参数资料
| 型号： | SC2440TETRT |
| 厂商： | Semtech |
| 文件页数： | 2/26页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 2A DL 16TSSOP |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出数： | 2 |
| 输入电压： | 2.8 V ~ 20 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.4MHz |
| 电流 - 输出： | 2A |
| 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： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 16-TSSOP |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC2440TEDKR |
SC2440
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
Parameter
Input Voltage
Boost Pin
Boost Pin Above SW
PGOOD Pin Voltage
SS Pins
FB Pins
SYNC Pin Current
SW Voltage
SW Transient Spikes (<10ns Duration)
Operating Ambient Temperature Range
Thermal Resistance Junction to Ambient
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering)10 sec
Symbol
V IN
V BST
V BST -V SW
V PGOOD
V SS
V FB
I SYNC
V SW
V SW
T A
θ JA
T J
T STG
T LEAD
Max
-0.3 to 20
40
20
V IN
3
-0.3 to V IN
5
-0.6 to V IN
V IN +1.5
-2.5
-40 to 85
45
150
-65 to +150
300
Units
V
V
V
V
V
V
mA
V
V
°C
°C/W
°C
°C
°C
Electrical Characteristics
Unless specified: -40°C < T A < 85°C, -40°C < T J < 105°C, R OSC = 12.1K ? , V SYNC = 0, V IN = 5V, V BOOST = 8V
Parameter
V IN Start Voltage
Conditions
Min
2.45
Typ
2.62
Max
2.78
Units
V
V IN Start Hysteresis
75
mV
Quiescent Current
Shutdown Current
Feedback Voltage
Feedback Voltage Line
Not switching, PGOOD Open
V SS1 = V SS2 = 0V, PGOOD Open
V IN = 3V to 20V
0.980
3.3
38
1.000
0.005
4.3
60
1.020
mA
μA
V
%/V
Regulation
FB Pin Input Bias Current
Error Amplifier Transconductance
Error Amplifier Open-loop Gain
COMP Source Current
COMP Sink Current
V FB = 1V, V COMP = 1.5V
V FB = 0.8V, V COMP = 1.5V
V FB = 1.2V, V COMP = 1.5V
-15
280
53
20
20
-30
nA
μ ? -1
dB
μA
μA
COMP Pin to Switch Current Gain
? 2005 Semtech Corp.
2
5.7
A/V
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
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| SC2441 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441A | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441A_09 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441AEVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter |
| SC2441ATETRT | 制造商:Semtech Corporation 功能描述: |
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