参数资料
型号: ISL8088IRZ
厂商: Intersil
文件页数: 11/18页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.8A 10DFN
标准包装: 100
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: 2.75 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 2.25MHz
电流 - 输出: 800mA
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: 10-VFDFN 裸露焊盘
包装: 管件
供应商设备封装: 10-DFN(3x3)
ISL8088
Typical Operating Performance Unless otherwise noted, operating conditions are: TA = +25°C, VIN = 2.75V to 5.5V,
EN = V IN , L 1 = L 2 = 2.2μH, C 1 = 10μF, C 2 = C 4 = 10μF, V OUT1 = 2.5V, V OUT2 = 1.8V, I OUT1 = I OUT2 = 0A to 800mA. (Continued)
200ns/DIV
LX1 2V/DIV
SYNCH 2V/DIV
200ns/DIV
L X1 2V/DI          V
S YNCH     2V/DIV
I L1 0.5A/DIV
V OUT1 RIPPLE 20mV/DIV
I L1 0.5A/DIV
V OUT1 RIPPLE 20mV/DIV
FIGURE 32. CH1 STEADY STATE OPERATION AT NO LOAD (PFM)
WITH FREQUENCY = 4MHz
200ns/DIV
LX2 2V/DIV
SYNCH 2V/DIV
V OUT2 RIPPLE 20mV/DIV
I L2 0.5A/DIV
FIGURE 34. CH2 STEADY STATE OPERATION AT NO LOAD (PFM)
WITH FREQUENCY = 4MHz
FIGURE 33. CH1 STEADY STATE OPERATION AT FULL LOAD (PFM)
WITH FREQUENCY = 4MHz
200ns/DIV
LX2 2V/DIV
SYNCH 2V/DIV
I L2 0.5A/DIV
V OUT2 RIPPLE 20mV/DIV
FIGURE 35. CH2 STEADY STATE OPERATION AT FULL LOAD (PFM)
WITH FREQUENCY = 4MHz
100ns/DIV
L X1  5V/DI          V
100ns/DIV
L X1  5V/DI          V
L X2 5V/DI          V
SYNCH 5V/DIV
V OUT1 RIPPLE 20mV/DIV
V OUT2 RIPPLE 20mV/DIV
FIGURE 36. CH1 AND CH2 STEADY STATE OPERATION AT NO LOAD
(PFM) WITH FREQUENCY = 4MHz
11
L X2 5V/DI          V
SYNCH 5V/DIV
V OUT1 RIPPLE 20mV/DIV
V OUT2 RIPPLE 20mV/DIV
FIGURE 37. CH1 AND CH2 STEADY STATE OPERATION AT FULL LOAD
(PFM) WITH FREQUENCY = 4MHz
FN6858.2
May 26, 2011
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