参数资料
型号: LT8582IDKD#TRPBF
厂商: Linear Technology
文件页数: 33/36页
文件大小: 0K
描述: IC REG MULTI CONFIG ADJ 3A 24DFN
标准包装: 2,500
类型: 升压(升压),反相,回扫,Sepic
输出类型: 可调式
输出数: 2
输出电压: 最高 42V
输入电压: 2.5 V ~ 22 V
PWM 型: 电流模式
频率 - 开关: 200kHz ~ 2.5MHz
电流 - 输出: 3A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 24-DFN(7x4)
LT8582
TYPICAL APPLICATIONS
SuperCap Backup Power
M1
V OUT
V IN
12V ±5%
C IN1
L1
5μH
C1
2.2μF
D1
6.04k
C OUT1
V OUT1
10V
V IN (V IN > 11.4V)
11V (V IN < 11.4V)
4.7μF
L2
5μH
4.7μF
1.2k
1/4W
C S1
60F
100k
73.2k
11k
SWA1 SWB1
PG1 GATE1
SHDN1 V C1
LT8582
SYNC1
V IN1 FBX1
SS1
RT1
130k
0.47μF
15.4k
100pF
C OUT2
10μF
1.2k
1/4W
1.2k
1/4W
1.2k
1/4W
C S2
60F
C S3
60F
C S4
60F
CLKOUT1
GND
80.6k
1nF
V OUT1
100k
L3
2.2μH
CLKOUT2
SYNC2
PG2
SHDN2
V IN2
SWA2
RT2
SS2
V C2
GATE2
FBX2
SWB2
80.6k
D2
0.47μF
105k
3.3nF
12.7k
100pF
C OUT3
22μF
×2
C IN1 , C IN2 : 4.7μF, 16V, X7R, 1206
C OUT1 : 4.7μF, 25V, X7R, 1206
C OUT2 : 10μF, 25V, X7R, 1210
C OUT3 : 22μF, 16V, X7R, 1210
C1: 2.2μF, 25V, X7R, 0805
C S1 TO C S4 : 60F, 2.5V, COOPER HB1840-2R5606-R
D1, D2: CENTRAL SEMI CTLSH5-40M833
L1, L2: COOPER CTX5-1A
L3: COOPER HCM0703-2R2
M1: VISHAY SI7123DN
C IN2
4.7μF
GATE
System Level Diagram
8582 TA05a
V IN
V IN1
SEPIC
V OUT1
V IN2
BOOST
V OUT2
V OUT
8582 TA05b
SUPERCAPS
I L1 + I L2
2A/DIV
I L3
2A/DIV
V OUT ≈ V IN
5V/DIV
V OUT1
Charging SuperCaps
Input Removed, Holdup for ~110s with 500mA Load
I L1 + I L2
2A/DIV
I L3
2A/DIV
V OUT ≈ 11V
5V/DIV
V OUT1
5V/DIV
5V/DIV
25s/DIV
8582 TA05c
25s/DIV
8582 TA05d
8582f
33
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