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参数资料
| 型号： | MAX16922ATPD/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC DCDC CONV STPDN DL LDO 20TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 车载系统 |
| 电源电压： | 3.7 V ~ 28 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
EVALUATION KIT AVAILABLE
MAX16922
2.2MHz, Dual, Step-Down DC-DC
Converters, Dual LDOs, and RESET
General Description
The MAX16922 power-management integrated circuit
(PMIC) is designed for medium power-level automotive
applications and integrates multiple supplies in a small
footprint. The device includes one high-voltage step-
down converter (OUT1) and three low-voltage cascad-
ed DC-DC converters (OUT2, OUT3, OUT4). OUT1 and
OUT2 are step-down DC-DC converters, and OUT3/
OUT4 are linear regulators. The device also includes a
reset output ( RESET ) and a high-voltage-compatible
enable input (EN).
The 1.2A output high-efficiency, step-down DC-DC con-
verter (OUT1) operates from a voltage up to 28V contin-
uous and is protected from load-dump transients up to
45V. The 600mA output high-efficiency step-down DC-
DC converter (OUT2) runs from a voltage up to 5.5V.
The two 300mA LDO linear regulators offer low dropout
of only 130mV (typ). The power-good RESET output
provides voltage monitoring for OUT1 and OUT2.
OUT1 and OUT2 use fast 2.2MHz PWM switching and
small external components. The high-voltage converter
(OUT1) enters skip mode automatically under light
Features
? 1.2A High-Efficiency 2.2MHz DC-DC Converter
3.7V to 28V Operating Supply Voltage
45V Load-Dump Protection
Output Voltage: 3.0V to 5.5V
? 600mA High-Efficiency 2.2MHz DC-DC Converter
2.7V to 5.5V Supply Voltage
Output Voltage: 1.0V to 3.9V
180° Out-of-Phase Operation
Forced-PWM and Auto-PWM Modes
? LDO Linear Regulators
OUT3: 1.0V to 4.15V at 300mA
OUT4: 1.0V to 4.15V at 300mA
Separate Inputs for Increased Efficiency
? Enable Input
? RESET Output Monitoring on OUT1 and OUT2
? Overtemperature and Short-Circuit Protection
? Available in
5mm x 5mm x 0.8mm, 20-Pin TQFN-EP
4.5mm x 6.5mm, 20-Pin TSSOP-EP
Ordering Information
loads to prevent an overvoltage condition from occur-
ring at the output. The low-voltage synchronous DC-DC
converter (OUT2) can operate in forced-PWM mode to
prevent any AM band interference or high-efficiency
PART
MAX16922ATP_ /V+*
MAX16922AUP_ /V+*
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
20 TQFN-EP**
20 TSSOP-EP**
auto-PWM mode.
The MAX16922 includes overtemperature shutdown
and overcurrent limiting. The device is designed to
operate from -40°C to +125°C ambient temperature.
*Insert the desired suffix letters (from the Selector Guide) into
the blank “_” to complete the part number.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
**EP = Exposed pad.
Typical Operating Circuit
V PV1
V OUT1
4.7 μ F
PV1
EN
PWM
OUTS2
LX2
PGND2
2.2 μ H
V OUT2
10 μ F
PV3
4.7 μ F
V OUT3
OUT3
MAX16922
PV2
BST
0.1 μ F
4.7 μ F
V OUT2
4.7 μ F
GND1
GND3
PV4
LX1
OUTS1
4.7 μ H
V OUT1
10 μ F
4.7 μ F
V OUT4
4.7 μ F
OUT4
GND
GND2
EP
LSUP
RESET
1 μ F
V OUT1
20k Ω
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5039; Rev 6; 6/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16922ATPE/V+ | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter 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 |
| MAX16922ATPE/V+T | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter 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 |
| MAX16922ATPF/V+ | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter 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 |
| MAX16922ATPF/V+T | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter 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 |
| MAX16922ATPG/V+ | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter 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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