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参数资料
| 型号： | 78ST151HC |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, SMA3 |
| 封装： | SIP-3 |
| 文件页数： | 1/5页 |
| 文件大小： | 238K |
| 代理商： | 78ST151HC |
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
Revised 6/30/98
Standard Application
C1 = Optional 1F ceramic
C2 = Required 100F electrolytic
Pin-Out Information
Pin
Function
1Vin
2
GND
3Vout
Ordering Information
78ST1
C
XX
Y
33
= 3.3 Volts
36
= 3.6 Volts
05
= 5.0 Volts
51
= 5.1 Volts
65
= 6.5 Volts
07
= 7.0 Volts
08
= 8.0 Volts
09
= 9.0 Volts
12
= 12.0 Volts
Package Suffix
V
= Vertical Mount
S
= Surface Mount
H
= Horizontal
Mount
1.5 AMP POSITIVE STEP-DOWN
INTEGRATED SWITCHING REGULATOR
Very Small Footprint
High Efficiency > 85%
Self-Contained Inductor
Internal Short-Circuit Protection
Over-Temperature Protection
Fast Transient Response
Wide Input Range
The 78ST100 is a series of wide input
voltage, 3-terminal Integrated Switching
Regulators (ISRs). These ISRs have a maxi-
mum output current of 1.5A and an output
voltage that is laser trimmed to a variety of
industry standard voltages.
These 78 series regulators have excellent
line and load regulation with internal short-
circuit and over-temperature protection, are
very flexible, and may be used in a wide
variety of applications.
78ST100
Series
Output Voltage
Specifications
Characteristics
78ST100 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0.1*
—
1.5
A
Short Circuit Current
Isc
Vin = Vin min
—
3.5
—
Apk
Input Voltage Range
Vin
0.1
≤ I
o ≤ 1.5A
Vo= 3.3V
7
—
26
V
Vo= 5V
7
—
30
V
Vo= 12V
14.5
—
30
V
Output Voltage Tolerance
V
o
Over Vin range, Io=1.5A
—
±1.0
±2.0
%Vo
Ta = 0°C to +60°C
Line Regulation
Regline
Over Vin range
—
±0.2
±0.4
%Vo
Load Regulation
Regload
0.1
≤ I
o ≤ 1.5A
—
±0.1
±0.2
%Vo
Vo Ripple/Noise
Vn
Vin= 9V, Io= 1.5A
Vo= 5V
—
65
—
mVpp
Vin= 16V, Io= 1.5A
Vo= 12V
90
mVpp
Transient Response
ttr
50% load change
—
100
—
Sec
(with 100F output cap)
Vo over/undershoot
—
5
—
%Vo
Efficiency
η
Vin= 10V, Io= 1A
Vo= 3.3V
—
80
—
%
Vin= 10V, Io= 1A
Vo= 5V
—
85
—
%
Vin= 17V, Io= 1A
Vo= 12V
—
90
—
%
Switching Frequency
o
Over Vin range, Io=1.5A
600
650
700
kHz
Absolute Maximum
Ta
—
-40
—
+85
°C
Operating Temperature Range
Recommended Operating
Ta
Free Air Convection, (40-60LFM)
Temperature Range
At Vin= 24V, Io=1.0A
-40
—
+80**
°C
Thermal Resistance
θ
ja
Free Air Convection, (40-60LFM)
—
45
—
°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
—
6.5
—
grams
*ISR will operate down to no load with reduced specifications.
**See Thermal Derating chart.
Note: The 78ST100 Series requires a 100F electrolytic or tantalum output capacitor for proper operation in all applications.
78ST100
C2
+
Vout
GND
Vin
C1
1
2
3
Pkg Style 500
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 78ST151SC | 制造商:TI 制造商全称:Texas Instruments 功能描述:1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 78ST151SCT | 制造商:TI 制造商全称:Texas Instruments 功能描述:1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 78ST151VC | 制造商:TI 制造商全称:Texas Instruments 功能描述:1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 78ST153HC | 制造商:Texas Instruments 功能描述:- Trays |
| 78ST153SC | 功能描述:REGULATOR 5.25V SMD RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:78ST100 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 |
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