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参数资料
| 型号： | DC1227A |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR LTC3534 |
| 设计资源： | DC1227A Design Files DC1227A Schematic |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步升/步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 5V |
| 电流 - 输出： | 500mA（最小值） |
| 输入电压： | 3.6 ~ 7 V |
| 稳压器拓扑结构： | 降压-升压 |
| 频率 - 开关： | 1MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTC3534 |
LTC3534
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V IN = V OUT = 5V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Start-Up Voltage
Input Operating Range
Output Voltage Adjust Range
l
l
l
2.4
1.8
2.2
2.4
7
7
V
V
V
Feedback Voltage
Feedback Input Current
V IN Quiescent Current – Burst Mode
Operation
V IN Quiescent Current – Shutdown
V IN Quiescent Current – Active
Input Current Limit
(Note 4)
V FB = Measured Feedback Voltage (Note 4)
V FB = 1.2V, V PWM = 0V (Note 5)
V RUN/SS = 0V, Not Including Switch Leakage, V OUT = 0V
V FB = 1.2V, V PWM = 5V (Note 5)
V PWM = 5V
l
l
0.975
1
1
1
25
0.1
420
1.8
1.015
50
50
1
700
V
nA
μA
μA
μA
A
Reverse Current Limit
Burst Current Limit
V PWM = 5V
V PWM = 0V
500
400
mA
mA
NMOS Switches Leakage
PMOS Switches Leakage
PMOS Switches On-Resistance
NMOS B Switch On-Resistance
NMOS C Switch On-Resistance
Switches B and C
Switches A and D
Switches A and D
Switch B
Switch C
0.1
0.1
260
275
215
7
10
μA
μA
mΩ
mΩ
mΩ
Maximum Duty Cycle
Minimum Duty Cycle
Boost (% Switch C On)
Buck (% Switch A On)
l
l
l
75
100
85
0
%
%
%
Frequency
Error Amp AV OL
(Note 4)
l
0.80
1
74
1.15
MHz
dB
Error Amp Source Current
Error Amp Sink Current
–15
225
μA
μA
RUN/SS Threshold
RUN/SS Input Current – Shutdown
RUN/SS Input Current – Active
PWM Threshold
PWM Input Current
V RUN/SS = 400mV; IC is Shut Down
V RUN/SS = 5V; IC is Enabled
Measured at PWM Pin; Voltage at which Burst Mode Operation is
Disabled (PWMing Enabled)
V PWM = 5V
l
0.4
0.4
1
0.02
0.28
1
1.25
1.4
1
1
1.4
2.5
V
μA
μA
V
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3534E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: 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 result in device degradation or failure.
Note 4: The IC is tested in a feedback loop to make this measurement.
Note 5: Current Measurements are performed when the outputs are not
switching.
3534fb
For more information www.linear.com/LTC3534
3
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| DC1-2-28/12A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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| DC1-2-28/5A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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