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参数资料
| 型号： | PT78ST174ST |
| 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： | 2/7页 |
| 文件大小： | 225K |
| 代理商： | PT78ST174ST |
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Typical Characteristics
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
913
17
21
25
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
9
12
1518212427
30333639
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
16
19
22
25
28
31
34
37
40
PT78ST133, 3.3 VDC
(See Note 1)
PT78ST105, 5.0 VDC (See Note 1)
PT78ST112, 12.0 VDC
(See Note 1)
Efficiency vs Output Current
Ripple vs Output Current
Thermal Derating (Ta)
(See Note 2)
Power Dissipation vs Output Current
Efficiency
-
%
Ripple-(mV)
Iout-(Amps)
PD-(W
atts)
Efficiency
-
%
Efficiency
-
%
Ripple-(mV)
Iout-(Amps)
PD-(W
atts)
PD-(W
atts)
Iout-(Amps)
Vin-(Volts)
40
50
60
70
80
90
100
0
0.25
0.5
0.75
1
1.25
1.5
9.0V
12.0V
15.0V
20.0V
26.0V
Vin
40
50
60
70
80
90
100
0
0.25
0.5
0.75
1
1.25
1.5
16.0V
18.0V
24.0V
30.0V
38.0V
Vin
0
50
100
150
200
250
300
0
0.25
0.5
0.75
1
1.25
1.5
38.0V
30.0V
24.0V
18.0V
16.0V
Vin
0
20
40
60
80
100
00.25
0.5
0.7511.25
1.5
26.0V
20.0V
15.0V
12.0V
9.0V
Vin
0
0.5
1
1.5
2
2.5
3
0
0.25
0.5
0.75
1
1.25
1.5
38.0V
30.0V
24.0V
18.0V
16.0V
Vin
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
00.25
0.5
0.7511.25
1.5
26.0V
20.0V
15.0V
12.0V
9.0V
Vin
85°C
60°C
70°C
85°C
70°C
Note 1:
All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Note 2:
Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.)
40
50
60
70
80
90
100
0
0.25
0.5
0.75
1
1.25
1.5
9.0V
12.0V
18.0V
24.0V
30.0V
38.0V
Vin
0
30
60
90
120
150
0
0.25
0.5
0.75
1
1.25
1.5
38.0V
30.0V
24.0V
18.0V
12.0V
9.0V
Vin
0
0.5
1
1.5
2
2.5
0
0.25
0.5
0.75
1
1.25
1.5
38.0V
30.0V
24.0V
18.0V
12.0V
9.0V
Vin
60°C
70°C
60°C
Efficiency vs Output Current
Ripple vs Output Current
Thermal Derating (Ta)
(See Note 2)
Thermal Derating (Ta)
(See Note 2)
Power Dissipation vs Output Current
1.5 Amp Positive Step-Down
Integrated Switching Regulator
PT78ST100 Series
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT78ST174V | 功能描述:REGULATOR 7.15V 1.5A 3PSIP VERT RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:PT78ST100 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 |
| PT78ST2 | 制造商:TI 制造商全称:Texas Instruments 功能描述:12V 2 Amp Positive Step-Down Integrated Switching Regulator |
| PT78ST200 | 制造商:TI 制造商全称:Texas Instruments 功能描述:12V 2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR |
| 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 类别:电源 - 板载 >> DC DC Converters 系列:PT78ST200 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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