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| 型号： | MAX5087AATE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V/ADJ .4A 16-TQFN |
| 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： | 3.3V，2.5 V ~ 11 V |
| 输入电压： | 6.5 V ~ 45 V |
| 电压 - 压降（标准）： | 0.9V @ 400mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 400mA（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 |
MAX5087
45V, 400mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Calculate package dissipation at the given temperature
as follows:
0.50
0.45
V OUT = +5V
P D = 2.666W ? 0.0333
W
° C
(125 ° C ? 70 ° C) = 0 . 8345 W
0.40
0.35
0.30
T A = +70 ° C
T A = +85 ° C
T A = +125 ° C
And establish the maximum current:
0.25
0.20
I OUT(MAX) =
(1.191W)
(14V) ? (5V)
= 92 . 7 mA
0.15
0.10
0.05
Example 3:
0
T A = +50°C
V IN = +14V
0
5
10
15
20 25
V IN (V)
30
35
40
45
V OUT = +10V
Calculate package dissipation at the given temperature
as follows:
P D = 2.666W
And find the maximum output current:
Figure 4. Maximum Output Current vs. Input Voltage (16-Pin
TQFN)
Output-Capacitor Selection and
Regulator Stability
For stable operation over the full temperature range
I OUT(MAX) =
(2.666W)
(14V) ? (10V)
= 666 mA ? I OUT(MAX) = 4 0 0mA
and with load currents up to 400mA, use a 15μF (min)
output capacitor with an ESR < 0.25 Ω . To reduce noise
and improve load-transient response, stability, and
In example 3 the maximum output current is calculated
as 666mA, however, the maximum output current can-
not exceed 400mA.
Use Figure 4 to quickly determine maximum allowable out-
put current for selected ambient temperatures.
10
power-supply rejection use larger output capacitor val-
ues such as 22μF.
Some ceramic capacitor dielectrics exhibit large
capacitance and ESR variation with temperature. For
capacitor dielectrics such as Y5V, use 22μF or more to
ensure stability at temperatures below -10°C. With X7R
or X5R dielectrics, 15μF should be sufficient at all oper-
ating temperatures. To improve power supply rejection
and transient response, use a minimum 47μF low-ESR
capacitor from IN to GND.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5087AATE+ | 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 |
| MAX5087AATE+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 |
| MAX5087AATE-T | 功能描述:线性稳压器 - 标准 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 |
| MAX5087AATN | 制造商:Maxim Integrated Products 功能描述:65V 400MA LOW-QUIESCENT-CURRENT L - Rail/Tube |
| MAX5087AATN+ | 制造商:Maxim Integrated Products 功能描述:REG STD LIN ADJ/FIX POS 2.5V TO 11V/3.3V 0.4A 56TQFN EP - Rail/Tube |
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