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
PT6651H
PT6652H
PT6653H
PT6654H
PT6655H
PT6656H
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 operate 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.
The PT6650 series is housed in a lowcost 14-pin SIP (Single In-line Package) and
is available in both vertical and horizontal
configurations, including surface-mount.
=
=
=
=
=
=
3.3
2.5
5
9
15
12
Volts
Volts
Volts
Volts
Volts
Volts
Note: Back surface
of product is
conducting metal
Pin-Out Information
PT Series Suffix (PT1234 x )
Case/Pin
Configuration
Vertical
Horizontal
SMD
Horizontal, 2-Pin Tab
SMD, 2-Pin Tab
Horizontal, 2-Pin Ext Tab
SMD, 2-Pin Ext Tab
Vertical, Side Tab
Horizontal, Side Tab
SMD, Side Tab
Order
Suffix
Package
Code *
P
D
E
M
L
Q
F
R
G
B
(EED)
(EEA)
(EEC)
(EEM)
(EEL)
(EEQ)
(EEF)
(EEE)
(EEG)
(EEK)
* Previously known as package styles 400/410.
(Reference the applicable package code drawing for the
dimensions and PC board layout)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Function
Remote Sense
Do Not Connect
STBY*
Vin
Vin
Vin
GND
GND
GND
GND
Vout
Vout
Vout
Vo Adjust *
* For further information, see
application notes.
Standard Application
VoAdjust
VoSense
14
VIN
4,5,6
PT6650
3
CIN
560 µF
(Required)
COM
1
11,12,13
VOUT
7–10
COUT
LOAD
330 µF
(Required)
COM
Cin = Required 560 µF electrolytic
Cout = Required 330 µF electrolytic
For technical support and further information, visit http://power.ti.com
PT6650 Series
5-A 12 /24-V Input Adjustable
Integrated Switching Regulator
Specifications
SLTS038B -FEBRUARY 1999 - REVISED MARCH 2004
(Unless otherwise stated, T a =25 °C, V in =24 V, C in =560 µF, C out =330 µF, and I o =Io max)
Characteristic
Symbol
Conditions
Output Current
Io
Over Vin range
Input Voltage Range
Vin
Io(min) ≤ Io ≤ Io(max)
Output Voltage Tolerance
∆Vo
Output Voltage Adjust Range
Vo adj
Over Vin range
Ta = –40 °C to 65 °C
Pin 14 to Vo or ground
Line Regulation
Load Regulation
Vo Ripple (pk-pk)
Regline
Regload
Vr
Transient Response
with C2 = 330µF
Efficiency
ttr
Vtr
η
Switching Frequency
On/Off Standby (Pin 3)
Input High Voltage
Input Low Voltage
Input Low Current
VIH
VIL
IIL
Standby Input Current
External Output Capacitance
External Input Capacitance
Operating Temperature Range
Solder Reflow Temperature
Storage Temperature
Reliability
Iin standby
Cout
Cin
Ta
Treflow
Ts
MTBF
Mechanical Shock
—
Mechanical Vibration
—
Weight
—
Flammability
ƒs
—
Min
Vo ≤12 V
Vo =15 V
Vo < 6 V
Vo > 6 V
Vo = 3.3 V
Vo = 2.5 V
Vo = 5 V
Vo = 9 V
Vo = 12 V
Vo = 15 V
9 V ≤ Vin ≤ 28 V
0.1 ≤ Io ≤5 A
20 MHz bandwidth
Vo < 6 V
Vo > 6 V
0.15 A/µs load step, 50% to 100% Iomax
Vo over/undershoot
Io =50 % Io max
Vo = 3.3 V
Vo = 2.5 V
Vo = 5 V
Vo = 3.3 V
Io = Io max
Vo = 2.5 V
Vo = 5 V
9 V ≤ Vin ≤ 28 V
Referenced to GND
pin 3 to GND
Over Vin range
Surface temperature of module pins or case
—
Per Bellcore TR-332
50% stress, Ta =40 °C, ground benign
Per Mil-Std-883D, method 2002.3,
1ms, half-sine, mounted to a fixture
Mil-Std-883D, Method 2007.2,
20-2000Hz, soldered in PCB
Case styles P, D, & E
Case styles R, G, & B
Case styles L & M
Case styles F & Q
Materials meet UL 94V-0
PT6650 SERIES
Typ
Max
Units
0.1 (1)
0.1 (1)
9
Vo + 3
—
—
—
—
5 (2)
4 (2)
28
28
Vo –0.1
—
Vo +0.1
2.2
1.8
3
6
9
10
—
—
—
—
—
—
—
—
—
—
—
—
500
—
—
—
—
—
—
±0.5
±0.5
50
1
100
100
81
76
85
80
75
84
550
4.7
4.3
6.5
10.2
13.6
17
±1
±1
—
—
—
—
—
—
—
—
—
—
600
1
–0.1
—
—
330
560 (4)
–40
—
–40
—
—
–0.25
15
—
—
—
—
—
Open (3)
0.3
–
30
3,000
—
85 (2)
215 (5)
125
mA
mA
µF
µF
°C
°C
°C
7.2
—
—
106 Hrs
—
500
—
G’s
—
7.5
—
G’s
—
—
—
—
12.5
16.5
15.5
22
—
—
—
—
grams
A
V
V
V
%Vo
%Vo
mVpp
%Vo
µSec
mV
%
%
kHz
V
Notes: (1) The ISR will operate at no load with reduced specifications.
(2) See Safe Operating Area curves or contact the factory for the appropriate derating.
(3) The STBY* control (pin 3) has an internal pull-up and if it is left open circuit the module will operate when input power is applied. The open-circuit
voltage is typcially 1.5 V. Consult the related application note for other interface considerations.
(4) The module requires a 560µF electrolytic capacitor at the input and 330µF at the output for proper operation in all applications. In addition, the input
capacitance, Cin, must be rated for a minimum of 1.2 Arms of ripple current. For transient or dynamic load applications additional capacitance may be
necessary. For more information consult the related application note on capacitor recommendations.
(5) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215°C. For
further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051).
For technical support and further information, visit http://power.ti.com
Typical Characteristics
PT6650 Series
5-A 12 /24-V Input Adjustable
Integrated Switching Regulator
SLTS038B -FEBRUARY 1999 - REVISED MARCH 2004
PT6650 Series @VIN= 24 V (See Note A)
Safe Operating Area @VIN= 24 V (See Note B)
PT6651P, 3.3 V
Efficiency vs Output Current
90
100
Efficiency (%)
PT6651
PT6652
PT6653
PT6654
PT6655
PT6656
80
70
60
50
Ambient Temperature (°C)
80
90
Airflow
70
200LFM
120LFM
60LFM
Nat conv
60
50
40
30
40
0
1
2
3
4
20
5
0
1
2
Output Current (A)
4
5
PT6652P, 2.5 V
Ripple vs Output Current
90
120
80
PT6655
PT6656
PT6654
PT6653
PT6651
PT6652
80
60
40
20
Ambient Temperature (°C)
100
Ripple (mVpp)
3
Output Current (A)
Airflow
70
200LFM
120LFM
60LFM
Nat conv
60
50
40
30
0
0
1
2
3
4
20
5
0
1
Output Current (A)
2
3
4
5
Output Current (A)
PT6653P, 5 V
Power Dissipation vs Output Current
90
5
Power Dissipation (W)
PT6656
PT6655
PT6654
PT6653
PT6651
PT6652
3
2
1
Ambient Temperature (°C)
80
4
Airflow
70
200LFM
120LFM
60LFM
Nat conv
60
50
40
30
0
0
1
2
3
4
20
5
0
1
Output Current (A)
2
3
4
5
Output Current (A)
PT6656, 12 V
90
Ambient Temperature (°C)
80
Airflow
70
200LFM
120LFM
60LFM
Nat conv
60
50
40
30
20
0
1
2
3
4
Output Current (A)
Note A: Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the regulator.
Note B: SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures
For technical support and further information, visit http://power.ti.com
5
Application Notes
PT6650 Series
Capacitor Recommendations for the
PT6650 Regulator Series
Input Capacitor:
The required input capacitor is determined by 560 µF
capacitance value, and a minimum ripple current rating of
1.2 Arms. The ripple current rating and less than 120 mΩ
equivalent series resistance (ESR) are the major considerations, along with operating temperature, when selecting
input capacitors.
Tantalum/Os-Con capacitors are not recommended due
to a minimum voltage rating of 2× (the max. DC voltage
+ AC ripple). This is standard practice to ensure reliability.
Output Capacitors:
The ESR specification of the output capacitor should be
a minimum of 50 mΩ *. Electrolytic capacitors have
marginal ripple performance at frequencies greater than
400 kHz but excellent low frequency transient response.
Above the ripple frequency ceramic capacitors are
necessary to improve the transient response and reduce
any high-frequency noise components apparent during
higher current excursions. Electrolytic capacitors with
appropriate ESR values are identified in Table 1-1. In lowtemperature applications (3000 mA
7.3L
×5.7W
×4.1H
N/R [1]
N/R [1]
1 [2]
1 [2]
TPSE337M010R0100 (Vo