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参数资料
| 型号： | PT6409 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | 2.5Vout 3A 5V-Input Adjustable Step-Down ISR |
| 中文描述： | 2.5V 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： | 227K |
| 代理商： | PT6409 |
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
24
Application Notes
Mechanical Outline
Product Selector Guide
Revised 5/15/98
PT6400
Standard Application
C
1
= Required 100μF electrolytic
C
2
= Required 100μF electrolytic
Ordering Information
PT6404
¨
= +1.5 Volts
PT6405
¨
= +3.3 Volts
PT6406
¨
= +1.8 Volts
PT6407
¨
= +2.1 Volts
PT6408
¨
= +1.2 Volts
PT6409
¨
= +2.5 Volts
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Function
Do not connect
V
in
V
in
V
in
GND
GND
GND
GND
V
out
V
out
V
out
V
out
Adjust
Single-Device 5V to 3V Power
85% Efficiency
Small SIP Footprint
Adjustable Output Voltage
The PT6400 is a high performance
+5V to +3.3V, 3 Amp, 12-Pin SIP (Single
In-line Package) Integrated Switching
Regulator (ISR) designed for stand alone
(not parallelable) operation. This high-
performance ISR allows easy integration
of low-power 3.3V logic IC’s into existing
5V systems without redesigning the central
power supply. Only two external capacitors
are required for proper operation. The
output voltage is easily adjustable with one
external resistor. The PT6406,7,8 can be
used to terminate high-speed data buses
such as Futurebus (+2.1V) or the new GTL
(+1.2V) logic buses.
Please note that this product does not
include short circuit protection.
3 AMP ADJUSTABLE
INTEGRATED SWITCHING REGULATOR
P T 6 4 0 0
S e r i e s
Pin-Out Information
Note: Back surface
of product is
conducting metal.
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
Current Limit
Input Voltage Range
Output Voltage Tolerance
PT6400 SERIES
Min
0.1*
—
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
—
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
mV
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 V
in
= 5V, I
o
=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
*ISR will operate down to no load with reduced specifications
**See Thermal Derating chart.
Note:
The PT6400 Series requires two 100μF electrolytic or tantalum capacitors for proper operation in all applications.
—
—
6.5
—
grams
Pkg Style 300
PT6400
C2
100μF
+
COM
V
OUT
2,3,4
5,6,7,8
9,10,11
12
C1
100μF
+
V
IN
COM
R1
(V
O
UP)
R2
(V
O
DOWN)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT6409B | 功能描述:REGULTR 2.5V 3A SYNC 12XL SMD RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT6400 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT6409D | 功能描述:DC/DC转换器 2.5Vout 3A 5V-Inp Adj Step-Down ISR RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT6409E | 功能描述:DC/DC转换器 2.5Vout 3A 5V-Inp Adj Step-Down ISR RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT6409P | 功能描述:DC/DC转换器 Adjustable Step Down ISR RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT6420 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3 AMP ADJUSTABLE INTEGRATED SWITCHING REGULATOR |
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