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参数资料
| 型号： | LTC3418EUHF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 8A 38QFN |
| 标准包装： | 2,500 |
| 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： | 带卷 (TR) |
| 供应商设备封装： | 38-QFN（5x7） |
LTC3418
TYPICAL PERFORMANCE CHARACTERISTICS
Peak Inductor Current
T A = 25°C unless otherwise noted.
12
vs Burst Clamp Voltage
0
Load Regulation
V IN = 3.3V
Load Step Transient
10
–0.05
V OUT = 1.8V
f = 1MHz
OUTPUT
VOLTAGE
100mV/DIV
8
–0.10
6
4
–0.15
–0.20
INDUCTOR
CURRENT
5A/DIV
2
5V
3.3V
–0.25
V IN = 3.3V
V OUT = 2.5V
20μs/DIV
3418 G15
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
–0.30
0
1
2
3
4
5
6
7
8
LOAD STEP: 800mA TO 8A
V BCLAMP (V)
3418 G13
LOAD CURRENT (A)
3418 G14
OUTPUT
VOLTAGE
100mV/DIV
Load Step Transient
OUTPUT
VOLTAGE
100mV/DIV
Burst Mode Operation
OUTPUT
VOLTAGE
Start-Up Transient
500mV/DIV
INDUCTOR
CURRENT
5A/DIV
INDUCTOR
CURRENT
1A/DIV
INDUCTOR
CURRENT
2A/DIV
V IN = 3.3V 40μs/DIV
V OUT = 2.5V
LOAD STEP: 3A TO 8A
3418 G16
V IN = 3.3V
V OUT = 2.5V
LOAD: 200mA
20μs/DIV
3418 G17
V IN = 3.3V
V OUT = 2.5V
LOAD: 8A
1ms/DIV
3418 G18
PIN FUNCTIONS
SW (Pins 1, 2, 11, 12, 20, 21, 30, 31): Switch Node
Connection to Inductor. This pin connects to the drains
of the internal main and synchronous power MOSFET
switches.
PV IN (Pins 3, 4, 9, 10, 22, 23, 28, 29): Power Input
Supply. Decouple these pins to PGND with capacitors on
all four corners of the package.
PGOOD (Pin 5): Power Good Output. Open-drain logic
output that is pulled to ground when the output voltage
is not within ±7.5% of regulation point.
R T (Pin 6): Oscillator Resistor Input. Connecting a resistor
RUN/SS (Pin 7): Run Control and Soft-Start Input. Forcing
this pin below 0.5V shuts down the LTC3418. In shutdown
all functions are disabled drawing <1.5μA of supply cur-
rent. A capacitor to ground from this pin sets the ramp
time to full output current.
SGND (Pin 8): Signal Ground. All small-signal components
and compensation components should connect to this
ground, which in turn connects to PGND at one point.
PGND (Pins 13, 14, 15, 17, 18, 19, 32, 33, 34, 36, 37,
38): Power Ground. Connect this pin closely to the (–)
terminal of C IN and C OUT .
to ground from this pin sets the switching frequency.
3418fb
5
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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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