PT6446 Datasheet: 6-A 5-V/3.3-V Input Adjustable Integrated Switching Regulator





PT6446 6-A 5-V/3.3-V Input Adjustable Integrated Switching Regulator Datasheet

Part Number PT6446
Description 6-A 5-V/3.3-V Input Adjustable Integrated Switching Regulator
Manufacture Power Trend
Total Page 10 Pages
PDF Download Download PT6446 Datasheet PDF

Features: PT6440 Series 6-A 5-V/3.3-V Input Adjust able Integrated Switching Regulator Fe atures • 6A Output Current • Input Voltage Range: 3.1 V to 5.5 V • 90% E fficiency • Adjustable Output Voltage • Standby Function • Short Circuit Protection • Small Footprint (0.61 i n2) • 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 Regula tors (ISRs), housed in a thermally effi cient solderable copper case. These mod ules operate from input voltages as low as 3.1V to produce a high-output lowvo ltage power source; ideal for powering the industry’s latest DSP and micropr ocessors. The series includes standard output bus voltages as low as 1.0VDC. T he innovative copper case construction provides superior thermal performance i n a small footprint. Both through-hole and surface mount pin configurations ar e available. The PT6440 series operating features include external output voltage adj.

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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 low-
voltage 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 avail-
able. 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 styles 1540/50.
(Reference the applicable package code drawing
for the dimensions and PC board layout)
Pin-Out Information
Pin Function
1 Inhibit *
2 Vin
3 Vin
4 Vin
5 GND
6 GND
7 GND
8 GND
9 Vout
10 Vout
11 Vout
12 Vout Adj *
* For further information, see
application notes.
Standard Application
+VIN
2,3,4
+
C IN
INH
GND
12
PT6440
9,10,11
VO(ADJ)
+VOUT
1
5,6,7,8
C OUT
+
GND
Cin = Required 100µF electrolytic
Cout = Required 330µF electrolytic
For technical support and more information, see inside back cover or visit www.ti.com

                    
        






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