参数资料
型号: ISL78322ARZ
厂商: Intersil
文件页数: 10/18页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ DL 12-DFN
标准包装: 75
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.6 V ~ 5.5 V
输入电压: 2.8 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 2.25MHz
电流 - 输出: 2A,1.7A
同步整流器:
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 12-VFDFN 裸露焊盘
包装: 管件
供应商设备封装: 12-DFN(4x3)
ISL78322
Typical Operating Performance (Unless otherwise noted) operating conditions are:
T A = +25°C, V VIN = 2.8V to 5.5V, EN = V IN , L1 = L2 = 1.2 μ H, C1 = 10 μ F, C2 = C4 = 22 μ F, I OUT1 = 0A to 2A, I OUT2 = 0A to 1.7A . (Continued)
V OUT1 RIPPLE 50mV/DIV
PG 5V/DIV
V OUT2 RIPPLE 50mV/DIV
PG 5V/DIV
IL1 1A/DIV
IL2 1A/DIV
TB = 200μs/DIV
FIGURE 20. LOAD TRANSIENT CHANNEL 1 (PWM)
LX1 2V/DIV
V OUT1 RIPPLE 50mV/DIV
IL1 1A/DIV
TB = 1ms/DIV
FIGURE 22. LOAD TRANSIENT CHANNEL 1 (PFM)
EN1 2V/DIV
V OUT1 1V/DIV
IL1 0.5A/DIV
TB = 200μs/DIV
FIGURE 21. LOAD TRANSIENT CHANNEL 2 (PWM)
LX2 2V/DIV
V OUT2 RIPPLE 50mV/DIV
IL2 1A/DIV
TB = 1ms/DIV
FIGURE 23. LOAD TRANSIENT CHANNEL 2 (PFM)
EN2 2V/DIV
V OUT2 1V/DIV
IL2 0.5A/DIV
PG 5V/DIV
TB = 500μs/DIV
PG 5V/DIV
TB = 500μs/DIV
FIGURE 24. SOFT-START WITH NO LOAD CHANNEL 1 (PWM)
10
FIGURE 25. SOFT-START WITH NO LOAD CHANNEL 2 (PWM)
FN7908.1
January 14, 2014
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