- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄63651 > 78HT253VC SWITCHING REGULATOR, SMA3 PDF資料下載
參數(shù)資料
| 型號： | 78HT253VC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, SMA3 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 475K |
| 代理商： | 78HT253VC |
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
2 AMP POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
78HT200
Series
Standard Application
C1 = Optional 1F ceramic
C2 = Required 100F electrolytic
Pin-Out Information
Pin No. Function
1Vin
2
GND
3Vout
Ordering Information
78HT2
C
Output Voltage
(For dimensions and PC board
layout see Package Style 500.)
XX
Y
33
= 3.3 Volts
46
= 4.6 Volts
05
= 5.0 Volts
53
= 5.25 Volts
65
= 6.5 Volts
75
= 7.5 Volts
10
= 10.0 Volts
Package Suffix
V
= Vertical Mount
S
= Surface Mount
H
= Horizontal
Mount
High Efficiency > 82%
Wide Input Range
Self-Contained Inductor
Short-Circuit Protection
Over-Temperature Protection
Fast Transient Response
The 78HT200 is a series of wide
input voltage, 3 terminal Integrated
Switching Regulators (ISRs). Employ-
ing a ceramic substrate, these ISRs
have a maximum output current of 2A.
The output voltage is laser trimmed
for high accuracy.
The 78HT200 series regulators
have internal short-circuit and over-
temperature protection and may be
used in a wide variety of applications.
78HT200
C2
+
Vout
GND
Vin
C1
1
2
3
Specifications
Characteristics
78HT200 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0.1*
—
2.0
A
Input Voltage Range
Vin
Io = 0.1 to 2.0A
Vo < 4.6V
7
—
15
V
Vo > 4.6V
Vo +2V
—
28
V
Output Voltage Tolerance
Vo
Over Vin range, Io = 2.0A
—
±1.0
±2.0
%Vo
Ta = 0°C to +60°C
Line Regulation
Regline
Over Vin range
—
±0.4
±0.8
%Vo
Load Regulation
Regload
0.1
≤ Io ≤ 2.0A
—
±0.2
±0.4
%Vo
Ripple/Noise
Vn
Vin = Vin min, Io = 2.0A
—
1
—
%Vo
Transient Response
ttr
50% load change
—
100
—
Sec
(with 100F output cap)
Vo over/undershoot
5.0
%Vo
Efficiency
η
Vin = 9V, Io = 2.0A, Vo = 5V
—
82
—
%
Switching Frequency
o
Over Vin and Io ranges Vo > 4.6V
700
750
800
kHz
Vo = 3.3V
0.95
1.0
1.05
MHz
Absolute Maximum
Ta
—
-40
—
+85
°C
Operating Temperature Range
Recommended Operating
Ta
Free Air Convection, (40-60LFM)
-40
—
+85**
°C
Temperature Range
Over Vin and Io ranges
Thermal Resistance
θja
Free Air Convection, (40-60LFM)
—
38
—
°C/W
Storage Temperature
Ts
—
-40
—
+125
°C
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3
—
500
—
G’s
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2,
—5
—G’s
20-2000 Hz, soldered in a PC board
Weight
—
7
—
Grams
* ISR will operate down to no load with reduced specifications.
** See Thermal Derating chart.
Note: The 78HT200 Series requires a 100F electrolytic or tantalum output capacitor for proper operation in all applications.
Revised 9/22/99
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 78HT246V | DC-DC REG PWR SUPPLY MODULE |
| 78HT253S | DC-DC REG PWR SUPPLY MODULE |
| 78HT205HC | SWITCHING REGULATOR, SMA3 |
| 78HT275S | DC-DC REG PWR SUPPLY MODULE |
| 78HT265HC | SWITCHING REGULATOR, SMA3 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 78HT265 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:6.5Vout 2A Wide Input Positive Step-Down ISR |
| 78HT265HC | 功能描述:DC/DC轉(zhuǎn)換器 6.5Vout 2A Wide Inp 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: |
| 78HT265SC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 78HT265TC | 功能描述:DC/DC轉(zhuǎn)換器 6.5Vout 2A Wide Inp 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: |
| 78HT265VC | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。