 520K Hz
Efficiency 90 %

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Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
PAM2421AECADJR Mouser Electronics Inc. 1841 8/17/2018 Buy Now Americas
PAM2421AECADJR Arrow Electronics Central EU 2500 8/17/2018 Buy Now Europe, Middle East, Africa
PAM2421AECADJR Digi-Key Electronics 2960 8/17/2018 Buy Now Americas