Standard Application
C
1
= Required 560µF electrolytic
C
2
= Required 560µF electrolytic
PT6670
4,5,6
7,8,9,10
11,12,13
14
V
IN
GND
GND
V
OUT
C
2
+
C
1
+
1
V
O
Adjust
REMOTE SENSE
LOAD
Ordering Information
PT6671
¨ = +5.0 Volts
PT6672
¨ = +9.0 Volts
PT6673
¨ = +12.0 Volts
PT Series Suffix
(PT1234
X
)
Case/Pin
Heat
Configuration
Spreader
Vertical Through-Hole
P
Horizontal Through-Hole
D
Horizontal Surface Mount
E
Note: Back surface
of product is
conducting metal.
Pin-Out Information
Pin
Function
1
Remote Sense
2
Do not connect
3
Do not connect
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
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
The PT6670 series is a new addition
to the Power Trends high performance
family of 14-Pin SIP (Single In-line
Package) Integrated Switching Regula-
tors (ISRs), designed for 3.3V bus
applications needing 5 to 12 volts for
auxilliary circuits at up to 20W of
output power.
For assistance or to order, call
(800) 531-5782
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902 http://www.powertrends.com
P T 6 6 7 0
S e r i e s
Pkg Style 400
Preliminary Specifications
Characteristics
PT6670 SERIES
(T
a
= 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
I
o
T
a
= 60°C, 200 LFM, pkg P
0.1
—
TBD
A
T
a
= 25°C, natural convection V
o
= +5V
0.1
—
4.0
A
V
o
= +9V
0.1
—
2.2
A
V
o
= +12V
0.1
—
1.7
A
Input Voltage Range
V
in
Over V
o
and
I
o
range
3.0
—
3.6
V
Inrush Current
I
ir
On start-up
—
—
TBD
A
Output Voltage Tolerance
∆
V
o
V
in
= +3.3V, I
o
= I
omax
—
1.5
—
%V
o
T
a
= 0°C to 65°C
Output Voltage Adjust Range
V
oadj
Pin 14 to V
o
or ground
V
o
= +5V
—
TBD
—
V
o
= +9V
—
TBD
—
V
V
o
= +12V
—
TBD
—
Line Regulation
Reg
line
Over V
in
range, I
o
=
I
omax
—
±0.25
±0.5
%V
o
Load Regulation
Reg
load
V
in
= +3.3V, 0.1
≤
I
o
≤
I
omax
—
±0.25
±0.5
%V
o
V
o
Ripple/Noise
V
n
V
in
= +3.3V, I
o
= I
omax
—
3
—
%V
o
Transient Response
t
tr
I
o
step between ½I
omax
and I
omax
—
500
—
µSec
with C
1
= C
2
= 560µF
V
os
V
o
over/undershoot
—
5
—
%V
o
Efficiency
h
V
in
= +3.3V, I
o
= ½I
omax
V
o
= +5V
—
87
—
%
V
o
= +9V
—
86
—
%
V
o
= +12V
—
87
—
%
V
in
= +3.3V, I
o
= I
omax
V
o
= +5V
—
84
—
%
V
o
= +9V
—
80
—
%
V
o
= +12V
—
82
—
%
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.
Revised 11/18/98
PT6670
ADVANCED INFORMATION - AVAILABLE 3Q98
C H A R A C T E R I S T I C D A T A
For assistance or to order, call
(800) 531-5782
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902 http://www.powertrends.com
DA
T
A
SHEETS
Note 1:
Note 1:
Note 1:
Note 1:
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.
PT6670 Series (@ V
in
=+3.3V)
(See Note 1)
Efficiency vs Output Current
Ripple vs Output Current
Power Dissipation vs Output Current
Efficiency - %
Ripple-(mV)
PD-(W
atts)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
P T 6 6 7 0
S e r i e s
Preliminary Specifications (continued)
Characteristics
PT6670 SERIES
(T
a
= 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Switching Frequency
ƒ
o
3.0V
≤
V
in
≤
3.6V
—
300
—
kHz
0.1A
≤
I
o
≤
I
omax
Absolute Maximum
T
a
-40
—
+85
°C
Operating Temperature Range
Recommended Operating
T
a
Free Air Convection (40-60 LFM)
-40
—
+65
°C
Temperature Range
Over V
in
and
I
o
ranges with heat tab
Thermal Resistance
θ
ja
Free Air Convection (40-60 LFM)
—
TBD
—
°C/W
Storage Temperature
T
s
—
-40
—
+125
°C
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3
—
500
—
G’s
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2,
—
7.5
—
G’s
20-2000 Hz, soldered in a PC board
Weight
—
—
—
14
—
grams
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.
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
PT6671
PT6672
PT6673
0
20
40
60
80
100
120
140
160
180
200
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
PT6671
PT6672
PT6673
0
1
2
3
4
5
6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
PT6671
PT6672
PT6673
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright
©
1999, Texas Instruments Incorporated