參數(shù)資料
型號(hào)： PT78ST200
廠商： Texas Instruments, Inc.
英文描述： 2A 24V-Input Positive Step-Down ISR Family
中文描述： 2A 輸出 24V 輸入正步降 ISR 系列
文件頁數(shù)： 1/3頁
文件大?。?/td> 191K
代理商： PT78ST200
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
18
Application Notes
Mechanical Outline
Product Selector Guide
Revised 5/15/98
12V 2 AMP POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
PT78ST200 S e r i e s
Standard Application
C
1
= Optional 1μF ceramic
C
2
= Required 100μF electrolytic
Pin-Out Information
Pin
1
2
3
Function
V
in
GND
V
out
Ordering Information
PT78ST2
PT78ST200
C2
+
Vout
COM
COM
Vin
C1
1
2
3
High Efficiency > 87%
Wide Input Range
Aluminum Heatsink for
Applications with Airflow
Self-Contained Inductor
Short Circuit Protection
Over-Temperature Protection
Pin Compatible with Linear
3-Terminal, “78” Series Regulators
Small Footprint
The Power Trends’ PT78ST200 is
a new 3-terminal Integrated Switching
Regulator (ISR) that can supply up to 24
watts of regulated 12V power. With a
surge capability of 3 Amps and an out-
put voltage that is laser trimmed, it is
ideal for inductive load applications
such as disk drive motors.
XX
Y
Output Voltage
12
= 12.0 Volts
Package Suffix
V
= Vertical Mount
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
PT78ST200 SERIES
Min
Symbols
Conditions
Typ
Max
Units
I
o
Over V
range
With forced air cooling
V
in
= V
in
min
0.1
≤
I
o
≤
2.0A
Over V
range, I
o
= 2.0A
T
a
= 0°C to +60°C
Over V
in
range
0.1
≤
I
o
≤
2.0A
V
in
=17V, I
o
=2.0A, V
o
=12V
50% load change
V
o
over/undershoot
V
in
=17V, I
o
=2.0A
Over V
in
and I
o
ranges
—
0.1*
—
2.0
A
Short Circuit Current
Input Voltage Range
Output Voltage Tolerance
I
sc
V
in
V
o
—
16
5.0
—
—
28
Apk
V
—
±1.0
±2.0
%Vo
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
(with 100μF output cap)
Efficiency
Switching Frequency
Absolute Maximum
Operating Temperature Range
Recommended Operating
Temperature Range
Thermal Resistance
Storage Temperature
Mechanical Shock
Mechanical Vibration
Reg
line
Reg
load
V
n
t
tr
—
—
—
—
—
—
0.95
-40
±0.4
±0.2
120
100
5.0
87
1.0
—
±0.8
±0.4
—
—
—
—
1.05
+65
%V
o
%V
o
mV
pp
μSec
%V
o
%
MHz
°C
η
o
T
a
T
a
Free Air Convection, (40-60LFM)
at V
in
= 24V, I
o
=2A
Free Air Convection, (40-60LFM)
—
Per Mil-STD-883D, Method 2002.3
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
—
-40
—
+55**
°C
θ
ja
T
s
—
—
—
-40
—
35
—
500
—
+125
—
—
°C/W
°C
G’s
—
10
G’s
Weight
—
—
11
—
Grams
*ISR will operate down to no load with reduced specifications.
**See Thermal Derating chart.
Note:
The PT78ST200 Series requires a 100μF electrolytic or tantalum output capacitor for proper operation in all applications.
Pkg Style 600
相關(guān)PDF資料
PDF描述
PT78VR115S RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
PT78NR100 Wide Input Plus to Minus Voltage ISR Family
PT78VR115V RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
PT78VR152H RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
PT78VR152S Explosion-Proof Sensor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT78ST205H 制造商:Texas Instruments 功能描述:PT78ST1 SERIES, 5.00V, HORIZONTAL - Trays
PT78ST205S 功能描述:REGULATOR 5V 2A 3PSIP HRZ SMD RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT78ST200 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最小）:36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W
PT78ST205V 功能描述:REGULATOR 5V 2A 3PSIP VERT RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT78ST200 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W
PT78ST212 制造商:未知廠家 制造商全稱:未知廠家 功能描述:12Vout 2Amp 24V-Input Positive Step-Down ISR
PT78ST212V 功能描述:DC/DC轉(zhuǎn)換器 12Vout 2A 24V-Input Pos Step-Down ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*