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参数资料
| 型号： | NCP1086ST-ADJT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.5A SOT223 |
| 产品变化通告： | Product Discontinuation 27/Jun/2007 |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.25 V ~ 5.5 V |
| 输入电压： | 最高 7V |
| 电压 - 压降（标准）： | 1.05V @ 1.5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A |
| 电流 - 限制（最小）： | 1.6A |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-261-4，TO-261AA |
| 供应商设备封装： | SOT-223 |
| 包装： | 带卷 (TR) |
| 其它名称： | NCP1086ST-ADJT3OS |
NCP1086
85
75
65
55
85
75
65
55
45
35
25
T CASE = 25 ° C
I OUT = 6A
(V IN ? V OUT = 3V)
V RIPPLE = 1.6V PP
C Adj = 0.1 m F
45
35
25
T CASE = 25 ° C
I OUT = 6A
(V IN ? V OUT = 3V)
V RIPPLE = 1.6V PP
15
10 1
10 2
10 3
10 4
10 5
10 6
15
10 1
10 2
10 3
10 4
10 5
10 6
Frequency (Hz)
Figure 11. Ripple Rejection vs. Frequency
(Adjustable Output)
0.100
0.65
Frequency (Hz)
Figure 12. Ripple Rejection vs. Frequency
(3.3 V Fixed Output)
0.075
0.60
0.55
T CASE = 0 ° C
0.050
0.025
T CASE = 125 ° C
T CASE = 25 ° C
0.50
0.45
T CASE = 25 ° C
T CASE = 125 ° C
0
0
1.0
T CASE = 0 ° C
2.0
0.40
1.0
2.0
3.0
C IN = C OUt = 22 m F Tantalum
4.0 5.0 6.0
7.0
Output Current (A)
Figure 13. Load Regulation vs. Output Current
(Adjustable Output)
V IN ? V OUT (V)
Figure 14. Minimum Load Current vs V IN ? V OUT
(Adjustable Output)
APPLICATIONS INFORMATION
The NCP1086 voltage regulator series provides
adjustable and 3.3 V output voltages at currents up to 1.5 A.
The regulator is protected against overcurrent conditions
and includes thermal shutdown.
The NCP1086 series has a composite PNP ? NPN output
transistor and requires an output capacitor for stability. A
detailed procedure for selecting this capacitor is included in
the Stability Considerations section.
A resistor divider network R1 and R2 causes a fixed
current to flow to ground. This current creates a voltage
across R2 that adds to the 1.25 V across R1 and sets the
overall output voltage. The adjust pin current (typically
50 m A) also flows through R2 and adds a small error that
should be taken into account if precise adjustment of V OUT
is necessary.
The output voltage is set according to the formula:
R1 ) R2 ) I Adj
Adjustable Operation
The adjustable output device has an output voltage range
VOUT + VREF
R1
R2
of 1.25 V to 5.5 V. An external resistor divider sets the
output voltage as shown in Figure 15. The regulator
The term I Adj × R2 represents the error added by the adjust
pin current.
maintains a fixed 1.25 V (typical) reference between the
output pin and the adjust pin.
http://onsemi.com
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1086ST-ADJT3G | 功能描述:低压差稳压器 - LDO 1.25-5.5V ADJ 1.5A Commercial Temp RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP1086T-033 | 功能描述:低压差稳压器 - LDO 3.3V 1.5A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP1086T-033G | 功能描述:低压差稳压器 - LDO 3.3V 1.5A Commercial Temp RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| NCP1086T-33 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:1.5 A Adjustable and 3.3 V Fixed Output Linear Regulator |
| NCP1086T-ADJ | 功能描述:低压差稳压器 - LDO 1.25-5.5V ADJ 1.5A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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