PT6600 Series
9 Amp 5V/3.3V Input Adjustable
Integrated Switching Regulator
SLTS035A
(Revised 6/30/2000)
•
•
•
•
•
•
•
Single Device 9A Output
Input Voltage Range: 3.1V to 6.0V
Adjustable Output Voltage
90% Efficiency
Remote Sense Capability
Standby Function
In-line Package) Integrated Switching
Regulators (ISRs), designed for stand-
alone operation in applications
requiring as much as 9A of output
current.
The PT6600 series will operate
off either a 3.3V or 5V input bus and
requires only two external capacitors
for proper operation. Please note that
this product does not include short
circuit protection.
Over-Temperature Protection
The PT6600 series is a high per-
formance family of 14-Pin SIP (Single
Pin-Out Information Ordering Information PT Series Suffix
(PT1234X)
PT6601
PT6602
PT6603
PT6604
PT6605
PT6606
!
!
!
!
!
!
= +3.3 Volts
= +1.5 Volts
= +2.5 Volts
= +3.6 Volts
= +1.2 Volts
= +1.8 Volts
Case/Pin
Configuration
Heat
Heat Spreader
Pin
1
2
3
4
5
6
7
8
9
Function
Remote Sense
Do not connect
STBY*-Standby
Vin
†
Spreader with Side Tabs
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
R
G
B
Standard Application
†
†
Vin
Vin
VoADJ
V
oSENSE
†3.3V Input Bus Capable
14
1
GND
G
G
VIN
VOUT
4,5,6
11,12,13
PT6600
ND
ND
+
+
3
7,8,9,10
CIN
COUT
LOAD
10
GND
Vout
Vout
Vout
STBY
COM
Q1
Pkg Style 400
11
12
13
14
COM
Note: Back surface
of product is
conducting metal.
Vout Adjust
C1 = Required 330µF electrolytic (1)
C2 = Required 330µF electrolytic (1)
Q1= NFET-or Open Collector Gate
Specifications
PT6600 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
(2)
(2)
(4)
(4)
Output Current
Io
Ta = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
0.1
—
—
9.0
7.0
A
0.1
Input Voltage Range
Vin
0.1A ≤ Io ≤ 8.0A
Vo= +2.5/3.3V
4.5
3.1
4.8
—
—
—
6.0
6.0
6.0
V
o ≤ 1.8V
V
V
Vo= +3.6V
Output Voltage Tolerance
∆Vo
Vin = +5V, Io = 8.0A
Ta = 0°C to 65°C
Vo-0.1
—
Vo+0.1
Output Voltage Adjust Range
Voadj
Pin 14 to Vo or ground
Vo= +3.3V
Vo= +1.5V
Vo= +2.5V
Vo= +3.6V
2.25
1.27
1.80
2.50
—
—
—
—
4.20
2.65
3.50
4.30
V
inmin=+3.1V or Vo+1.2V
V
(whichever is greater)
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
4.5V ≤ Vin ≤ 6.0V, Io = 8.0A
3.1V ≤ Vin ≤ 6.0V, Io = 8.0A
4.5V ≤ Vin ≤ 6.0V, Io = 8.0A
Vo= +3.3V
Vo= +1.5V
Vo= +2.5V
—
—
—
7
3
7
17
8
mV
13
Vin = +5V, 0.1 ≤ Io ≤ 8.0A
Vo= +3.3V
Vo= +1.5V
Vo= +2.5V
—
—
—
17
12
13
33
23
25
mV
Vin = 5V, Io = 8.0A
—
50
—
mVpp
Transient Response
with C2 = 330µF
ttr
Io step between 4.0A and 8.0A
Vo over/undershoot
—
—
100
150
—
—
µSec
mV
Vos
Efficiency
η
Vin = +5V, Io = 3.0A
Vo = +3.3/3.6V
Vo = +1.5V
—
—
—
90
76
85
—
—
—
%
Vo = +2.5V
Vin = +5V, Io = 8.0A
Vo = +3.3/3.6V
Vo = +1.5V
—
—
—
83
68
76
—
—
—
%
Vo = +2.5V
Switching Frequency
ƒo
3.1V ≤ Vin ≤ 6.0V
0.1A ≤ Io ≤ 8.0A
475
600
725
kHz
Absolute Maximum
Ta
θja
Over Vin range
–40 (3)
—
—
25
+85 (4)
—
°C
Operating Temperature Range
Thermal Resistance
Free Air Convection (40-60 LFM)
°C/W
Continued
For technical support and more information, see inside back cover or visit www.ti.com/powertrends