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参数资料
| 型号： | MAX669EUB/V+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： | 1.8 V ~ 28 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 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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