TI PT6671

For assistance or to order, call
(800) 531-5782
PT6670
ADVANCED INFORMATION - AVAILABLE 3Q98
Series
3.3V INPUT 20W BOOST
INTEGRATED SWITCHING REGULATOR
•
•
•
•
•
Input Voltage Range: 3.0 to 3.6V
Adjustable Output Voltage
85% Efficiency
Remote Sense Capability
Soft Start
Pin-Out Information
Pin
Standard Application
VOAdjust
REMOTE SENSE
14
VIN
4,5,6
C1
1
PT6670
+
VOUT
11,12,13
7,8,9,10
C2
+
GND
LOAD
GND
C1 = Required 560µF electrolytic
C2 = Required 560µF electrolytic
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Function
Remote Sense
Do not connect
Do not connect
The PT6670 series is a new addition
to the Power Trends high performance
family of 14-Pin SIP (Single In-line
Package) Integrated Switching Regulators (ISRs), designed for 3.3V bus
applications needing 5 to 12 volts for
auxilliary circuits at up to 20W of
output power.
Ordering Information
PT6671¨ = +5.0 Volts
PT6672¨ = +9.0 Volts
PT6673¨ = +12.0 Volts
Vin
Vin
Vin
GND
GND
GND
GND
Vout
Vout
Vout
Vout Adjust
Revised 11/18/98
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Heat
Spreader
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
Pkg Style 400
Note: Back surface
of product is
conducting metal.
PT6670
Preliminary Specifications
PT6670 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
0.1
0.1
0.1
0.1
—
—
—
—
TBD
4.0
2.2
1.7
A
A
A
A
Input Voltage Range
Vin
Over Vo and Io range
3.0
—
3.6
V
Inrush Current
Iir
On start-up
—
—
TBD
A
Output Voltage Tolerance
∆Vo
Vin = +3.3V, Io = I omax
Ta = 0°C to 65°C
—
1.5
—
%Vo
Output Voltage Adjust Range
Voadj
Pin 14 to Vo or ground
—
—
—
TBD
TBD
TBD
—
—
—
V
Line Regulation
Regline
Over Vin range, I o = Iomax
—
±0.25
±0.5
%Vo
Load Regulation
Regload
Vin = +3.3V, 0.1 ≤ Io ≤ Iomax
—
±0.25
±0.5
%Vo
Vo Ripple/Noise
Vn
Vin = +3.3V, Io = Iomax
—
3
—
%Vo
Transient Response
with C1= C2= 560µF
t tr
Vos
Io step between ½Iomax and Iomax
Vo over/undershoot
—
—
500
5
—
—
µSec
%Vo
Efficiency
h
Vin = +3.3V, Io = ½Iomax
Vo = +5V
Vo = +9V
Vo = +12V
—
—
—
87
86
87
—
—
—
%
%
%
Vin = +3.3V, Io = Iomax
Vo = +5V
Vo = +9V
Vo = +12V
—
—
—
84
80
82
—
—
—
%
%
%
Vo= +5V
Vo= +9V
Vo= +12V
Vo= +5V
Vo= +9V
Vo= +12V
Note: The PT6670 Series requires two 560µF electrolytic capacitors (input and output) for proper operation in all applications. Please note that this product does not include short circuit protection.
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call
PT6670
(800) 531-5782
Series
Preliminary Specifications (continued)
PT6670 SERIES
Symbols
Conditions
Min
Typ
Max
Units
Switching Frequency
ƒo
3.0V ≤ V in ≤ 3.6V
0.1A ≤ I o ≤ Iomax
—
300
—
kHz
Absolute Maximum
Operating Temperature Range
Ta
-40
—
+85
°C
Recommended Operating
Temperature Range
Ta
-40
—
+65
°C
Thermal Resistance
θja
Free Air Convection (40-60 LFM)
—
TBD
—
°C/W
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3
—
500
—
G’s
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
7.5
—
G’s
Weight
—
—
—
14
—
grams
Free Air Convection (40-60 LFM)
Over Vin and Io ranges with heat tab
Note: The PT6670 Series requires two 560µF electrolytic capacitors (input and output) for proper operation in all applications. Please note that this product does not include short circuit protection.
C H A R A C T E R I S T I C
D A T A
PT6670 Series (@ Vin=+3.3V)
(See Note 1)
Efficiency vs Output Current
100
Efficiency - %
90
PT6671
PT6672
PT6673
80
70
60
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Iout-(Amps)
Ripple vs Output Current
200
180
160
Ripple-(mV)
140
120
PT6671
PT6672
PT6673
100
80
60
40
20
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Iout-(Amps)
Power Dissipation vs Output Current
6
PD-(Watts)
5
4
PT6671
PT6672
PT6673
3
2
1
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Iout-(Amps)
Note 1: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
DATA SHEETS
Characteristics
(Ta = 25°C unless noted)
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