PT6670_14 Datasheet, PDF (1/5 Pages) Texas Instruments – Adjustable Output Voltage

PT6670 Series
5V/3.3V Input 20W Boost
Integrated Switching Regulator
SLTS039A
(Revised 6/30/2000)
• Input Voltage Range:
3.1 to 3.6V
4.5 to 5.5V
• Adjustable Output Voltage
• 85% Efficiency
• Remote Sense Capability
• Soft Start
The PT6670 is a series of high-output
Integrated Switching Regulators (ISRs)
designed to provide a voltage boost
function. Housed in a 14-Pin SIP (Single
In-line Package), the PT6670 series
incorporates regulators for either a +3.3V
or +5.0V input and provide output voltages
from +5V to +12V. Applications include
power for auxilliary circuits requiring
up to 20W.
Standard Application
V_OAdjust
V_IN
REMOTE SENSE
14
1
4,5,6
PT6670
11,12,13
V_OUT
Pin-Out Information
Pin Function
1
Remote Sense
2
Do not connect
3
Do not connect
4
Vin
5
V_in
6
Vin
7 GND
Pin Function
8 GND
9 GND
10 GND
11
Vout
12
Vout
13
Vout
14
Vout Adjust
+
C₁
GND
7,8,9,10
+
C₂
GND
LOAD
C₁ = Required 560µF electrolytic (1)
C₂ = Required 560µF electrolytic (1)
Pkg Style 400
PT6670
Note:
Back surface is
conducting metal.
Ordering Information
+3.3V Input +5V Input
PT6671…
PT6672…
PT6673…
—
PT6675…
PT6674…
Vout
+5.0 Volts
+9.0 Volts
+12.0 Volts
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
Heat
Spreader
P
D
E
Preliminary Specifications
Characteristics
(T_a = 25°C unless noted)
Output Current
Symbols
Io
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
∆Vo
Voadj
Regline
Regload
Vn
t_tr
Vos
η
Conditions
Min
Ta = 60°C, 200 LFM, pkg P
T_a = 25°C, natural convection
0.1
PT6671 0.1
PT6672 0.1
PT6673 0.1
PT6674 0.1
PT6675 0.1
Over Vo and Io range
PT6671/2/3 3.1
PT6674/5 4.5
On start-up
—
Vin =Vin(TYP), Io = Iomax
Ta = 0°C to 65°C
Pin 14 to Vo or ground
Over Vin range, Io = Iomax
Vin =Vin(TYP), 0.1 ≤ Io ≤ Iomax
Vin =Vin(TYP), Io = Iomax
I_o step between ½I_omax and I_omax
Vo over/undershoot
V_in = V_in(TYP), I_o = ½I_omax
—
PT6671 3.8
PT6672/5 8.2
PT6673/4 9.6
—
—
—
—
—
PT6671 —
PT6672 —
PT6673 —
PT6675 —
PT6674 —
Vin =Vin(TYP), Io = Iomax
PT6671 —
PT6672 —
PT6673 —
PT6675 —
PT6674 —
PT6670 SERIES
Typ
Max
—
TBD
—
4.0
—
1.67
—
1.25
—
2.0
—
3.0
3.3
3.6
5.0
5.5
—
TBD
Units
A
V
A
1.5
—
—
—
±0.25
±0.25
3
500
5
85
84
83
88
87
82
80
82
87
86
—
%Vo
5.5
9.2
V
12.8
±0.5
%Vo
±0.5
%Vo
—
%Vo
—
µSec
—
%Vo
—
—
—
%
—
—
—
—
—
%
—
—
(Continued)
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