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参数资料
| 型号： | MAX16974AUE/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 5V/ADJ 16TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 类型： | 降压（降压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 5V，1 V ~ 10 V |
| 输入电压： | 3.5 V ~ 28 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 260kHz ~ 2.2MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-TSSOP-EP |
High-Voltage, 2.2MHz, 2A Automotive Step-
Down Converter with Low Operating Current
Detailed Description
The MAX16974 is a constant-frequency, current-mode,
automotive buck converter with an integrated high-side
switch. The device operates with 3.5V to 28V input volt-
ages and tolerates input transients up to 42V. During
undervoltage events, such as cold-crank conditions, the
internal pass device maintains up to 92% duty cycle.
An open-drain, active-low reset output helps monitor the
output voltage. The device offers an adjustable reset
threshold that helps keep microcontrollers alive down
to their lowest specified input voltage. A capacitor pro-
grammable reset timeout ensures proper startup.
The switching frequency is resistor programmable from
220kHz to 2.2MHz to allow optimization for efficiency,
noise, and board space. A clock input, FSYNC, allows
the device to synchronize to an external clock.
During light-load conditions, the device enters skip
mode that reduces the quiescent current down to 35 F A.
The 5V fixed output voltage option eliminates the need
for external resistors and reduces the supply current by
up to 50 F A. See Figure 2 for the internal block diagram.
Supply Voltage Range (SUP)
The device’s supply voltage range (V SUP ) is compatible
with the typical 3.5V to 28V automotive battery voltage
range and can tolerate transients up to 42V.
SUP
BIAS
FOSC
BST
SUPSW
I SENSE
DRV
FSYNC
LEVEL
SHIFT
LX
OUT
OSC
SUM
I LIM
EN
STANDBY
SUPPLY
LDO
REF
EA
PWM
COMP
LOGIC
MUX
FB
UVLO
LOGIC FOR
COMP
SOFT-
START
V BIAS
DROPOUT
RES
10μA
CRES
RESETI
COMP
COMP
B.G.
REF
MAX16974
GND
Figure 2. Internal Block Diagram
10_ _ ______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16974EVKIT+ | 功能描述:电源管理IC开发工具 MAX16974 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 |
| MAX16975AAEE/V+ | 功能描述:直流/直流开关转换器 28V 1A 2MHz Step Down 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 |
| MAX16975AAEE/V+T | 功能描述:直流/直流开关转换器 28V 1A 2MHz Step Down 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 |
| MAX16975AEE/V+ | 功能描述:直流/直流开关转换器 28V 1A 2MHz Step Down 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 |
| MAX16975AEE/V+T | 功能描述:直流/直流开关转换器 28V 1A 2MHz Step Down 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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