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参数资料
| 型号： | MAX724CCK |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/13页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ TO220-5 |
| 标准包装： | 50 |
| 类型： | 降压（降压），升压（升压），反相，回扫 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 35 V |
| 输入电压： | 8 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz |
| 电流 - 输出： | 5A |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-220-5 |
| 包装： | 管件 |
| 供应商设备封装： | TO-220-5 |
5A/2A Step-Down, PWM,
Switch-Mode DC-DC Regulators
In DCM, ringing occurs at V SW in the latter part of the
switch off-cycle. This is due to the inductor resonating
with the parallel capacitance of the catch diode and the
V SW node. This ringing is harmless and does not
appear at the output. Furthermore, attempts to damp
this ringing by adding circuitry will reduce efficiency
and are not advised. No off-state ringing occurs in
CCM because the diode always conducts during the
_______________Component Selection
Table 1 lists component suppliers for inductors, capaci-
tors, and diodes appropriate for use with the
MAX724/MAX726. Be sure to observe specified ratings
for all components.
Table 1. Component Suppliers
Surface-Mount Components (for designs typically below 2A)
switch-off time and consequently damps any reso-
nance at V SW .
V IN
Inductors:
Capacitors:
Sumida Electric - CDR125 Series
USA: Phone (708) 956-0666
Japan: Phone 81-3607-5111
FAX 81-3607-5144
Coiltronics - CTX series
USA: Phone (305) 781-8900
FAX (305) 782-4163
Matsuo - 267 series
2.21V
REF
INTERNAL
BIAS
100kHz
OSCILLATOR
CURRENT-LIMIT
COMPARATOR
USA: Phone (714) 969-2491
FAX (714) 960-6492
Japan: Phone 81-6337-6450
ERROR
AMPLIFIER
PWM
LOGIC
Sprague - 595D series
USA: Phone (603) 224-1961
FAX (603) 224-1430
FB
V C
CONTROL
SWITCH
Diodes:
Motorola - MBRS series
USA: Phone (602) 244-5303
FAX (602) 244-4015
Nihon - NSQ series
USA: Phone (805) 867-2555
FAX (805) 867-2556
MAX724
Japan: Phone 81-3-3494-7411
FAX 81-3-3494-7414
Through-Hole Components
GND
V SW
Inductors:
Sumida - RCH-110 series
(see above for phone number)
Cadell-Burns - 7070, 7300, 6860, and 7200 series
Figure 1. MAX724 Block Diagram
USA: Phone (516) 746-2310
FAX (516) 742-2416
Renco - various series
USA: Phone (516) 586-5566
FAX (516) 586-5562
Coiltronics - various series
INPUT
8V TO 40V
220 μ F
R3
2.7k
C2
0.01 μ F
V IN
V C
MAX724
MAX726
GND
V SW
FB
L
50 μ H (MAX724)
100 μ H (MAX726)
D
MBR745
OUTPUT
5V at 5A (MAX724)
5V at 2A (MAX726)
R1
2.8k
C1
470 μ F
R2
2.2k
Capacitors:
(see above for phone number)
Nichicon - PL series low-ESR electrolytics
USA: Phone (708) 843-7500
FAX (708) 843-2798
Japan: Phone 81-7-5231-8461
FAX 81-7-5256-4158
United Chemi-Con - LXF series
USA: Phone (714) 255-9500
FAX (714) 255-9400
Sanyo - OS-CON low-ESR organic semiconductor
USA: Phone (619) 661-6835
FAX (619) 661-1055
Japan: Phone 81-7-2070-6306
FAX 81-7-2070-1174
Figure 2. Basic Step-Down Converter
Diodes:
General Purpose - 1N5820-1N5825
Motorola - MBR and MBRD series
(see above for phone number)
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX724CCM | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Current-Mode SMPS Controller |
| MAX724CKS | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Current-Mode SMPS Controller |
| MAX724ECK | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX724ECK-SL | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX724ECM | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Current-Mode SMPS Controller |
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