参数资料
型号: PT6424
厂商: Texas Instruments, Inc.
英文描述: 1.5Vout 3A 5V-Input Adjustable Step-Down ISR
中文描述: 1.5V 3A 输出 5V 输入的可调节正步降 ISR
文件页数: 1/5页
文件大小: 234K
代理商: PT6424
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
26
Application Notes
Mechanical Outline
Product Selector Guide
Revised 5/15/98
Standard Application
C
1
= Required 100μF electrolytic
C
2
= Required 100μF electrolytic
Ordering Information
PT6424
¨
= +1.5 Volts
PT6425
¨
= +3.3 Volts
PT6426
¨
= +1.8 Volts
PT6427
¨
= +2.1 Volts
PT6428
¨
= +1.2 Volts
PT6429
¨
= +2.5 Volts
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
Adjustable Output Voltage
85% Efficiency
Small SIP Footprint
Input Voltage Range: 4.5V to 5.5V
Remote Sense Capability
The PT6420 is a new addition to
the Power Trends high performance
+5V to +3.3V, 3Amp family of 14-Pin
SIP (Single In-line Package) Integrated
Switching Regulators (ISRs). Only two
external capacitors are required for
proper operation.
Please note that this product does
not include short circuit protection.
3 AMP ADJUSTABLE INTEGRATED
SWITCHING REGULATOR
P T 6 4 2 0
S e r i e s
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
PT6420
POWER TRENDS
Note: Back surface
of product is
conducting metal.
PT6420
C2
100μF
+
COM
V
OUT
4,5,6
7,8,9,10
11,12,13
14
C1
100μF
+
V
IN
COM
R1
(V
O
UP)
R2
(V
O
DOWN)
Remote
Sense
1
Pkg Style 310
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
Current Limit
Input Voltage Range
Output Voltage Tolerance
PT6420 SERIES
Min
0
4.5
Symbols
I
o
I
cl
V
in
V
o
Conditions
4.5V
V
in
5.5V
V
in
= +5V
0.1A
I
o
3.0A
V
= +5V, I
= 3.0A
0°C
T
a
+70°C
4.5V
V
in
5.5V, I
o
= 3.0A
V
in
= +5V, 0.3
I
o
3.0A
V
in
= 5V, I
o
= 3.0A
I
o
step between 1.5A and 3.0A
V
o
over/undershoot
V
in
= +5V, I
o
= 1.5A
Typ
3.6
Max
3.0
5.0
5.5
Units
A
A
V
V
o
-0.05
3.3
V
o
+0.05
V
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
with C
2
= 100μF
Efficiency
Reg
line
Reg
load
V
n
t
tr
V
os
η
±10
±10*
66
200
200
85
74
77
63
±25
±25*
165
mV
mV
mVpp
μSec
mV
%
%
%
%
V
o
= 3.3V
V
o
= 1.8V
V
o
= 2.1V
V
o
= 1.2V
Switching Frequency
o
4.5V
V
in
5.5V
0.3A
I
o
3.0A
500
650
800
kHz
Absolute Maximum
Operating Temperature Range
Recommended Operating
Temperature Range
Thermal Resistance
Storage Temperature
Mechanical Shock
T
a
0
+85
°C
T
a
Free Air Convection (40-60 LFM)
At Vin= 5V, Io=2.5A
Free Air Convection (40-60 LFM)
Per Mil-STD-883D, Method 2002.3 , 1 msec,
Half Sine, mounted to a fixture
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
0
+70**
°C
θ
ja
T
s
-40
25
+125
°C/W
°C
500
G’s
Mechanical Vibration
15
G’s
Weight
6.5
grams
*When used with remote sense function.
**See Thermal Derating chart.
Note:
The PT6420 Series requires two 100μF electrolytic or tantalum capacitors for proper operation in all applications.
相关PDF资料
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PT6425 3.3Vout 3A 5V-Input Adjustable Step-Down ISR
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