参数资料
| 型号： | SC195ULTRT |
| 厂商： | Semtech |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.5A 8MLPQ |
| 特色产品： | SC195 Buck Regulator |
| 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 ~ 3.3 V |
| 输入电压： | 2.9 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 3.5MHz |
| 电流 - 输出： | 500mA |
| 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： | 8-MLPQ |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-MLPQ-UT（1.5x1.5） |
| 产品目录页面： | 1357 (CN2011-ZH PDF) |
| 其它名称： | SC195ULDKR |
SC195
Absolute Maximum Ratings
IN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
LX Voltage (V). . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.0 to V IN +0.5
Other Pins (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3 to V IN + 0.3
Output Short Circuit to GND . . . . . . . . . . . . . . . . Continuous
ESD Protection Level (1) (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5
Recommended Operating Conditions
Input Voltage Range (V) . . . . . . . . . . . . . . . . . . . . . +2.9 to +5.5
Operating Temperature Range (°C) . . . . . . . . . . -40 to +85
Thermal Information
Thermal Resistance, Junction to Ambient (2) (°C/W). . . . 116
Junction Temperature Range (°C) . . . . . . . . . . . -40 to +150
Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
NOTES:
(1) Tested according to JEDEC standard JESD22-A114.
(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB per JESD51 standards.
Electrical Characteristics
Unless otherwise specified: V IN = 3.6V, C IN = 4.7μF, C OUT =10μF, L X =1μH, V OUT =1.8V, T J(MAX) =125°C, T A = -40 to +85 °C. Typical values are T A =+25 °C
Parameter
Output Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
Symbol
V OUT
V OUT_TOL
ΔV LINEREG
ΔV LOADREG
Condition
I OUT = 200mA
PSAVE mode
2.9 ≤ V IN ≤ 5.5V, I OUT = 200mA
200mA ≤ I OUT ≤ 500mA
Min
0.8
-2.0
Typ
1.5
0.3
-1
Max
3.3 (1)
2.0
Units
V
%
%/V
%/A
Output Current Capability
I OUT
500
mA
Current Limit Threshold
Foldback Current Limit
I LIMIT
I FB_LIM
I LOAD > I LIMIT
800
150
1300
mA
mA
Under-Voltage Lockout
Quiescent Current
Shutdown Current
LX Leakage Current
High Side Switch Resistance (2)
Low Side Switch Resistance (3)
V UVLO
I Q
I SD
I LX
R DSON_P
R DSON_N
Rising V IN
Hysteresis
No switching, I OUT = 0mA
V CTL 0-3 = 0V
Into LX pin
I OUT = 100mA
I OUT = 100mA
200
38
0.1
0.1
250
350
2.9
60
1.0
1.0
V
mV
μA
μA
μA
mΩ
3
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