参数资料
| 型号： | SC560CULTRT |
| 厂商： | Semtech |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .3A 8-MLPQ |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.2 V ~ 5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.1V @ 200mA |
| 稳压器数量： | 2 |
| 电流 - 输出： | 300mA |
| 电流 - 限制（最小）： | 350mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-UFQFN |
| 供应商设备封装： | 8-MLPQ-UT（1.5x1.5） |
| 包装： | 标准包装 |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC560CULDKR |
SC560
Applications Information (continued)
The values of the resistors in the voltage divider network
can be calculated using the equation:
Short-Circuit Protection
Each output has short-circuit protection. If the output
current exceeds the current limit, the output voltage will
V OUT
V REF
R 1 R 2
R 2
drop and the output current will be limited until the load
current returns to a specified level. If a short-circuit occurs
on the output of LDOA, the output of LDOB will also be
where V REF = 1V. The value of R2 should be 100kΩ or
less to ensure noise performance and stability. Values
significantly less than 100kΩ will impact the quiescent
current.
Protection Features
The SC560 family provides the following protection
features to ensure that no damage is incurred in the
event of a fault condition:
? Under-Voltage Lockout
? Over-Temperature Protection
? Short-Circuit Protection
Under-Voltage Lockout
The Under-Voltage Lockout (UVLO) circuit protects the
device from operating in an unknown state if the input
voltage supply is too low.
disabled until the fault is removed and the load current
returns to a specified level.
Component Selection
A capacitance of 1μF or larger on each output is
recommended to ensure stability. Ceramic capacitors
of type X5R or X7R should be used because of their
low ESR and stable temperature coeffi cients. It is also
recommended that the input be bypassed with a 2.2μF,
low ESR X5R or X7R capacitor to minimize noise and
improve transient response. Note: Tantalum and Y5V
capacitors are not recommended.
The BYP pin on the SC560D and the fixed output versions
must have a minimum of 22nF connected to ground to
meet all noise-sensitive requirements. Increasing the
capacitance to 100nF will further improve PSRR and
output noise.
When the V IN drops below the UVLO threshold, the LDOs
are disabled and PGOOD is held low (SC560C and fixed
output variants only). When V IN is increased above the
hysteresis level, the LDOs are re-enabled into their
previous states, provided EN has remained high. When
powering up with V IN below the UVLO threshold, the
LDOs remain disabled and PGOOD is held low (SC560C
and fixed output variants only).
Over-Temperature Protection
An internal Over-Temperature (OT) protection circuit is
provided that monitors the internal junction temperature.
When the temperature exceeds the OT threshold as
defined in the Electrical Characteristics section, the OT
protection disables both LDO outputs and holds the
PGOOD signal low. When the junction temperature drops
below the hysteresis level, the LDOs are re-enabled into
their previous states and PGOOD transitions high after a
200ms delay, provided EN has remained high (SC560C
and fixed output variants only).
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC560DULTRT | 功能描述:IC REG LDO 2.8V/1.8V .3A 8-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| SC560EULTRT | 功能描述:IC REG LDO 2.85V .3A 8-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:8V 输入电压:10.5 V ~ 23 V 电压 - 压降（标准）:1.7V @ 40mA 稳压器数量:1 电流 - 输出:100mA（最小值） 电流 - 限制（最小）:- 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:剪切带 (CT) 产品目录页面:1075 (CN2011-ZH PDF) 其它名称:296-24390-1 |
| SC560FULTRT | 功能描述:IC REG LDO 2.5V/1.8V .3A 8-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| SC560GULTRT | 功能描述:IC REG LDO 2.8V/1.5V .3A 8-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| SC560HULTRT | 功能描述:IC REG LDO 3.3V .3A 8-MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件 |
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