- 您现在的位置：买卖IC网 > PDF目录13564 > MAX1836EUT50+T (Maxim Integrated Products)IC REG BUCK 5V 125MA SOT23-6 PDF资料下载
参数资料
| 型号： | MAX1836EUT50+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 5V 125MA SOT23-6 |
| 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： | 5V |
| 输入电压： | 4.5 V ~ 24 V |
| 电流 - 输出： | 125mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 6-TDFN 裸露焊盘（3x3） |
24V Internal Switch, 100% Duty Cycle,
Step-Down Converters
INPUT
4.5V OR 24V
C IN
IN
SHDN
LX
D1
L1
OUTPUT
3.3V OR 5V
C OUT
V SENSE
OUT
R
Q
MAXIMUM
FB
S
Q
OFF-TIME
DELAY
TRIG
100mV
V SET
Q
TRIG
MAXIMUM
ON-TIME
DELAY
1.25V
GND
MAX1836
MAX1837
Figure 3. Functional Diagram
When the output voltage is too low, an error comparator
sets a flip-flop, which turns on the internal p-channel
MOSFET and begins a switching cycle (Figure 3). As
shown in Figure 4, the inductor current ramps up linear-
ly, charging the output capacitor and servicing the
load. The MOSFET turns off when the current limit is
reached, or when the maximum on-time is exceeded
10V
0
A
while the output voltage is in regulation. Otherwise, the
MOSFET remains on, allowing a duty cycle up to 100%
to ensure the lowest possible dropout voltage. Once
the MOSFET turns off, the flip-flop resets, diode D1
turns on, and the current through the inductor ramps
back down, transferring the stored energy to the output
capacitor and load. The MOSFET remains off until the
0.5μs minimum off-time expires and the inductor cur-
rent ramps down to zero, and the output voltage drops
back below the set point.
3.3V
500mA
0
4 μ s/div
CIRCUIT OF FIGURE 2, V IN = 12V
A. V LX , 5V/div
B. V OUT = 3.3V, 20mV/div, 200mA LOAD
C. INDUCTOR CURRENT, 500mA/div
B
C
Figure 4. Discontinuous-Conduction Operation
8
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| 16ZLK1500MT810X25 | CAP ALUM 1500UF 16V 20% RADIAL |
| VI-244-EX-F1 | CONVERTER MOD DC/DC 48V 75W |
| 63YXF330MEFCG412.5X20 | CAP ALUM 330UF 63V 20% RADIAL |
| MAX6761TALAD0+T | IC DETECT VOLT WINDOW 8-TDFN |
| MAX1836ETT50+T | IC REG BUCK ADJ 125MA 6TDFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1837ESA33 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1837ETT33+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP DOWN 6TDFN EP - Rail/Tube |
| MAX1837ETT33+T | 功能描述:直流/直流开关转换器 24V 100% Duty Cycle 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 |
| MAX1837ETT50+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP DOWN 6TDFN EP - Rail/Tube |
| MAX1837ETT50+T | 功能描述:直流/直流开关转换器 24V 100% Duty Cycle 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 |
发布紧急采购，3分钟左右您将得到回复。