参数资料
型号: LTC3704IMS#PBF
厂商: Linear Technology
文件页数: 23/28页
文件大小: 0K
描述: IC REG CTRLR INV PWM CM 10-MSOP
标准包装: 50
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 97%
电源电压: 2.5 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
LTC3704
APPLICATIO S I FOR ATIO
PC Board Layout Checklist
1. In order to minimize switching noise and improve
output load regulation, the GND pin of the LTC3704
should be connected directly to 1) the negative termi-
nal of the INTV CC decoupling capacitor, 2) the negative
terminal of the output decoupling capacitors, 3) the
R3
C3
C C2
source of the power MOSFET or the bottom terminal of
the sense resistor, 4) the negative terminal of the input
capacitor and 5) at least one via to the ground plane
immediately adjacent to Pin 6. The ground trace on the
top layer of the PC board should be as wide and short
as possible to minimize series resistance and induc-
tance.
V IN
C C1
R C
R4
1
12
R2
R1
PIN 1
LTC3704
C IN
M1
C DC
2
3
4
L1
11
10
9
R T
PSEUDO-KELVIN
SIGNAL GROUND
C VCC
C OUT
C OUT
D1
5
6
L2
8
7
CONNECTION
TRUE REMOTE
OUTPUT SENSING
V OUT
VIAS TO GROUND
PLANE
3704 F??
Figure 22. LTC3704 Positive-to-Negative Converter Suggested Layout
V IN
C3
R3
R4
L1
V OUT
C C2
C C1
R2
R1
R T
R C
1
2
3
4
5
RUN
I TH
LTC3704
NFB
FREQ
MODE/
SENSE
V IN
INTV CC
GATE
GND
10
9
8
7
6
C VCC
C IN
C DC
M1
D1
L2
C OUT
SYNC
PSEUDO-KELVIN
3704 F23
GND
GROUND CONNECTION
BOLD LINES INDICATE HIGH CURRENT PATHS
Figure 23. LTC3704 Positive-to-Negative Converter Layout Diagram
3704fb
23
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