参数资料
型号: LTC3523EUD-2#PBF
厂商: Linear Technology
文件页数: 14/16页
文件大小: 0K
描述: IC REG BUCK BOOST SYNC ADJ 16QFN
标准包装: 121
类型: 降压(降压),升压(升压)
输出类型: 可调式
输出数: 2
输出电压: 0.62 V ~ 5.5 V
输入电压: 1.8 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 2.4MHz
电流 - 输出: 400mA,600mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
包装: 管件
供应商设备封装: 16-QFN-EP(3x3)
LTC3523/LTC3523-2
TYPICAL APPLICATIONS
Li-Ion to 5V/150mA, 2.5V/200mA
V IN
2.5V TO 4.2V
Li-Ion
+
4.7μF
10μH
V IN1
V IN2
V BAT
4.7μH
V OUT2
STEP-DOWN
V OUT1
STEP-UP
OUTPUT
5V
150mA
10μF
768k
SW1
V OUT
FB1
PGOOD1
LTC3523
SW2
FB2
MODE
PGOOD2
V IN
10pF
768k
243k
10μF
OUTPUT
2.5V
200mA
243k
SHDN1
SHDN2
GND1 GND2 GND3
OFF ON
100
90
80
70
Ef?ciency and Power Loss
vs Load Current
EFFICIENCY
OFF ON
1000
100
3523 TA03
60
50
40
30
20
10
P0WER
LOSS
V IN = 3.6V
V OUT1 = 5V
V OUT2 = 2.5V
f OSC = 1.2MHz
STEP-UP
STEP-DOWN
10
1
0
0
1
10
100
0
1000
LOAD CURRENT (mA)
3523 TA03b
3523fb
14
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