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参数资料
| 型号： | MIC2177-3.3YWM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 3.3V 20SOIC |
| 标准包装： | 1 |
| 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： | 4.5 V ~ 16.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz |
| 电流 - 输出： | 2.5A |
| 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： | 20-SOIC（0.295"，7.50mm 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 20-SOIC（宽型） |
| 产品目录页面： | 1092 (CN2011-ZH PDF) |
| 其它名称： | 576-1542-6 |
Micrel, Inc.
the MIC2177. A good design takes into consideration
component placement and routing of power traces.
The first thing to consider is the locations of the input
capacitor, inductor, output diode, and output capacitor.
The input capacitor must be placed very close to the V IN
pin, the inductor and output diode very close to the SW
pin, and the output capacitor near the inductor. These
components pass large high-frequency current pulses,
so they must use short, wide power traces. In addition,
their ground pins and PGND are connected to a ground
plane that is nearest the power supply ground bus.
V IN
4.5V to 16.5V
MIC2177
The feedback resistors, RC compensation network, and
BIAS pin bypass capacitor should be located near their
respective pins. To prevent ground bounce, their ground
traces and SGND should not be in the path of switching
currents returning to the power supply ground bus.
SGND and PGND should be tied together by a ground
plane that extends under the MIC2177.
VIN
OUT
EN
SW
SYNC MIC2177
PGND
AUTO
FB
R4
C4
C3
V OUT
D1
MBRS130L
Bill of Materials
C1
22μF
35V
C5
0.01
μF
U1 1,2,9
20
18
11
COMP SGND BIAS
R4
10k
6.8nF 0.01μF
13 14–17 19
10
3,8
4–7
12
10k
U1 Micrel MIC2177-3.3BWM
C1 AVX
C2 AVX
C3 Z5UorX7R Ceramic Dielectric Material
C4 X7RorNP0 Ceramic Dielectric Material
D1 Motorola MBRS130LT3
L1 Coiltronics CTX50-4P, DCR = 0.097
L1 Coilcraft
L1 Bi HM77-11003, DCR = 0.073
L1, 50μH
3.3V/1A
C2
100μF
10V
801 17 Ave.
3102 North 56 St.
Inductors
Coilcraft
1102 Silver Lake Rd.
Cary, IL 60013
Tel: (708) 639-2361
Fax: (708) 639-1469
Coiltronics
6000 Park of Commerce Blvd.
Boca Raton, FL 33487
Tel: (407) 241-7876
Fax: (407) 241-9339
Bi Technologies
4200 Bonita Place
Fullerton, CA 92835
Tel: (714) 447-2345
Fax: (714) 447-2500
Capacitors
AVX
th
Myrtle Beach, SC 29577
Tel: (803) 448-9411
Fax: (803) 448-1973
Sanyo Video Components Corp.
2001 Sanyo Ave.
San Diego, CA 92173
Tel: (619) 661-6835
Fax: (619) 661-1055
Sprague Electric
60005 Lower Main St.
Sanford, ME 04073
Tel: (207) 324-4140
Diodes
General Instruments (GI)
10 Melville Park Rd.
Melville, NY 11747
Tel: (516) 847-3222
Fax: (516) 847-3150
International Rectifier Corp.
233 Kansas St.
El Segundo, CA 90245
Tel: (310) 322-3331
Fax: (310) 322-3332
Motorola, Inc.
MS 56-126
th
Phoenix, AZ 85018
Tel: (602) 244-3576
Transistors
Siliconix
2201 Laurelwood Rd.
Santa Clara, CA 96056
Tel: (800) 554-5565
Fax: (602) 244-4015
April 2008
14
M9999-042108
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2177-5.0BWM | 功能描述:直流/直流开关调节器 2.5A 200kHz Synchronous Switcher 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 |
| MIC2177-5.0BWM TR | 功能描述:直流/直流开关调节器 2.5A 200kHz Synchronous Switcher 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 |
| MIC2177-5.0BWMTR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MIC2177-5.0YWM | 功能描述:直流/直流开关调节器 2.5A 200kHz Synchronous Switcher 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 |
| MIC2177-5.0YWM TR | 功能描述:直流/直流开关调节器 2.5A 200kHz Synchronous Switcher 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 |
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