参数资料
| 型号： | MAX15030ATB+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A 10-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.5 V ~ 3.3 V |
| 输入电压： | 1.43 V ~ 3.6 V |
| 电压 - 压降（标准）： | 0.04V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA |
| 电流 - 限制（最小）： | 700mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 标准包装 |
| 产品目录页面： | 1412 (CN2011-ZH PDF) |
| 其它名称： | MAX15030ATB+TDKR |
1.425V to 3.6V Input, 500mA Low-Dropout
Regulators with BIAS Input
C OUT OUT ( MAX ) × ?
? 1 μ F ?
? 0 . 25 A ? ?
Capacitor Selection and
Regulator Stability
Capacitors are required at the MAX15029/MAX15030’s
inputs and outputs for stable operation over the full
temperature range and with load currents up to
500mA. Connect a 1μF capacitor between IN and
ground and a 2.2μF capacitor with low equivalent
series resistance (ESR) between OUT and ground for
500mA output current.
The input capacitor (C IN ) lowers the source impedance
of the input supply. If input supply source impedance is
high, place a larger input capacitor close to IN to pre-
vent V IN sagging due to load transients. Smaller output
capacitors can be used for output currents less than
500mA. Calculate the minimum C OUT as follows:
= I
Operating Region and
Power Dissipation
The maximum power dissipation depends on the ther-
mal resistance of the IC package and circuit board, the
temperature difference between the die junction and
ambient air, and the rate of airflow. The power dissipat-
ed in the device is P DISS = I OUT (V IN - V OUT ). The
package features an exposed thermal pad on its
underside. This pad lowers the thermal resistance of
the package by providing a direct heat conduction
path from the die to the PCB. Additionally, the ground
pins (GND) perform the dual function of providing an
electrical connection to system ground and channeling
heat away. Connect the exposed backside pad and
GND to the system ground using a large pad or ground
plane and multiple vias to the ground plane layer.
Noise, PSRR, and Transient Response
The MAX15029/MAX15030 are designed to operate
with low-dropout voltages and low quiescent currents
while still maintaining good noise performance, tran-
sient response, and AC rejection (see the Typical
Operating Characteristics). When operating from noisy
sources, improved supply-noise rejection and transient
response can be achieved by increasing the values of
the input and output bypass capacitors and through
passive filtering techniques. The MAX15029/MAX15030
load-transient response graphs (see the Typical
Operating Characteristics) show two components of the
output response: a DC shift from the output impedance
due to the load current change, and the transient
response. A typical transient overshoot for a step
change in the load current from 100mA to 500mA is
10mV. Use ceramic output capacitors greater than
2.2μF (up to 100μF) to attenuate the overshoot.
Layout Guidelines
The TDFN package has an exposed thermal pad on its
underside. This pad provides a low thermal resistance
path for heat transfer into the PCB. This low thermally
resistive path carries a majority of the heat away from
the IC. The PCB is effectively a heatsink for the IC. The
exposed pad should be connected to a large ground
plane for proper thermal and electrical performance.
The minimum size of the ground plane is dependent
upon many system variables. To create an efficient
path, the exposed pad should be soldered to a thermal
landing, which is connected to the ground plane by
thermal vias. The thermal landing should be at least as
large as the exposed pad.
_______________________________________________________________________________________
9
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| MAX15031ATE+ | 功能描述:直流/直流开关转换器 80V 300mW Boost Conv/Current Mtr RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX15031ATE+T | 功能描述:直流/直流开关转换器 80V 300mW Boost Conv/Current Mtr RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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| MAX15031EVKIT+ | 功能描述:电源管理IC开发工具 MAX15031 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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