PT6620 Datasheet, PDF (1/5 Pages) Texas Instruments – 6 AMP 12V INPUT INTEGRATED SWITCHING REGULATOR

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PT6620 Series
6 AMP 12V INPUT
INTEGRATED SWITCHING REGULATOR
Revised 2/5/99
Application Notes
Mechanical Outline
Product Selector Guide
• Single Device: 6A Output
• Input Voltage Range: 9V to 14V
• Adjustable Output Voltage
• 83% Efficiency
• Remote Sense Capability
• Standby Function
• Over-Temperature Protection
The PT6620 series is a new addition
to Power Trends’ line of 12V bus Inte-
grated Switching Regulators (ISRs).
Designed for stand-alone operation in
applications requiring as much as 6A of
output current, the PT6620 is packaged
in a 14-Pin SIP (Single In-line Package)
and is available in a surface-mount con-
figuration.
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
Standard Application
V_IN
+
C₁
STBY
COM
4,5,6
3
Q₁
REMOTE SENSE
1
PT6620
11,12,13
V_OUT
7,8,9,10
+
C₂
COM
LOAD
C₁ = Required 330µF electrolytic
C₂ = Required 330µF electrolytic
Q₁= NFET-or Open Collector Gate
Specifications
Pin-Out Information
Pin Function
1 Remote Sense
2 Do Not Connect
3 STBY*- Standby
4 V_in
5 Vin
6 Vin
7 GND
8 GND
9 GND
10 GND
11 Vout
12 V_out
13 Vout
14 Vout Adjust
Ordering Information
PT6621¨ = +3.3 Volts
PT6622¨ = +1.5 Volts
PT6623¨ = +2.5 Volts
PT6624¨ = +3.6 Volts
PT6625¨ = +5.0 Volts
PT6626¨ = +9.0 Volts
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Heat Heat Spreader
Spreader with Side Tabs
Vertical Through-Hole P
R
Horizontal Through-Hole D
G
Horizontal Surface Mount E
B
Pkg Style 400
Note: Back surface
of product is
conducting metal
Characteristics
(T_a = 25°C unless noted)
Symbols
Conditions
PT6620 SERIES
Min
Typ
Output Current
Io
Input Voltage Range
Vin
Output Voltage Tolerance
∆Vo
Ta = 0 to 60°C
Ta = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
0.1A ≤ Io ≤ 6.0A
Vo ≤ +5V
+6V≤Vo≤+9V
Vin = +12V, Io = 6.0A
0.1*
—
0.1*
—
+9
—
Vo+3
—
Vo-0.1 —
Output Voltage Adjust Range
Voadj
Line Regulation
Load Regulation
Regline
Regload
Pin 14 to Vo or ground
Vo = +3.3V 2.3
—
Vo = +1.5V 1.4
—
V_o = +2.5V 1.9
—
Vo = +3.6V 2.5
—
Vo = +5.0V 2.9
—
V_o = +9.0V 5.2
—
+9V≤Vin≤+14V, Io = 6.0A
—
±0.5
Vin = +12V, 0.1≤ Io≤6.0A
—
±0.5
V_o Ripple/Noise
V_n
V_in = +12V, I_o = 6.0A
V_o < +6V
—
50
Vo > +6V
—
1.0
Transient Response
with C2 = 330µF
Efficiency
t_tr
I_o step between 3.0A and 6.0A
Vos
Vo over/undershoot
—
100
—
150
η
V_in = +12V, I_o = 3.0A
V_o= +3.3/3.6V —
84
Vo = +1.5V —
68
Vo = +2.5V —
76
V_o = +5.0V —
86
Vo = +9.0V —
93
V_in = +12V, I_o =6.0A
V_o= +3.3/3.6V —
83
Vo = +1.5V —
66
Vo = +2.5V —
75
V_o = +5.0V —
85
Vo = +9.0V —
92
* ISR will operate down to no load with reduced specifications.
** See SOA curves - Output power is limited to 30W maximum.
Note: The PT6620 Series requires a 330µF(output) and 330µF(input) electrolytic capacitors for proper operation in all applications.
Max
6.0**
6.5**
+14
+14
Vo+0.1
4.5
2.7
3.7
4.8
6.5
10.0
±1.0
±1.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Units
A
A
V
V
V
V
%Vo
%Vo
mVpp
%Vo
µSec
mV
%
%
%
%
%
%
%
%
%
%
48
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com