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参数资料
| 型号： | MAX5086AATE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V/ADJ .25A 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 @ 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 |
45V, 250mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Detailed Description
The MAX5086 high-voltage linear regulator includes an
integrated microprocessor reset circuit with an
adjustable reset timeout period (see the Adjustable
Reset Timeout Period (CT) section). The device guaran-
tees a 250mA load current and is available with a pre-
set output voltage of 3.3V (MAX5086A) or 5V
6.5V TO 45V
47 μ F
ON
IN
MAX5086
OUT
R1
2.5V TO 11V
15 μ F
R3
(MAX5086B). Both devices can be configured to pro-
vide an adjustable output voltage from 2.5V to 11V. The
internal reset circuit monitors the regulator output volt-
OFF
EN
OUTSENSE
RESET
TO μ P
age and asserts RESET low when the regulator output
falls below the reset threshold voltage. Other features
include an enable (regulator control input), 21μA (max)
C CT
CT
GND
SET
R2
shutdown current, short-circuit protection (see the
Output Short-Circuit Current Limit section), and thermal
shutdown (see the Thermal Protection section).
Regulator
The MAX5086 accepts an input voltage range from
6.5V to 45V and offers a fixed output voltage of 3.3V or
5V. For an adjustable output voltage operation, use an
external resistive divider network connected between
OUT, SET, and GND (see Figure 2).
Enable Input (EN)
EN is a logic-level enable input that turns ON/OFF the
device. Drive EN high to turn on the device and drive
EN low to place the device in shutdown. The MAX5086
draws 13μA (typ) of supply current when in shutdown.
EN withstands voltages up to +45V, allowing EN to be
connected to IN for an always-on operation.
Remote Sensing (OUTSENSE)
For fixed output voltage versions, OUTSENSE must be
used for load voltage sensing. Leave OUTSENSE open
circuit when using adjustable output voltage version.
Reset Output ( RESET )
A supervisor circuit is fully integrated in the MAX5086
and uses the same reference voltage as the regulator.
RESET goes low if V OUT drops below the preset output
voltage threshold, and remains low at least for the time-
out period after V OUT rises above the reset voltage
threshold.
V OUT = V SET (1 + R1/R2)
V SET = 1.23V
Figure 2. Setting the Adjustable Output Voltage
Adjustable Reset Timeout Period (CT)
The MAX5086 features a user-adjustable reset timeout.
Connect a capacitor from CT to GND to set the reset
timeout period (see Figure 2) and use the following
equation to calculate the timeout period:
t RP = C CT x 0.6175 x 10 6
where C CT is the value of the external capacitor con-
nected from CT to GND and t RP is in seconds.
Thermal Protection
When the junction temperature exceeds T J = 175°C an
internal thermal sensor signals the shutdown logic,
which turns off the pass transistor, allowing the IC to
cool. The thermal sensor turns the pass transistor on
again after the IC’s junction temperature cools by 25°C,
resulting in a cycled output during continuous thermal-
overload conditions. Thermal protection protects the
MAX5086 in the event of fault conditions. During contin-
uous operation, do not exceed the absolute maximum
junction temperature rating of T J = +150°C.
Output Short-Circuit Current Limit
The MAX5086 features a current limit. The output can
be shorted to GND for an indefinite period of time (for
V IN < 16V) without damage to the device.
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5086AATE/V+ | 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 |
| MAX5086AATE/V+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 |
| MAX5086AATE+ | 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 |
| MAX5086AATE+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 |
| MAX5086AATE-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 |
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