参数资料
| 型号： | SC196ULTRT |
| 厂商： | Semtech |
| 文件页数： | 10/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.5A 10MLPD |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 1.5A |
| 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： | 10-UFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-MLPD-UT（3x3） |
| 产品目录页面： | 1357 (CN2011-ZH PDF) |
| 其它名称： | SC196ULDKR |
SC196
POWER MANAGEMENT
Applications Information (Cont.)
and voltage characteristics. Y5V capacitors should not
be used as their temperature coef ? cients make them
unsuitable for this application. Attention should be paid to
the DC voltage characteristics of the ceramic capacitors
to be used for both input and output. Parts with different
case sizes can vary signi ? cantly. For example a 22 μ F
X5R 0805 capacitor with 3.6V DC applied could have a
capacitance as low as 12 μ F. When a 1206 size part is
used, the capacitance is approximately 20 μ F. Table 3 lists
the manufacturers of recommended capacitor options.
Table 3 — Recommended Capacitors
PRELIMINARY
Manufacturer/Part #
Murata
GRM21BR60J226ME39L
Value
( μ F)
22
Rated
Voltage
(VDC)
6.3
Temperature
Characteristic
X5R
Case Size
0805
Murata
GRM422X5R226
22
16
X5R
1210
K16H533
Murata
GRM188R60J106
10
6.3
X5R
0603
MKE19
TDK
C2012X5R0J106K
10
6.3
X5R
0603
Note: Where PSAVE operation is required, 22 μ F must be used for C OUT .
Feed-Forward Compensation Capacitor
A small 10pf compensation capacitor, C FB1 is required
to ensure correct operation. This capacitor should
be connected directly across feedback resistor R FB1 .
Capacitors with X7R or X5R ceramic dielectric are
strongly recommended for their superior temperature
characteristics.
? 2007 Semtech Corp.
10
www.semtech.com
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| SC197 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:3.5MHz, 500mA Synchronous Dual Step-Down DC-DC Regulator |
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| SC197ULTRT | 制造商:Semtech Corporation 功能描述:Conv DC-DC Single Step Down 2.9V to 5.5V 18-Pin MLPQ-UT EP T/R 制造商:Semtech Corporation 功能描述:IC DC-DC CONV 3.5MHz MLPQ-18 制造商:Semtech Corporation 功能描述:SC197 Series 0.8 V 500 mA Dual Channel Step-Down Regulator - MLPQ-UT-18 制造商:Semtech Corporation 功能描述:IC, DC-DC CONV, 3.5MHz, MLPQ-18; Primary Input Voltage:5.5V; No. of Outputs:1; Output Voltage:3.3V; Output Current:500mA; No. of Pins:18; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:18-MLPQ |
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