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参数资料
| 型号： | LTC3418EUHF#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 8A 38QFN |
| 标准包装： | 52 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5 V |
| 输入电压： | 2.25 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 8A |
| 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： | 38-WFQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 38-QFN（5x7） |
| 产品目录页面： | 1334 (CN2011-ZH PDF) |
LTC3418
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. (Note 2)
SYMBOL
I TRACK
ΔV PGOOD
R PGOOD
PARAMETER
TRACK Input Current
Power Good Range
Power Good Resistance
CONDITIONS
MIN
TYP
100
±7.5
100
MAX
200
±9
150
UNITS
nA
%
Ω
I Q
Input DC Bias Current
(Note 4)
Active Current
Shutdown
V FB = 0.7V, V ITH = 1V
V RUN = 0V
380
0.03
450
1.5
μA
μA
f OSC
Switching Frequency
Switching Frequency Range
R OSC = 69.8k Ω
(Note 6)
0.88
0.3
1
1.12
4
MHz
MHz
f SYNC
R PFET
R NFET
I LIMIT
SYNC Capture Range
R DS(ON) of P-Channel FET
R DS(ON) of N-Channel FET
Peak Current Limit
(Note 6)
I SW = 600mA
I SW = – 600mA
0.3
12
35
25
17
4
50
35
MHz
mΩ
mΩ
A
V UVLO
V REF
I LSW
V RUN
Undervoltage Lockout Threshold
Reference Output
SW Leakage Current
RUN Threshold
V RUN = 0V, V IN = 5.5V
1.75
1.219
0.5
2
1.250
0.1
0.65
2.25
1.281
1
0.8
V
V
μA
V
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 LTC3418 is guaranteed to meet performance speci?cations
from 0°C to 85°C. Speci?cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: The LTC3418 is tested in a feedback loop that adjusts V FB to
achieve a speci?ed error ampli?er output voltage (I TH ).
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: T J is calculated from the ambient temperature T A and power
dissipation P D as follows:
LTC3418: T J = T A + (P D )(34°C/W)
Note 6: This parameter is guaranteed by design and characterization.
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C unless otherwise noted.
Internal Reference Voltage
Switch On-Resistance
vs Temperature
vs Input Voltage
On-Resistance vs Temperature
0.8000
0.7995
V IN = 3.3V
45
40
50
45
V IN = 3.3V
0.7990
0.7985
0.7980
35
30
25
PFET
NFET
40
35
30
25
PFET
NFET
0.7975
0.7970
0.7965
20
15
10
5
20
15
10
5
0.7960
–40 –20
0
20
40 60
80
100 120
0
2.25
2.75
3.25
3.75
4.25
4.75
5.25
0
–40 –20
0
20
40
60
80
100 120
TEMPERATURE ( ° C)
3418 G01
INPUT VOLTAGE (V)
3418 G02
TEMPERATURE (°C)
3418 G03
3418fb
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3419 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 600mA Synchronous Step-Down Regulator |
| LTC3419EDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 600mA Synchronous Step-Down Regulator |
| LTC3419EDD#PBF | 功能描述:IC REG BUCK SYNC ADJ .6A DL 8DFN 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:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 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:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3419EDD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ .6A DL 8DFN 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 |
| LTC3419EDD-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 600mA Synchronous Step-Down Regulator |
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