PT6620 Series
6 Amp 12V Input
Integrated Switching Regulator
SLTS036B
(Revised 9/20/2000)
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•
•
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Single Device: 6A Output
Input Voltage Range: 9V to 16V
Adjustable Output Voltage
83% Efficiency
Remote Sense Capability
Standby Function
signed for stand-alone operation in
applications requiring as much as 6A
of output current. The PT6620 se-
ries is packaged in Power Trends’
standard 14-Pin SIP (Single In-line
Package), which is available in either
a vertical or horizontal configura-
tion. Two electrolytic capacitors are
required for proper operation.
Over-Temperature Protection
The PT6620 series is a line of 12V
bus Integrated Switching Regulators
(ISRs). These regulators are de-
Please note that this product does
not include short circuit protection.
Pin-Out Information Ordering Information PT Series Suffix
(PT1234X)
Pin
Function
Remote Sense
Do Not Connect
STBY*- Standby
Vin
PT6621¨ = +3.3 Volts
PT6622¨ = +1.5 Volts
PT6623¨ = +2.5 Volts
PT6624¨ = +3.6 Volts
PT6625¨ = +5.0 Volts
PT6626¨ = +9.0 Volts
PT6627¨ = +1.8 Volts
Case/Pin
Configuration
Heat
Heat Spreader
Spreader with Side Tabs
1
Standard Application
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
R
G
B
2
REMOTE SENSE
1
3
VIN
VOUT
4
4,5,6
3
11,12,13
PT6620
5
Vin
7,8,9,10
+
+
6
Vin
LOAD
C1
C2
STBY
COM
Q1
7
G
ND
ND
ND
COM
8
G
Pkg Style 400/410
(1)
C1 = Required 330µF electrolytic
C2 = Required 330µF electrolytic
Q1= NFET-or Open Collector Gate
9
G
Note: Back surface
of product is
conducting metal
(1)
10
11
12
13
14
GND
Vout
Vout
Vout
Vout Adjust
Specifications
PT6620 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
(2)
(2)
Output Current
Io
Ta = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
0.1
0.1
—
—
6.0
6.0
A
Input Voltage Range
Vin
∆Vo
Voadj
0.1A ≤ Io ≤ 6.0A
Vo ≤ +5V
+9
—
—
+16
+16
V
V
+6V≤Vo≤+9V
Vo+3
Output Voltage Tolerance
Output Voltage Adjust Range
Vin = +12V, Io = 6.0A
Ta = 0 to 60°C
Vo-0.1
—
Vo+0.1
Pin 14 to Vo or ground
Vo = +3.3V
Vo = +1.5V
Vo = +2.5V
Vo = +3.6V
Vo = +5.0V
Vo = +9.0V
2.3
1.4
1.9
2.5
2.9
5.2
—
—
—
—
—
—
4.5
2.6
3.7
4.8
6.5
10.0
V
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
Vin(min) ≤Vin≤Vin(max), Io = 6.0A
Vin = +12V, 0.1≤ Io≤6.0A
Vin = +12V, Io = 6.0A
—
—
0.5
0.5
1.0
1.0
%Vo
%Vo
Vo < +6V
Vo > +6V
—
—
50
—
—
mVpp
%Vo
1.0
Transient Response
with C2 = 330µF
ttr
Io step between 3.0A and 6.0A
Vo over/undershoot
—
—
100
150
—
—
µSec
mV
Vos
Efficiency
η
Vin = +12V, Io = 3.0A
Vo= +3.3/3.6V
Vo = +1.5V
Vo = +2.5V
Vo = +5.0V
Vo = +9.0V
—
—
—
—
—
84
68
76
86
93
—
—
—
—
—
%
%
Vin = +12V, Io =6.0A
Vo= +3.3/3.6V
Vo = +1.5V
Vo = +2.5V
Vo = +5.0V
Vo = +9.0V
—
—
—
—
—
83
66
75
85
92
—
—
—
—
—
Switching Frequency
ƒo
Vin(min) ≤Vin≤Vin(max)
0.1A ≤ Io ≤ 6.0
PT6622
Except PT6622
500
550
550
650
600
750
kHz
kHz
Continued
For technical support and more information, see inside back cover or visit www.ti.com/powertrends