鈥?/div>
Soft Start
The PT6670 is a series of high-output
Integrated Switching Regulators (ISRs)
designed to provide a voltage boost
function. Housed in a 14-Pin SIP (Single
In-line Package), the PT6670 series
incorporates regulators for either a +3.3V
or +5.0V input and provide output voltages
from +5V to +12V. Applications include
power for auxilliary circuits requiring
up to 20W.
Pin-Out Information
Pin
1
2
3
4
5
6
7
Ordering Information
Pin
8
9
10
11
12
13
14
Function
Remote Sense
Do not connect
Do not connect
Function
GND
GND
GND
V
out
V
out
V
out
V
out
Adjust
+3.3V Input
PT6671
PT6672
PT6673
+5V Input
鈥?/div>
PT6675
PT6674
Vout
+5.0 Volts
+9.0 Volts
+12.0 Volts
Standard Application
V
O
Adjust
14
1
REMOTE SENSE
V
in
V
in
V
in
GND
V
IN
4,5,6
PT6670
7,8,9,10
11,12,13
V
OUT
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Heat
Spreader
C
1
GND
+
C
2
+
LOAD
GND
Pkg Style 400
PT6670
Note:
Back surface is
conducting metal.
C
1
= Required 560碌F electrolytic
C
2
= Required 560碌F electrolytic
(1)
(1)
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
Preliminary Specifications
Characteristics
(T
a
= 25擄C unless noted)
Output Current
PT6670 SERIES
Symbols
I
o
Conditions
T
a
= 60擄C, 200 LFM, pkg P
T
a
= 25擄C, natural convection
PT6671
PT6672
PT6673
PT6674
PT6675
PT6671/2/3
PT6674/5
Min
0.1
0.1
0.1
0.1
0.1
0.1
3.1
4.5
鈥?/div>
鈥?/div>
PT6671
PT6672/5
PT6673/4
3.8
8.2
9.6
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
PT6671
PT6672
PT6673
PT6675
PT6674
PT6671
PT6672
PT6673
PT6675
PT6674
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Typ
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
3.3
5.0
鈥?/div>
1.5
鈥?/div>
鈥?/div>
鈥?/div>
鹵0.25
鹵0.25
3
500
5
85
84
83
88
87
82
80
82
87
86
Max
TBD
4.0
1.67
1.25
2.0
3.0
3.6
5.5
TBD
鈥?/div>
5.5
9.2
12.8
鹵0.5
鹵0.5
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Units
A
Input Voltage Range
Inrush Current
Output Voltage T
olerance
Output Voltage Adjust Range
V
in
I
ir
鈭哣
o
V
oadj
Reg
line
Reg
load
V
n
t
tr
V
os
畏
Over V
o
and I
o
range
On start-up
V
in
=V
in(TYP)
, I
o
= I
omax
T
a
= 0擄C to 65擄C
Pin 14 to V
o
or ground
Over V
in
range, I
o
=
I
omax
V
in
=V
in(TYP)
, 0.1
鈮?/div>
I
o
鈮?/div>
I
omax
V
in
=V
in(TYP)
, I
o
= I
omax
I
o
step between 錕?frac12;I
omax
and I
omax
V
o
over/undershoot
V
in
= V
in(TYP)
, I
o
= 錕?frac12;I
omax
V
A
%V
o
V
%V
o
%V
o
%V
o
碌Sec
%V
o
%
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
with C
1
= C
2
= 560碌F
Efficiency
V
in
=V
in(TYP)
, I
o
= I
omax
%
(Continued)
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
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