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参数资料
| 型号： | MAX16903SATB33/V+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 1A 10TDFN |
| 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： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 3.5 V ~ 28 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2.1MHz |
| 电流 - 输出： | 1A |
| 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： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
MAX16903
2.1MHz, High-Voltage, 1A Mini-Buck Converter
Pin Description (continued)
TDFN
5
6
PIN
TSSOP
8
11
NAME
OUTS
PGOOD
FUNCTION
Buck Regulator Voltage-Sense Input. Bypass OUTS to PGND with a 10μF or larger X7R
ceramic capacitor.
Open-Drain Power-Good Output
Sync Input. SYNC allows the device to synchronize to other supplies. When connected to
7
12
SYNC
GND or unconnected, skip mode is enabled under light loads. When connected to a clock
source or BIAS, forced PWM mode is enabled.
8
9
10
13
14
15
9, 10, 16
BIAS
GND
EN
N.C.
EP
+5V Internal Logic Supply. Connect a 2.2μF ceramic capacitor from BIAS to GND.
Analog Ground
Enable Input. EN is high-voltage compatible. Drive EN HIGH for normal operation.
No Connection. Not internally connected.
Exposed Pad. Connect EP to PGND. Do not use EP as the only ground connection.
Functional Diagram
SYNC
REF
EN
HVLDO
BANDGAP
OSC
BST
BIAS
CURRENT-SENSE
CLK
HSD
SUP
SOFT-START
AND
OUTS
EAMP
SLOPE COMPENSATION
PWM
LOGIC
CONTROL
BIAS
LSD
LX
V GOOD
COMP
MAX16903
PGND
PGOOD
Detailed Description
The MAX16903 is a small, current-mode buck converter
that features synchronous rectification and requires no
external compensation network. The MAX16903 is
designed for 1A output current. The MAX16903 can stay
in dropout by running at 97% duty cycle. It provides an
Maxim Integrated
GND
accurate output voltage within the input range of +6.5V
to +18V. Voltage quality can be monitored by observing
the PGOOD signal. The MAX16903 operates at 2.1MHz
(typ) frequency, which allows for small external compo-
nents, reduced output ripple, and guarantees no AM
band interference.
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16903SATB50/V+T | 功能描述:直流/直流开关转换器 2.1MHz Mini-Buck 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 |
| MAX16903SATB50+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX16903SATB50+T | 制造商:Maxim Integrated Products 功能描述:2.1MHZ, HIGH-VOLTAGE, 1A MINI-BUCK CONVERTER - Tape and Reel |
| MAX16903SAUE33/V+ | 功能描述:直流/直流开关转换器 2.1MHz Mini-Buck 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 |
| MAX16903SAUE33/V+T | 功能描述:直流/直流开关转换器 2.1MHz Mini-Buck 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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