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参数资料
| 型号： | MAX1684EEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 3.3V/ADJ 16QSOP |
| 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： | 3.3V，1.25 V ~ 14 V |
| 输入电压： | 2.7 V ~ 14 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 300kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QSOP |
Low-Noise, 14V Input, 1A, PWM
Step-Down Converters
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T A = +25°C, unless otherwise noted.)
V IN
5V/div
0V
V OUT
100mV/div
LINE-TRANSIENT RESPONSE
MAX1684/85 toc19
2ms/div
MAX1684, I LOAD = 100mA, V IN = 5V TO 10V,
SYNC/PWM = 3.3V
V SHDN
5V/div
I IN
50mA/div
STARTUP CURRENT
MAX1684/85 toc20
10ms/div
MAX1684, I LOAD = 100mA, V OUT = 3.3V,
V IN = 5V, C ILIM/SS = 0.1 μ F, SYNC/PWM = 3.3V
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13, 14
15
16
NAME
CVH
AIN
IN
CVL
AGND
REF
FB
CC
SYNC/PWM
ILIM/SS
STBY
BOOT
LX
SHDN
PGND
FUNCTION
High-Side MOSFET Gate Bias. Bias voltage for P-channel switch. Bypass to IN with a 0.1μF capacitor.
Analog Supply Voltage Input. Connect to IN with a 0.2in metal trace. Bypass to PGND with a 0.1μF
capacitor.
Supply Voltage Input
Logic Supply Voltage Output and IC Logic Supply. Sources 5mA for external loads. Bypass to AGND
with 1μF capacitor.
Analog Ground
Reference Output. 1.25V reference output supplies 10μA for external loads. Bypass to AGND with 0.1μF
capacitor.
Dual-Mode Feedback Input. Connect FB to V OUT for 1.25V output. Connect to an external resistor divider
to adjust the output voltage. Connect to AGND to set output voltage to 3.3V.
Integrator Capacitor Connection. Connect a 0.01μF capacitor to AGND.
SYNC/PWM Input:
For synchronized-PWM operation, drive with TTL level, 50% square wave.
Connect to CVL for PWM mode.
Connect to AGND for normal mode.
Current-Limit Adjust/Soft-Start Input. See the Current Limit and Soft-Start section.
Standby Control Input. Connect to CVL for normal operation. Connect to AGND for low-power mode
(Table 1). This pin overrides SYNC/PWM setting.
Bootstrap Input. Connection for the bootstrap switch and internal feedback path. Connect BOOT to V OUT
for V OUT < 5.5V. Connect BOOT to AGND for V OUT > 5.5V.
Inductor Connection. Drain for internal P-channel MOSFETs. Connect inductor from LX to OUT.
Active-Low Shutdown Input. Connect to ground for shutdown. SHDN can withstand the input voltage.
Power Ground
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1685EEE | 功能描述:直流/直流开关转换器 14V 1A PWM Step-Down 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 |
| MAX1685EEE+ | 功能描述:直流/直流开关转换器 14V 1A PWM Step-Down 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 |
| MAX1685EEE+T | 功能描述:直流/直流开关转换器 14V 1A PWM Step-Down 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 |
| MAX1685EEE-T | 功能描述:直流/直流开关转换器 14V 1A PWM Step-Down 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 |
| MAX1685EVKIT | 功能描述:电源管理IC开发工具 Evaluation Kit for the MAX1684 MAX1685 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 |
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