参数资料
| 型号： | SC630AULTRT |
| 厂商： | Semtech |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP 3.3V 8MLPD |
| 标准包装： | 1 |
| 类型： | 切换式电容器（充电泵） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 2.95 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 300mA |
| 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： | 8-UFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-MLPD（2x2） |
| 其它名称： | SC630AULDKR |
SC630A
Applications Information (continued)
Over-Temperature Protection
Table 1 — Recommended Capacitors
The over-temperature circuit helps prevent the device
from overheating and experiencing a catastrophic failure.
When the junction temperature exceeds 65°C the device
is disabled. It remains disabled until the junction tempera-
ture drops below this threshold. Hysteresis is included
that prevents the device from re-enabling until the junc-
tion temperature is reduced by 20°C.
Capacitor Selection
The SC630A is designed to use low-ESR ceramic capacitors
for the input and output bypass capacitors as well as the
charge pump bucket capacitors. The value of input, output
and decoupling capacitors will vary with system require-
ments for ripple and output current. Performance as
shown in the Typical Characteristic section is expected
when using 2.2μF capacitors in the 0603( 608 metric) case
size with X5R dielectric for C IN , C OUT , C and C 2 capacitors
(refer to Table ).
Size Code
mil(mm)
0603( 608)
0402( 005)
0402( 005)
Value
μF
2.2
2.2
0.47
.0
Capacitor
C IN , C OUT
C , C 2
C IN , C OUT
C , C 2
C IN , C OUT
C , C 2
C IN , C OUT
Notes
This capacitor is required for
the full rated output current.
Typical output V PP < 00mV
in all charge pump modes.
This capacitor combina-
tion supports up to 200mA
output current with typical
output V PP < 00mV in all
charge pump modes.
This capacitor combina-
tion supports up to 00mA
output current with typical
output V PP < 00mV in all
charge pump modes.
This combination of capaci-
tors support up to 00mA
Consider the DC voltage characteristic of the capacitor
when choosing capacitors for an application. The value of
capacitance at the DC operating voltage may be consider-
0402( 005)
output current with typical
output V PP < 00mV in all
charge pump modes.
ably lower than the rated value. The following table lists
recommended capacitor values which have been chosen
to minimize the impact of this limitation.
0.
C , C 2
The 0. μF bucket capacitors
will increase output resis-
tance by 2.5? compared to
0.47μF and larger values.
The highest capacitance values in the smallest package
sizes tend to have poor DC voltage characteristics. The
highest value 0402 size capacitor retains as little as 35% of
NOTE: Use only X5R type capacitors, with a 6.3V rating or higher
its rated value at 5VDC. The same value chosen in the next
larger package size, 0603, will retain about 60% of its rated
value at 5VDC.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC630EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Fixed 3.3V High Output Charge Pump Buck/Boost Regulator |
| SC630JW | 功能描述:音频指示器及警报器 SLOW WARBLE, 6-30VDC MEDIUM RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole |
| SC630JWR | 功能描述:音频指示器及警报器 SLOW WARBLE, 6-30VDC MEDIUM RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole |
| SC630ULTRT | 制造商:Semtech Corporation 功能描述:Charge Pump STPUP/STPDN 3.3V 400mA 8-Pin MLPD-UT EP T/R |
| SC631 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Fixed 4.4V Output Charge Pump Regulator |
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