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参数资料
| 型号： | MAX8633ELA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .3A 8UDFN |
| 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，可调式 |
| 输出电压： | 可调 |
| 输入电压： | 2.7 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.09V @ 100mA |
| 稳压器数量： | 2 |
| 电流 - 输出： | 300mA |
| 电流 - 限制（最小）： | 400mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN |
| 供应商设备封装： | 8-uDFN（2x2） |
| 包装： | 带卷 (TR) |
Dual 300mA Pin-Programmable LDO
Linear Regulators
Input-Output Voltage (Dropout Voltage)
A regulator’s minimum input-output voltage differential
(or dropout voltage) determines the lowest usable sup-
ply voltage. In battery-powered systems, this deter-
mines the useful end-of-life battery voltage. Because
the MAX8633 –MAX8636 use a p-channel MOSFET
pass transistor, dropout voltage is a function of drain-
to-source on-resistance (R DS(ON) ) multiplied by the
load current (see Typical Operating Characteristics).
PC Board Layout Guidelines
Follow these guidelines for good PC board layout:
? Keep the input and output traces short and wide if
possible, especially at the ground terminals.
? Use thick copper PC boards to enhance thermal
performance. Connect the exposed paddle of the
TDFN package to the ground plane or a large cop-
per pad.
Calculating Maximum Output Power
The maximum output power of the MAX8633–MAX8636
is limited by the maximum power dissipation of the
package. By calculating the power dissipation of the
device as a function of the input voltage, output volt-
?
?
Place output, input, and bypass capacitors as close
as possible to the IC.
Ensure the noise bypass capacitor and associated
PC board traces are routed away from noise
sources to ensure low-output voltage noise.
ages, and output currents, the worst-case power dissi-
pation can be obtained. The worst-case power
dissipation should not exceed the package’s maximum
power rating:
An evaluation kit (MAX8633EVKIT) is available for a lay-
out example to speed designs.
RESET
where:
P D = ( V IN ( MAX ) – V OUT 1 ) x I OUT 1 +
( V IN ( MAX ) ? V OUT 2 ) x I OUT 2
PART
OUTPUT
VOLTAGE
OPTIONS
Selector Guide
SHDN LOW
INPUTS NOISE
V IN(MAX) = Maximum input voltage
V OUT1 = Output voltage of OUT1
V OUT2 = Output voltage of OUT2
I OUT1 = Maximum output current of OUT1
MAX8633
MAX8634
MAX8635
MAX8636
9
3
9
9
1
2
2
1
—
YES
—
YES
YES
—
—
—
I OUT2 = Maximum output current of OUT2
P D must be less than P DMAX , the maximum power dis-
sipation of the package. If P D is greater than P DMAX ,
Ordering Information (continued)
consider using the 8-pin TDFN package.
P DMAX = 380mW for the 8-pin μDFN. Derate by
4.8mW/ ° C above +70 ° C.
P DMAX = 1904mW for the 8-pin TDFN. Derate by
23.8mW/ ° C above +70 ° C.
PART TEMP RANGE
MAX8634ETA+ -40°C to +85°C
MAX8635 ELA+ -40°C to +85°C
MAX8635ETA+ -40°C to +85°C
MAX8636 ELA+ -40°C to +85°C
MAX8636ETA+ -40°C to +85°C
PIN-
PACKAGE
8 TDFN
3mm x 3mm
8 μDFN
2mm x 2mm
8 TDFN
3mm x 3mm
8 μDFN
2mm x 2mm
8 TDFN
3mm x 3mm
TOP
MARK
AOR
AAJ
AOS
AAK
AOT
+Denotes a lead-free/RoHS-compliant package.
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8633ETA+ | 制造商:Maxim Integrated Products 功能描述:LDO REG 1.5V TO 3V 0.3A 8TDFN EP - Rail/Tube |
| MAX8633ETA+T | 功能描述:低压差稳压器 - LDO Dual 300mA Pin-Prog LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8633EVKIT | 功能描述:低压差稳压器 - LDO Evaluation Kit for the MAX8633 RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8634ELA+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8634ELA+T | 功能描述:低压差稳压器 - LDO Dual 300mA Pin-Prog LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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