参数资料
型号: L5983
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8
封装: 3 X 3 MM, 1.08 MM HEIGHT, LEAD FREE, VFQFPN-8
文件页数: 26/37页
文件大小: 832K
代理商: L5983
Application information
L5983
32/37
Doc ID 13005 Rev 6
Figure 28.
Load regulation
Figure 29.
Line regulation
Figure 30.
Load transient:
from 300 mA to 1.3 A
Figure 31.
Soft-start
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.2
0.4
0.6
0.8
1
1.2
1.4
IO [A]
Δ
V
FB
/V
FB
[%
]
VCC=18V
VCC=5V
VCC=12V
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
2
4
6
8
10
12
14
16
18
VCC [V]
Δ
VF
B
/VF
B
[
%
]
Io=1A
IL
0.5A/div
VOUT
AC coupled
100mV/div
COUT=47uF
L=6.8uH
FSW=500kHz
Timescale
100us/div
IL
0.5A/div
VOUT
AC coupled
100mV/div
COUT=47uF
L=6.8uH
FSW=500kHz
Timescale
100us/div
Load slew rate = 2.5A/us
IL
0.5A/div
VOUT
AC coupled
100mV/div
COUT=47uF
L=6.8uH
FSW=500kHz
Timescale
100us/div
IL
0.5A/div
VOUT
AC coupled
100mV/div
COUT=47uF
L=6.8uH
FSW=500kHz
Timescale
100us/div
Load slew rate = 2.5A/us
V
OUT
0.5V/div
V
FB
200mV/div
I
L
0.5A/div
Time base = 1 ms/div
V
OUT
0.5V/div
V
FB
200mV/div
I
L
0.5A/div
V
OUT
0.5V/div
V
FB
200mV/div
I
L
0.5A/div
Time base = 1 ms/div
Figure 32.
Short circuit behavior
I
L
500mA/div
V
OUT
1V/div
OUT
10V/div
OUTPUT
SHORTED
Time base 5ms/div
I
L
500mA/div
V
OUT
1V/div
OUT
10V/div
OUTPUT
SHORTED
Time base 5ms/div
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相关代理商/技术参数
参数描述
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L5985_08 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 A step-down switching regulator
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