PT6600 Datasheet, PDF (1/5 Pages) Texas Instruments – 9 AMP ADJUSTABLE INTEGRATED SWITCHING REGULATOR

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PT6600
Series
9 AMP ADJUSTABLE
INTEGRATED SWITCHING REGULATOR
Revised 7/15/98
Application Notes
Mechanical Outline
Product Selector Guide
• Single Device 9A Output
• Input Voltage Range: 3.1V to 6.0V
• Adjustable Output Voltage
• 90% Efficiency
• Remote Sense Capability
• Standby Function
• Over-Temperature Protection
The PT6600 series is a new addi-
tion to the Power Trends’ high
performance family of 14-Pin SIP
(Single In-line Package) Integrated
Switching Regulators (ISRs), designed
for stand alone operation in applications
requiring as much as 9A of output cur-
rent (10A with a side heat tab).
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
Pin-Out Information Ordering Information PT Series Suffix (PT1234X)
Standard Application
V_OADJ
V_IN
REMOTE SENSE
14
1
4,5,6 _PT6600
3
11,12,13
V_OUT
Pin Function
PT6601¨ = +3.3 Volts _Case/Pin
Heat
Heat Spreader
1
Remote Sense
† PT6602¨ = +1.5 Volts Configuration
Spreader with Side Tabs
2
Do not connect
PT6603¨ = +2.5 Volts Vertical Through-Hole P
R
3 STBY*-Standby PT6604¨ = +3.6 Volts HorizontalThrough-Hole D
G
4
V_in
† PT6605¨ = +1.2 Volts Horizontal Surface Mount E
B
5
V_in
6
V_in
7 GND
† PT6606¨ = +1.8 Volts
†3.3V Input Bus Capable
8 GND
9 GND
+
C₁
STBY
COM
7,8,9,10
Q₁
+
C₂
10 GND
LOAD
11
Vout
COM
12
Vout
13
Vout
C₁ = Required 330µF electrolytic
14
Vout Adjust
C₂ = Required 330µF electrolytic
Q₁= NFET-or Open Collector Gate
Pkg Style 400
Note: Back surface
of product is
conducting metal.
Specifications
Characteristics
(T_a = 25°C unless noted)
Output Current
Input Voltage Range
Output Voltage Tolerance
Output Voltage Adjust Range
Symbols
I_o
V_in
∆Vo
Voadj
Line Regulation
Load Regulation
Vo Ripple/Noise
Reg_line
Regload
Vn
Conditions
T_a = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
0.1A ≤ I_o ≤ 8.0A
V_o= +2.5/3.3V
Vo= +1.5V
Vo= +3.6V
Vin = +5V, Io = 8.0A
Ta = 0°C to 65°C
Pin 14 to Vo or ground
Vinmin=+3.1V or Vo+1.2V
(whichever is greater)
Vo= +3.3V
Vo= +1.5V
V_o= +2.5V
Vo= +3.6V
4.5V ≤ V_in ≤ 6.0V, I_o = 8.0A V_o= +3.3V
3.1V ≤ Vin ≤ 6.0V, Io = 8.0A Vo= +1.5V
4.5V ≤ Vin ≤ 6.0V, Io = 8.0A Vo= +2.5V
Vin = +5V, 0.1 ≤ Io ≤ 8.0A
Vo= +3.3V
Vo= +1.5V
V_o= +2.5V
Vin = 5V, Io = 8.0A
Transient Response
with C₂ = 330µF
Efficiency
ttr
Io step between 4.0A and 8.0A
V_os
V_o over/undershoot
η
Vin = +5V, Io = 3.0A
Vo = +3.3/3.6V
V_o = +1.5V
Vo = +2.5V
Vin = +5V, Io = 8.0A
Vo = +3.3/3.6V
V_o = +1.5V
Vo = +2.5V
* ISR will operate down to no load with reduced specifications.
** See SOA curves
Note: The PT6600 Series requires two 330µF electrolytic capacitors (input and output) for proper operation in all applications.
See PT6000/7000 Series Capacitor application note.
PT6600 SERIES
Min
Typ
0.1*
—
0.1*
—
4.5
—
3.1
—
4.8
—
Vo-0.1 —
2.25
—
1.27
—
1.80
—
2.50
—
—
±7
—
±3
—
±7
—
±17
—
±12
—
±13
—
50
—
100
—
150
—
90
—
76
—
85
—
83
—
68
—
76
Max
9.0**
7.0**
6.0
6.0
6.0
Vo+0.1
4.20
2.65
3.50
4.30
±17
±8
±13
±33
±23
±25
—
—
—
—
—
—
—
—
—
Units
A
A
V
V
V
mV
mV
mVpp
µSec
mV
%
%
%
%
%
%
6
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