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Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902
http://www.ti.com/powertrends
For assistance or to order, call
(800) 531-5782
PT6610
S e r i e s
P T 6 6 1 0
SLTS124
(Revised 1/21/2000)
Standard Application
C
1
= Required 330μF electrolytic
(1)
C
2
= Required 330μF electrolytic
(1)
Q
1
= NFET-or Open Collector Gate
PT6610
11,12,13
14
7,8,9,10
4,5,6
3
1
C
OUT
+
C
IN
+
LOAD
V
o
ADJ
V
IN
STBY
COM
V
OUT
COM
V
o
SENSE
Q1
Ordering Information
PT6611
!
= +3.3 Volts
PT6613
!
= +2.5 Volts
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
E
Heat
Spreader
P
D
Heat Spreader
with Side Tabs
R
G
B
Note: Back surface
of product is
conducting metal.
Pin-Out Information
Pin
Function
1
Remote Sense
2
Do not connect
3
STBY*-Standby
4
V
in
5
V
in
6
V
in
7
GND
8
GND
9
GND
10
GND
11
V
out
12
V
out
13
V
out
14
V
out
Adjust
9 AMP 5V STEP-DOWN INTEGRATED
SWITCHING REGULATOR
Single Device 9A Output
Input Voltage Range: 4.5V to 6.0V
Adjustable Output Voltage
90% Efficiency
Remote Sense Capability
Standby Function
Over-Temperature Protection
The PT6610 series is a high per-
formance +5V family of 14-Pin SIP
(Single In-line Package) Integrated
Switching Regulators (ISRs), designed
for stand alone operation in applica-
tions requiring as much as 9A of
output current.
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
Pkg Style 400
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
PT6610 SERIES
Typ
—
—
—
Symbols
I
o
Conditions
T
a
= 60°C, 200 LFM, pkg P
T
a
= 25°C, natural convection
0.1A
≤
I
o
≤
9.0A
Min
0.1
(2)
0.1
(2)
4.5
Max
9.0
7.0
6.0
Units
A
A
Input Voltage Range
V
in
V
o
= +2.5/3.3V
Output Voltage Tolerance
V
o
V
in
= +5V, I
= 9.0A
T
a
= 0°C to 65°C
Pin 14 to V
or ground
V
min=+4.5V or V
o
+1.2V
(whichever is greater)
4.5V
≤
V
in
≤
6.0V, I
o
= 9.0A
4.5V
≤
V
in
≤
6.0V, I
o
= 9.0A
V
in
= +5V, 0.1
≤
I
o
≤
9.0A
V
o
-0.1
—
V
o
+0.1
V
Output Voltage Adjust Range
V
oadj
V
o
= +3.3V
V
o
= +2.5V
2.25
1.80
—
—
4.20
3.50
V
Line Regulation
Reg
line
V
o
= +3.3V
V
o
= +2.5V
V
o
= +3.3V
V
o
= +2.5V
—
—
—
—
—
±7
±7
±17
±13
50
±17
±13
±33
±25
—
mV
Load Regulation
Reg
load
mV
V
o
Ripple/Noise
V
n
V
in
= 5V, I
o
= 9.0A
mVpp
Transient Response
with C
2
= 330μF
Efficiency
t
tr
V
os
η
I
o
step between 4.0A and 9.0A
V
o
over/undershoot
V
in
= +5V, I
o
= 3.0A
—
—
—
—
—
—
100
150
90
88
86
83
—
—
—
—
—
—
μSec
mV
V
o
= +3.3V
V
o
= +2.5V
V
o
= +3.3V
V
o
= +2.5V
%
V
in
= +5V, I
o
= 9.0A
%
Switching Frequency
o
4.5V
≤
V
in
≤
6.0V
0.1A
≤
I
o
≤
9.0A
Free Air Convection (40-60 LFM)
Over V
in
and
I
o
ranges with heat tab
Free Air Convection (40-60 LFM)
—
475
600
725
kHz
Absolute Maximum
Operating Temperature Range
Thermal Resistance
Storage Temperature
T
a
–40
(3)
—
+85
(4)
°C
θ
ja
T
s
—
-40
25
—
—
+125
°C/W
°C
Continued