PT6650 Series
5-A 12 /24-V Input Adjustable
Integrated Switching Regulator
SLTS038B -FEBRUARY 1999 - REVISED MARCH 2004
Features
• Single Device: 5-A Output
• Input Voltage Range: 9 V to 28 V
• 12 V / 24 V Input Compatible
• Adjustable Output Voltage
• 80 % Efficiency
• Output Remote Sense
• On/Off Standby Function
Ordering Information
PT6651r = 3.3 Volts
PT6652r = 2.5 Volts
PT6653r = 5 Volts
PT6654r = 9 Volts
PT6655r = 15 Volts
PT6656r = 12 Volts
Description
The PT6650 power modules are a series
of high efficiency, non-isolated step-down
integrated switching regulators (ISRs).
These regulators are designed to operate
over a 9 V to 28 V input voltage range to
produce a tightly regulated output voltage
at load currents of up to 5 A. The wide
input voltage range allows them to oper-
ate off either a 12 V or 24 V DC input
bus system, making them ideal for general
purpose and industrial applications. The
series includes standard output voltage
options ranging from 15 V down to 2.5 V,
and down to 1.8 V with adjustment. Only
two external capacitors are required for
proper operation.
Note: Back surface
of product is
conducting metal
Pin-Out Information
Pin Function
PT Series Suffix
(PT1234x)
Case/Pin
Order
Package
Configuration
Suffix
Code *
1
2
3
Remote Sense
Do Not Connect
STBY*
Vertical
Horizontal
SMD
P
D
E
(EED)
(EEA)
(EEC)
(EEM)
(EEL)
(EEQ)
(EEF)
(EEE)
(EEG)
(EEK)
4
5
6
V
in
V
in
V
in
Horizontal, 2-Pin Tab
SMD, 2-Pin Tab
M
L
7
8
9
10
11
12
13
14
GND
GND
GND
GND
Horizontal, 2-Pin Ext Tab
SMD, 2-Pin Ext Tab
Vertical, Side Tab
Horizontal, Side Tab
SMD, Side Tab
Q
F
R
G
B
The PT6650 series is housed in a low-
cost 14-pin SIP (Single In-line Package) and
is available in both vertical and horizontal
configurations, including surface-mount.
V
V
V
V
out
out
out
* Previously known as package styles 400/410.
(Reference the applicable package code drawing for the
dimensions and PC board layout)
Adjust *
o
*
For further information, see
application notes.
Standard Application
VoAdjust
VoSense
14
1
VIN
VOUT
4,5,6
11,12,13
PT6650
3
7–10
CIN
COUT
LOAD
560 µF
330 µF
(Required)
(Required)
COM
COM
Cin = Required 560 µF electrolytic
Cout = Required 330 µF electrolytic
For technical support and further information, visit http://power.ti.com