- 您现在的位置：买卖IC网 > PDF目录92645 > 78ST233VC (TEXAS INSTRUMENTS INC) 2 A SWITCHING REGULATOR, 1050 kHz SWITCHING FREQ-MAX, SMA3 PDF资料下载
参数资料
| 型号： | 78ST233VC |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING REGULATOR, 1050 kHz SWITCHING FREQ-MAX, SMA3 |
| 封装： | ROHS COMPLIANT |
| 文件页数： | 1/4页 |
| 文件大小： | 219K |
| 代理商： | 78ST233VC |
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
78ST200
Series
Standard Application
C1 = Optional 1F ceramic
C2 = Required 100F electrolytic
Pin-Out Information
Pin No. Function
1Vin
2
GND
3Vout
Ordering Information
78ST2
C
Output Voltage
(For dimensions and PC board
layout see Package Style 500.)
XX
Y
33
= 3.3 Volts
35
= 3.45 Volts
05
= 5.0 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 78ST200 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 78ST200 series regulators
have internal short-circuit and over-
temperature protection and may be
used in a wide variety of applications.
78ST200
C2
+
Vout
GND
Vin
C1
1
2
3
Specifications
Characteristics
78ST200 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 3.0A
Vo < 3.5V
7
—
15
V
Vo = 5.0V
8
—
20
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
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
θ
ja
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 78ST200 Series requires a 100F electrolytic or tantalum output capacitor for proper operation in all applications.
Revised 6/30/98
相关PDF资料 |
PDF描述 |
|---|---|
| 78ST233SC | 2 A SWITCHING REGULATOR, 1050 kHz SWITCHING FREQ-MAX, SMA3 |
| 78ST305SC | 3 A SWITCHING REGULATOR, 1050 kHz SWITCHING FREQ-MAX, SMA3 |
| 78ST305SCT | 3 A SWITCHING REGULATOR, 1050 kHz SWITCHING FREQ-MAX, SMA3 |
| 7BP08 | SPECIALTY ANALOG CIRCUIT, XMA |
| 7BP04 | SPECIALTY ANALOG CIRCUIT, XMA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 78ST235 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.45Vout 2A Wide Input Positive Step-Down ISR |
| 78ST235HC | 功能描述:IC REG BUCK 3.45V 2A 3SIP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
| 78ST235SC | 制造商:TI 制造商全称:Texas Instruments 功能描述:2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 78ST235VC | 制造商:TI 制造商全称:Texas Instruments 功能描述:2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 78ST300 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
发布紧急采购，3分钟左右您将得到回复。