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参数资料
| 型号： | MAX16975AAEE/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 5V/ADJ 16QSOP |
| 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 |
| 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： | 220kHz ~ 1MHz |
| 电流 - 输出： | 1.2A |
| 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-LSSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QSOP 裸露焊盘 |
MAX16975
28V, 1.2A Automotive Step-Down Converter
with Low Operating Current
General Description
The MAX16975 is a 1.2A current-mode step-down con-
verter with an integrated high-side switch. The device
operates with input voltages from 3.5V to 28V while using
only 45 F A quiescent current at no load. The switching
frequency is adjustable from 220kHz to 1.0MHz by using
an external resistor, and can be synchronized to an exter-
nal clock. The device’s output voltage is pin-selectable to
a fixed 5V or adjustable from 1V to 10V using external
resistors. The wide input voltage range makes the device
ideal for automotive and industrial applications.
The device operates in skip mode for reduced current
consumption in light-load conditions. An adjustable
reset threshold helps keep microcontrollers alive down
to the lowest specified input voltage. Protection features
include cycle-by-cycle current limit, soft-start, overvolt-
age, and thermal shutdown with automatic recovery.
The device also features a power-good monitor to ease
power-supply sequencing.
The device is available in 16-pin QSOP and thermally
enhanced QSOP-EP packages. It operates over the
-40 ° C to +125 ° C automotive temperature range.
Features
S Wide 3.5V to 28V Input Voltage Range
S 42V Input Transient Tolerance
S 5V Fixed or 1V to 10V Adjustable Output Voltage
S Integrated 1.2A High-Side Switch
S 220kHz to 1.0MHz Adjustable Switching Frequency
S Frequency Synchronization Input
S Internal Boost Diode
S 45μA Skip-Mode Operating Current
S Less than 10μA Shutdown Current
S Adjustable Power-Good Output Level and Timing
S 3.3V Logic Level to 42V Compatible Enable Input
S Current-Limit, Thermal Shutdown, and
Overvoltage Protection
S -40°C to +125°C Automotive Temperature Range
Applications
Automotive
Industrial
Ordering Information appears at end of data sheet.
Typical Application Circuit
3.5V TO 28V
FSYNC
FB
C IN1
47μF
C COMP1
5600pF
R COMP
12k I
C IN2
4.7μF
C COMP2
OPEN
C IN3
0.1μF
R FOSC
61.9k I
SUP SUPSW
COMP
MAX16975 RESETI
FOSC
EN BST
LX
OUT
C BST
0.1μF
V OUT
D1
V BIA S
R RES
10k I
L1
10μH
V OUT = 1.25V AT
1.2A AT 400kHz
R FB1 C OUT1
25k I 47μF
R FB2
100k I
C OUT2
47μF
C BIAS
1μF
C CRES
1nF
BIAS
CRES
GND
RES
PLACE C IN3 (0.1μF) RIGHT NEXT TO SUP.
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX16975.related
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5673; Rev 1; 10/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX16975BAEE/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 |
| MAX16975BAEE/V+CG | 制造商:Maxim Integrated Products 功能描述:28V, 1.2A AUTOMOTIVE STEP-DOWN CONVERTER WITH LOW OPERATING - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC REG BUCK SYNC 5V/ADJ 16QSOP |
| MAX16975BAEE/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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