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参数资料
| 型号： | MAX5023LASA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .15A 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 6.5 V ~ 65 V |
| 电压 - 压降（标准）： | 0.9V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小） |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
65V, Low-Quiescent-Current, High-Voltage Linear
Regulators with μP Reset and Watchdog Timer
Example 1:
T A = +95°C
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
V IN = +14V
V OUT = +5V
Find the maximum allowable output current. First calcu-
late package dissipation at the given temperature as
follows:
P D = 1 . 538 W - ( 0.01923W/ ° C ) ( 95 ° C - 70 ° C )
= 1 . 057 W
Then determine the maximum output current:
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
T A = +125 ° C
V OUT = +5V
DEVICE EXPOSED
PAD SOLDERED TO
1IN 2 COPPER ISLAND
T A = +70 ° C
T A = +85 ° C
( 1 . 057 W ) = 117 . 4 mA
( 14 V ) ( )
I OUT ( MAX ) =
- 5V
0
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
V IN (V)
Figure 6. Maximum Output Current vs. Input Voltage
Example 2:
T A = +125°C
I OUT ( ) = ( 480 . 4 mW ) = 44 . 89 mA
( 14 V ) - ( 3.3V )
V IN = +14V
V OUT = +3.3V
Calculate package dissipation at the given temperature
as follows:
P D = 1 . 538 W - ( 0.01923W/ ° C ) ( 1 25 ° C - 70 ° C )
= 480 . 4 mW
And establish the maximum current:
MAX
Example 3:
T A = +50°C
V IN = +14V
V OUT = +5V
Calculate package dissipation at the given temperature
as follows:
P D = 1.538W
And find the maximum output current:
In Example 3, the maximum output current is calculated
as 170.9mA, however, the maximum output current
cannot exceed 150mA. Use Figure 6 to quickly deter-
mine allowable maximum output current for selected
ambient temperatures.
Capacitor Selection and Regulator
Stability
For stable operation over the full temperature range
and with load currents up to 150mA, use a 15μF (min)
output capacitor with an ESR < 0.5 ? . To reduce noise
and improve load-transient response, stability, and
power-supply rejection, use larger output capacitor val-
ues such as 22μF.
Some ceramic dielectrics exhibit large capacitance
and ESR variation with temperature. For dielectric
capacitors such as Z5U and 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. For high-ESR tantalum capacitors
use 22μF or more to maintain stability. To improve
power-supply rejection and transient response use a
minimum 10μF capacitor between IN and GND.
( ) = 170 . 9 mA ? I
( 14 V ) - ( 5V )
I OUT ( MAX ) =
1 . 538 W
OUT ( MAX ) = 150 mA
______________________________________________________________________________________
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5023MASA | 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 |
| MAX5023MASA+ | 功能描述:线性稳压器 - 标准 65V Low-Q w/uP Reset & Watchdog Timer 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 |
| MAX5023MASA+T | 功能描述:线性稳压器 - 标准 65V Low-Q w/uP Reset & Watchdog Timer 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 |
| MAX5023MASA-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 |
| MAX5023-MAX5024 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:65V, Low-Quiescent-Current, High-Voltage Linear Regulators with レP Reset and Watchdog Timer |
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