参数资料
型号: MAX668EUB+T
厂商: Maxim Integrated Products
文件页数: 7/18页
文件大小: 0K
描述: IC REG CTRLR PWM HYBRID 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式,混合
输出数: 1
频率 - 最大: 575kHz
占空比: 94%
电源电压: 3 V ~ 28 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
MAX668/MAX669
1.8V to 28V Input, PWM Step-Up
Controllers in μMAX
Typical Operating Characteristics (continued)
(Circuits of Figures 2, 3, 4, and 5; T A = +25°C; unless otherwise noted.)
EXITING SHUTDOWN
0V
ENTERING SHUTDOWN
OUTPUT
VOLTAGE
5V/div
INDUCTOR
CURRENT
2A/div
0A
SHUTDOWN
VOLTAGE
5V/div
0V
SHUTDOWN
VOLTAGE
0V
OUTPUT
VOLTAGE
0V
5V/div
V OUT
200mV/div
AC-COUPLED
Q1, DRAIN
5V/div
500 μ s/div
MAX668, V IN = 5V, V OUT = 12V, LOAD = 1.0A, R OSC = 100k ? ,
LOW VOLTAGE, NON-BOOTSTRAPPED
HEAVY-LOAD SWITCHING WAVEFORM
0V
5V/div
V OUT
100mV/div
AC-COUPLED
Q1, DRAIN
5V/div
200 μ s/div
MAX668, V IN = 5V, V OUT = 12V, LOAD = 1.0A,
LOW VOLTAGE, NON-BOOTSTRAPPED
LIGHT-LOAD SWITCHING WAVEFORM
0V
I L
1A/div
OUTPUT
VOLTAGE
AC-COUPLED
100mV/div
LOAD
CURRENT
1 μ s/div
MAX668, V IN = 5V, V OUT = 12V, I LOAD = 1.0A,
LOW VOLTAGE, NON-BOOTSTRAPPED
LOAD-TRANSIENT RESPONSE
0A
I L
1A/div
OUTPUT
VOLTAGE
100mV/div
AC-COUPLED
INPUT
VOLTAGE
1 μ s/div
MAX668, V IN = 5V, V OUT = 12V, I LOAD = 0.1A,
LOW VOLTAGE, NON-BOOTSTRAPPED
LINE-TRANSIENT RESPONSE
0A
0V
1A/div
Maxim Integrated
1ms/div
MAX668, V IN = 5V, V OUT = 12V, I LOAD = 0.1A TO 1.0A,
LOW VOLTAGE, NON-BOOTSTRAPPED
5V/div
20ms/div
MAX668, V IN = 5V TO 8V, V OUT = 12V, LOAD = 1.0A,
HIGH VOLTAGE, NON-BOOTSTRAPPED
7
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