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参数资料
| 型号： | MAX8556ETE/V+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 4A 16WQFN |
| 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，可调式 |
| 输出电压： | 0.5 V ~ 3.4 V |
| 输入电压： | 1.43 V ~ 3.6 V |
| 电压 - 压降（标准）： | 0.1V @ 4A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 4A |
| 工作温度： | -40°C ~ 85°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 |
4A Ultra-Low-Input-Voltage
LDO Regulators
Pin Description
PIN
1–6
7–11
12
13
14
15
16
—
NAME
IN
OUT
POK
(MAX8556)
POR
(MAX8557)
FB
GND
N.C.
EN
EP
FUNCTION
LDO Input. Connect to a 1.425V to 3.6V input voltage. Bypass with a 22μF ceramic capacitor to GND.
LDO Output. Bypass with 2 x 10μF ceramic capacitors to GND. A smaller capacitance can be used if
the maximum load current is less than 4A.
Power-OK Output. Open-drain output that pulls low when V OUT is outside ±10% of the expected
regulation voltage or when EN is low. POK is high impedance when V OUT is within ±10% of the
nominal output voltage. Connect a resistor from POK to a logic supply of less than 3.6V.
Power-On Reset. Open-drain output goes high impedance 140ms after the output is above 90% of its
nominal regulation voltage. POR pulls low immediately after an output fault or when EN is low.
Connect a resistor from POR to a logic supply of less than 3.6V.
Feedback Input. V FB is regulated to 0.5V. Connect to the center tap of a resistor-divider from output
to GND to set the desired output voltage.
Ground
Connect to GND or Leave Unconnected
Enable Input. Connect to GND or a logic low to shut down the device. Connect to IN or a logic high
for normal operation.
Exposed Paddle. Connect to GND and to a ground plane for heatsinking.
Block Diagram
IN
THRESHOLD
THERMAL-
OVERLOAD
PROTECTION
0.50V
UNDERVOLTAGE
LOCKOUT
ERROR
AMP
P
REF
0.45V
0.55V
CURRENT-
OUT
EN
SHUTDOWN
LOGIC
LIMIT
COMPARATOR
FB
POK
(POR)
GND
MAX8556
(MAX8557)
POK (POR)
CIRCUITRY
N
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8556EVKIT | 功能描述:低压差稳压器 - 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 |
| MAX8557ETE | 功能描述:低压差稳压器 - 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 |
| MAX8557ETE+ | 功能描述:低压差稳压器 - LDO 4A Ultra-Low-Input-V LDO Regulator 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 |
| MAX8557ETE+T | 功能描述:低压差稳压器 - LDO 4A Ultra-Low-Input-V LDO Regulator 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 |
| MAX8557ETE-T | 功能描述:低压差稳压器 - 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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