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参数资料
| 型号： | MAX5086BATE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V/ADJ 16-TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 稳压器拓扑结构： | 正，固定式或可调式 |
| 输出电压： | 5V，2.5 V ~ 11 V |
| 输入电压： | 6.5 V ~ 45 V |
| 电压 - 压降（标准）： | 0.9V @ 250mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 250mA（最小） |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 包装： | 管件 |
| 产品目录页面： | 1411 (CN2011-ZH PDF) |
45V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Applications Information
Output Voltage Selection
The MAX5086 features dual-mode operation, in either a
preset voltage mode or an adjustable mode. In preset
voltage mode, internal feedback resistors set the
MAX5086’s output voltage to +3.3V or +5V. Select pre-
set voltage mode by connecting SET to ground. In
adjustable mode, select an output between +2.5V and
+11V using two external resistors connected as a volt-
age-divider to SET (Figure 2). Set the output voltage
using the following equation:
4.0
3.5
3.0
2.5
2.0
1.5
1.0
MAXIMUM POWER DISSIPATION
vs. TEMPERATURE
2.666W
DERATE
33.3mW/ ° C
V OUT = V SET x ? 1 +
?
?
?
R 1 ?
R 2 ?
0.5
0
0
20
40
60
80
100 120 140
?
?
? ?
P D = ? 2 . 666 W ? 0 . 0333
x ( T A ? 70 ° C ) ?
?
?
P D = 2 . 666 W ? 0 . 0333
(85 ° C ? 70 ° C) = 2 . 1665 W
I OUT(MAX) =
= 271mA
where V SET = 1.23V and R2 is chosen to be approxi-
mately 100k Ω .
Available Output Current Calculation
The MAX5086 high-voltage regulator provides up to
250mA of output current. The input voltage extends to
+45V. Package power dissipation limits the amount of
output current available for a given input/output voltage
and ambient temperature. Figure 3 depicts the maxi-
mum power dissipation curve for these devices. The
graph assumes that the exposed pad of the MAX5086
package is set up per JEDEC specifications.
Use Figure 3 to determine the allowable package dissi-
pation (P D ) for a given ambient temperature.
Alternately, use the following formula to calculate the
allowable package dissipation:
? 2 . 666 W for T A ≤ + 70 ° C ?
W
° C
? ?
? For + 70 ° C < T A ≤ + 125 ° C ?
After determining the allowable package dissipation
calculate the maximum output current using the follow-
ing formula:
TEMPERATURE ( ° C)
Figure 3. Calculated Maximum Power Dissipation vs.
Temperature
Example 1:
T A = +85°C
V IN = +14V
V OUT = +5V
Find the maximum allowable output current. First calcu-
late package dissipation at the given temperature as
follows:
W
° C
Then determine the maximum output current:
(2.1665W)
(14V) ? (5V)
I OUT(MAX) ?
P D
V IN ? V OUT
≤ 250mA
The above equations do not include the negligible
power dissipation from self-heating due to the IC
ground current.
_______________________________________________________________________________________
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相关代理商/技术参数 |
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|---|---|
| MAX5086BATE+ | 功能描述:线性稳压器 - 标准 65V 200mA Low-Q RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MAX5086BATE+T | 功能描述:线性稳压器 - 标准 65V 200mA Low-Q RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MAX5086EVKIT | 功能描述:线性稳压器 - 标准 65V 25mA Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MAX5086EVKIT+ | 功能描述:线性稳压器 - 标准 Evaluation Kit for the MAX5086 RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MAX5087 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:45V, 400mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay |
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