参数资料
| 型号： | LTC3428EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 4A 10DFN |
| 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： | 1.6 V ~ 5.25 V |
| 输入电压： | 1.6 V ~ 4.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 4A |
| 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： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
LTC3428
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.3V, V OUT = 5V unless otherwise noted.
PARAMETER
NMOS Switch Leakage
NMOS Switch On Resistance
CONDITIONS
V SWA , V SWB = 5.5V, Per Phase
V OUT = 5V, Per Phase
MIN
TYP
0.1
0.093
MAX
2.5
UNITS
μA
Ω
NMOS Current Limit
Per Phase
l
2
2.5
A
SHDN Input Threshold
SHDN Input Current
Maximum Duty Cycle
l
l
0.4
80
0.8
0.01
87
1.5
1
V
μA
%
Minimum Duty Cycle
Current Limit Delay to Output
(Note 3)
l
400
0
%
ns
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 LTC3428E is guaranteed to meet performance speci?cations
from 0°C to 70°C. Speci?cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
Note 3: Speci?cation is guaranteed by design and not 100% tested in
production.
Note 4: 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 speci?ed maximum operating junction
temperature may impair device reliability.
with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS
All characteristic curves at T A = 25°C unless otherwise noted.
SW Pin and Inductor Current in
Discontinuous Mode, Demonstrating
SWA
5V/DIV
SWB
SWA, SWB Switching Waveforms
500ns/DIV
3428 G01
2V/DIV
500mA/DIV
Anti-Ring Circuit Operation
500ns/DIV
3428 G02
100mV/DIV
500mA/DIV
Transient Response, 0.5A to 1.5A
100 μ s/DIV
3428 G03
3428fb
3
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| LTC3429BES6#TRMPBF | 功能描述:IC REG BST SYNC ADJ .6A TSOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 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:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
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