鈥?/div>
On/Off Inhibit Function
Short Circuit Protection
Thermal Shutdown
Space-Saving package
Solderable Copper Case
Description
The PT5400 Excalibur鈩?power modules are a
series of high-performance integrated switching
regulators (ISRs) based on TI鈥檚 SWIFT (Switcher
With Integrated FET Technology) regulator ICs.
These ready-to-use modules are rated for up to
6 A of output current from input voltages as low
as 3.1 V, providing a convenient step-down power
source for the industry鈥檚 latest high-performance
DSPs and microprocessors. The series includes
output voltage options as low as 1.0 VDC.
The PT5400 modules are packaged in a 5-pin
thermally efficient copper case, which offers the
advantage of solderability along with a small foot-
print (0.355 in虜, suffix 鈥楴鈥?. Both through-hole and
surface mount pin configurations are available.
The product features external output voltage
adjustment, an on/off inhibit function, short cir-
cuit protection, and thermal shutdown. A 100-碌F
input capacitor is required for proper operation.
Ordering Information
Input Bus
5 V 3.3 V Pt No.
!
!
!
!
!
!
!
PT5401H
PT5402H
PT5408H
PT5403H
PT5404H
PT5405H
PT5406H
PT5407H
Vout
3.3 Volts
2.5 Volts
2.5 Volts
2.0 Volts
1.8 Volts
1.5 Volts
1.2 Volts
1.0 Volts
Pin-Out Information
Pin Function
1
2
3
4
5
Inhibit *
Vin
GND
V
o
V
o
Adjust
!
!
!
!
!
!
* For Inhibit pin:
Open = output enabled
Ground = output disabled
PT Series Suffix
(PT1234x )
Case/Pin
Configuration
Vertical
Horizontal
SMD
Order
Suffix
Package
Code
(EFK)
(EFL)
(EFM)
N
A
C
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Standard Application
V
O
ADJ
1
5
4
INH
+ V
IN
2
PT5400
3
+V
O
C
1
(Required)
+
C
2
(Optional)
+
GND
GND
C
1
= Required 100 碌F
C
2
= Optional 100 碌F
For technical support and further information, visit http://power.ti.com