PT6670 Datasheet, PDF (1/3 Pages) Texas Instruments – 3.3V INPUT 20W BOOST INTEGRATED SWITCHING REGULATOR

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PT6670 Series
ADVANCED INFORMATION - AVAILABLE 3Q98
3.3V INPUT 20W BOOST
INTEGRATED SWITCHING REGULATOR
Revised 11/18/98
• 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.
Pin-Out Information Ordering Information PT Series Suffix (PT1234X)
Standard Application
V_OAdjust
REMOTE SENSE
Pin Function
1
Remote Sense
2
Do not connect
3
Do not connect
4
V_in
5
V_in
6
V_in
PT6671¨ = +5.0 Volts
PT6672¨ = +9.0 Volts
PT6673¨ = +12.0 Volts
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
Heat
Spreader
P
D
E
14
1
V_IN
4,5,6
PT6670
11,12,13
V_OUT
7 GND
8 GND
9 GND
+
C₁
7,8,9,10
+
C₂
10 GND
LOAD
11
Vout
GND
GND
12
Vout
13
Vout
C₁ = Required 560µF electrolytic
14
Vout Adjust
C₂ = Required 560µF electrolytic
Pkg Style 400
PT6670
Note: Back surface
of product is
conducting metal.
Preliminary Specifications
Characteristics
(T_a = 25°C unless noted)
Output Current
Symbols
I_o
Input Voltage Range
Inrush Current
Output Voltage Tolerance
Output Voltage Adjust Range
Line Regulation
Load Regulation
Vo Ripple/Noise
Transient Response
with C1= C2= 560µF
Efficiency
Vin
Iir
∆V_o
V_oadj
Regline
Reg_load
Vn
ttr
Vos
h
Conditions
T_a = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
Over Vo and Io range
On start-up
Vo= +5V
Vo= +9V
V_o= +12V
V_in = +3.3V, I_o = I_omax
Ta = 0°C to 65°C
Pin 14 to V_o or ground
V_o= +5V
Vo= +9V
Vo= +12V
Over Vin range, Io = Iomax
V_in = +3.3V, 0.1 ≤ I_o ≤ I_omax
Vin = +3.3V, Io = Iomax
Io step between ½Iomax and Iomax
Vo over/undershoot
Vin = +3.3V, Io = ½Iomax
Vo = +5V
Vo = +9V
V_o = +12V
Vin = +3.3V, Io = Iomax
Vo = +5V
V_o = +9V
Vo = +12V
PT6670 SERIES
Min
Typ
0.1
—
0.1
—
0.1
—
0.1
—
3.0
—
—
—
—
1.5
—
TBD
—
TBD
—
TBD
—
±0.25
—
±0.25
—
3
—
500
—
5
—
87
—
86
—
87
—
84
—
80
—
82
Max
TBD
4.0
2.2
1.7
3.6
TBD
—
—
—
—
±0.5
±0.5
—
—
—
—
—
—
—
—
—
Units
A
A
A
A
V
A
%Vo
V
%Vo
%V_o
%Vo
µSec
%Vo
%
%
%
%
%
%
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 [phone] Fax: [phone] http://www.powertrends.com