Diodes PAM2423 - Manual

PAM2421/PAM2422/PAM2423
Document number: DSxxxxx Rev. 1 - 1
1 of 10
www.diodes.com
November 2012
© Diodes Incorporated
PAM2421/ PAM2422/ PAM2423
A Product Line of
Diodes Incorporated
3A, 4.5A, 5.5A PWM STEP-UP DC-DC CONVERTER
Description
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, under voltage lock-out and thermal shutdown.
The PAM242x is available in the small SOP-8(EP) package.
Features
 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 Over-Voltage Protection (OVP)
 Open Protection
 Programmable Soft-Start Function
 Thermal Shutdowns
 Under-Voltage-Lockout
 Over-Current
Protection
 SOP-8(EP) Package
Pin Assignments
Applications
 TFT LCD Monitors
 Battery-Powered Equipment
 Set-Top Boxes
 DSL and Cable Modems and Routers
Typical Applications Circuit