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参数资料
| 型号： | LTC3252EDE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SWITCHED CAP 12DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），切换电容（充电泵） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.9 V ~ 1.6 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 1MHz ~ 1.6MHz |
| 电流 - 输出： | 250mA |
| 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： | 12-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 12-DFN（4x3） |
LTC3252
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3252EDE is guaranteed to meet specified performance
from 0 ° C to 70 ° C. Specifications over the – 40 ° C and 85 ° C operating
temperature range are assured by design characterization and correlation
with statistical process control.
Note 3: Based on long-term current density limitations.
Note 4: Minimum operating voltage required for regulation is:
V IN > 2 ? (V OUT(MIN) + R OL ? I OUT )
Note 5: Output not in regulation; R OL = (V IN /2 – V OUT )/I OUT .
Note 6: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125 ° C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
TYPICAL PERFOR A CE CHARACTERISTICS
No Load Supply Current vs Supply
No Load Supply Current vs Supply
60
Voltage (One Output Enabled)
100
90
Voltage (Both Outputs Enabled)
0.82
FB Voltage vs Load Current
V IN = 3.6V
50
40
85 ° C
25 ° C
80
70
85 ° C
25 ° C
0.81
0.80
60
25 ° C
30
–45 ° C
50
–40 ° C
0.79
–40 ° C
40
20
10
30
20
0.78
0.77
85 ° C
10
0
2.7
3.2
3.7
4.2
4.7
5.2
0
2.7
3.2
3.7
4.2
4.7
5.2
0.76
0
50
100
150
200
250
V IN (V)
3252 G01
EN1/EN2 Input Threshold Voltage
vs Supply Voltage
V IN (V)
3252 G02
1.5V Output Voltage vs Supply
Voltage
I OUT (mA)
3252 G03
1.5V Output Efficiency vs Output
Current
1.2
1.1
1.0
25 ° C
1.60
1.58
1.56
T A = 25 ° C
100
80
T A = 25 ° C
0.9
–40 ° C
1.54
1.52
I OUT = 0mA
I OUT = 50mA
60
0.8
1.50
0.7
0.6
85 ° C
1.48
1.46
I OUT = 250mA
40
V IN = 3.1V
V IN = 3.3V
V IN = 3.6V
1.44
20
V IN = 4V
0.5
1.42
V IN = 5V
0.4
2.7
3.2
3.7
4.2
4.7
5.2
1.40
3
3.5
4
4.5
5
5.5
0
0.1
1
10
100
1000
V IN (V)
3252 G04
V IN (V)
3252 G05
I OUT (mA)
3252 G06
3252f
3
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相关代理商/技术参数 |
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| LTC3255EDD#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-DFN 制造商:Linear Technology 功能描述:IC, STEP DWN CHARGE PUMP, 500KHZ, DFN-10 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch |
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| LTC3255EMSE#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-MSOP 制造商:Linear Technology 功能描述:IC, STEP DWN CHARGE PUMP, 500KHZ, MSOP10 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK, ADJ, 500KHZ, MSOP-10, Primary Input Voltage:48V, No. of Outputs:1, Output Current:50mA, No. of Pins:10, Operating Temperature Min:-40C, Operating Temperature Max:125C, Package / Case:10-MSOP , RoHS Compliant: Yes |
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| LTC3255HDD#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-DFN 制造商:Linear Technology 功能描述:IC, STEP DWN CHARGE PUMP, 500KHZ, DFN-10 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK, ADJ, 500KHZ, DFN-10, Primary Input Voltage:48V, No. of Outputs:1, Output Current:50mA, No. of Pins:10, Operating Temperature Min:-40C, Operating Temperature Max:150C, Package / Case:10-DFN , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch |
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