
For assistance or to order, call (800) 531-5782
54
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
Single Device: 5A Output
Input Voltage Range: 9V to 28V
Adjustable Output Voltage
80% Efficiency
Remote Sense Capability
Standby Function
The PT6650 series is a new addi-
tion to Power Trends’ line of 24V bus
Integrated Switching Regulators
5 AMP 24V INPUT
INTEGRATED SWITCHING REGULATOR
PT6650
Series
Standard Application
C1 = Required 100F electrolytic
C2 = Required 330F electrolytic
Q1= NFET-or Open Collector Gate
PT6650
4,5,6
7,8,9,10
11,12,13
V
IN
COM
V
OUT
C
2
+
C
1
+
1
3
STBY
Q
1
REMOTE SENSE
LOAD
Ordering Information
PT6651
¨ = +3.3 Volts
PT6652
¨ = +2.5 Volts
PT6653
¨ = +5.0 Volts
PT6654
¨ = +9.0 Volts
PT6655
¨ = +15.0 Volts
PT6656
¨ = +12.0 Volts
PT Series Suffix (PT1234X)
Case/Pin
Heat
Heat Spreader
Configuration
Spreader with Side Tabs
Vertical Through-Hole
PR
Horizontal Through-Hole DG
Horizontal Surface Mount EB
1
Remote Sense
2
Do Not Connect
3
STBY*- Standby
4Vin
5Vin
6Vin
7
GND
8
GND
9
GND
10
GND
11
Vout
12
Vout
13
Vout
14
Vout Adjust
Pin-Out Information
(ISRs). Designed for general purpose
industrial applications requiring as
much as 5A of output current, the
PT6650 is packaged in a 14-Pin SIP
(Single In-line Package) and is available
in a surface-mount configuration.
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
Note: Back surface
of product is
conducting metal
54
Pkg Style 400
Specifications
Characteristics
PT6650 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = 60°C, 200 LFM, pkg P
0.1*
—
5.0**
A
Ta = 25°C, natural convection
0.1*
—
5.0**
A
Input Voltage Range
Vin
0.1A
≤ Io ≤ 5.0A
Vo < +6V
+9V
—
+28V
V
Vo > +6V
Vo+3
—
+28V
V
Output Voltage Tolerance
Vo
Over Vin range
Ta = -40°C to +65°C
Vo-0.1
—
Vo+0.1
V
Output Voltage Adjust Range
Voadj
Pin 14 to Vo or ground
Vo = +3.3V
2.2
—
4.7
Vo = +2.5V
1.8
—
4.3
Vo = +5.0V
3.0
—
6.5
V
Vo = +9.0V
6.0
—
10.2
Vo = +12V
9.0
—
13.6
Vo = +15V
10.0
—
17.0
Line Regulation
Regline
+9V
≤Vin≤+28V, Io = 5.0A
—
±0.5
±1.0
%Vo
Load Regulation
Regload
Vin = +24V, 0.1≤ Io≤5.0A
—
±0.5
±1.0
%Vo
Vo Ripple/Noise
Vn
Vin = +24V, Io = 5.0A
Vo < +6V
—
50
—
mVpp
Vo > +6V
1.0
%Vo
Transient Response
ttr
Io step between 2.5A and 5.0A
—
100
—
Sec
with C2 = 330F
Vos
Vo over/undershoot
—
100
—
mV
Efficiency
η
Vin = +24V, Io = 0.5x Io max
Vo = +3.3V
—
81
—
%
Vo = +2.5V
—
76
—
%
Vo = +5.0V
—
85
—
%
Vin = +24V, Io = Io max
Vo = +3.3V
—
80
—
%
Vo = +2.5V
—
75
—
%
Vo = +5.0V
—
84
—
%
Switching Frequency
o
9V
≤ Vin ≤ 28V
500
550
600
kHz
Over Io range
Recommended Operating
Ta
Free Air Convection (40-60 LFM)
-40
—
+65
°C
Temperature Range
Over Vin and Io ranges with heat tab
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3
—
500
—
G’s
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2,
—
7.5
—
G’s
20-2000 Hz, soldered in a PC board
Weight
—
14
—
grams
*
ISR will operate down to no load with reduced specifications. ** See SOA curves.
Note: The PT6650 Series requires a 330F(output) and 100F(input) electrolytic capacitors for proper operation in all applications.
Revised 2/5/99