PT6440 Series
6-A 5-V/3.3-V Input Adjustable Integrated Switching Regulator
Features
• 6A Output Current • Input Voltag...
PT6440 Series
6-A 5-V/3.3-V Input Adjustable Integrated Switching
Regulator
Features
6A Output Current Input Voltage Range:
3.1 V to 5.5 V 90% Efficiency Adjustable Output Voltage Standby Function Short Circuit Protection Small Footprint (0.61 in2) Solderable Copper Case 8.8 106 Hours MTBF
SLTS133B
Revised (1/30/2002)
Description
The PT6440 Excalibur™ power modules are a series of high performance Integrated Switching
Regulators (ISRs), housed in a thermally efficient solderable copper case. These modules operate from input voltages as low as 3.1V to produce a high-output lowvoltage power source; ideal for powering the industry’s latest DSP and microprocessors. The series includes standard output bus voltages as low as 1.0VDC.
The innovative copper case construction provides superior thermal performance in a small footprint. Both through-hole and surface mount pin configurations are available. The PT6440 series operating features include external output voltage adjustment, an On/Off inhibit, and short-circuit protection. A 100µF input, and 330µF output capacitor are required for proper operation.
Ordering Information
PT6441H = 3.3 Volts † PT6442H = 2.5 Volts † PT6443H = 2.0 Volts † PT6444H = 1.8 Volts † PT6445H = 1.5 Volts † PT6446H = 1.2 Volts † PT6447H = 1.0 Volts
† 3.3V Input Bus Capable
PT Series Suffix (PT1234x )
Case/Pin Configuration
Order Suffix
Package Code *
Vertical Horizontal SMD
N (EPH) A (EPJ) C (EPK)
* Previously known as package st...