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参数资料
| 型号： | LTC3425EUH#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 5A 32QFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.4 V ~ 5.25 V |
| 输入电压： | 0.5 V ~ 4.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 100kHz ~ 2MHz |
| 电流 - 输出： | 5A |
| 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： | 32-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
LTC3425
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 1.2V, V OUT = 3.3V, R T = 15k, unless otherwise noted.
PARAMETER
PMOS Turn-Off Current
PMOS Reverse Current Limit
Max Duty Cycle
Min Duty Cycle
CONDITIONS
CCM < 0.4V
CCM > 1.4V
q
q
MIN
83
TYP
–80
0.6
90
MAX
97
0
UNITS
mA
A
%
%
Frequency Accuracy
SHDN Input High
R T = 15k
V OUT = 0V (Initial Start-Up)
q
q
0.8
1
1
1.2
MHz
V
SHDN Input Low
V OUT > 2.4V
q
q
0.65
0.25
V
V
SHDN Input Current
V SHDN = 5V or 0V
V SHDN = 2V
0.01
–0.50
1
μ A
μ A
REFEN, CCM Input High
REFEN, CCM Input Low
q
q
1.4
0.4
V
V
REFEN, Input Current
V REFEN = 5V
0.01
1
μ A
SYNCIN Input High
SYNCIN Input Low
(Note 7)
(Note 7)
q
q
2.5
0.5
V
V
SYNCIN Input Current
CCM Input Current
SYNC Input Pulse Width Range
V SYNCIN = 5V
V CCM = 5V
q
0.1
0.3
2
1
4
μ A
μ A
μ s
SYNC Out High
SYNC Out Low
3
0.4
V
V
REFOUT
REFEN > 1.4V, No Load
I SOURCE < 100 μ A, I SINK < 10 μ A
q
q
1.190
1.184
1.220
1.220
1.251
1.252
V
V
Error Amp Transconductance
50
μ S
Error Amp Output High
Error Amp Output Low
I LIM Resistor = 75k
2.2
0.15
V
V
PGOOD Threshold (Falling Edge)
PGOOD Hysteresis
PGOOD Low Voltage
PGOOD Leakage
Referenced to Feedback Voltage
Referenced to Feedback Voltage
I SINK = 1mA (10mA Max)
V PGOOD = 5.5V
q
q
q
q
–9.5
1.5
–11.4
2.5
0.12
0.01
–13.5
4
0.25
1
%
%
V
μ A
SS Current Source
V SS = 1V
2.7
μ A
Burst Threshold Voltage
Falling Edge
q
0.84
0.94
1.04
V
Burst Threshold Hysteresis
120
mV
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Current is measured into the V OUTS pin since the supply current is
bootstrapped to the output. The current will reflect to the input supply by
V OUT /(V IN ? Efficiency). The outputs are not switching.
Note 3: Once the output is started, the IC is not dependent on the V IN
supply.
Note 4: Total with all four FETs in parallel.
Note 5: The LTC3425E is guaranteed to meet performance specifications
from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
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.
Note 7: The typical logic threshold for this input is: V OUT /2
3425f
3
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| LTC3426ES6#TRMPBF | 功能描述:IC REG BOOST ADJ 2A TSOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 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:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
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