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参数资料
| 型号： | MAX669EUB+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.8V to 28V Input, PWM Step-Up Controllers in µMAX |
| 中文描述： | SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | COMPACT, UMAX-10 |
| 文件页数： | 16/18页 |
| 文件大小： | 289K |
| 代理商： | MAX669EUB+T |
MAX668/MAX669
1.8V to 28V Input, PWM Step-Up
Controllers in MAX
_______________________________________________________________________________________
7
EXITING SHUTDOWN
MAX668
toc14
OUTPUT
VOLTAGE
5V/div
INDUCTOR
CURRENT
2A/div
SHUTDOWN
VOLTAGE
5V/div
MAX668, VIN = 5V, VOUT = 12V, LOAD = 1.0A, ROSC = 100k,
LOW VOLTAGE, NON-BOOTSTRAPPED
500
s/div
0V
0A
ENTERING SHUTDOWN
MAX668
toc15
OUTPUT
VOLTAGE
5V/div
SHUTDOWN
VOLTAGE
5V/div
MAX668, VIN = 5V, VOUT = 12V, LOAD = 1.0A,
LOW VOLTAGE, NON-BOOTSTRAPPED
200
s/div
0V
HEAVY-LOAD SWITCHING WAVEFORM
MAX668
toc16
VOUT
200mV/div
AC-COUPLED
IL
1A/div
Q1, DRAIN
5V/div
MAX668, VIN = 5V, VOUT = 12V, ILOAD = 1.0A,
LOW VOLTAGE, NON-BOOTSTRAPPED
1
s/div
0V
0A
LOAD-TRANSIENT RESPONSE
MAX668
toc18
OUTPUT
VOLTAGE
AC-COUPLED
100mV/div
LOAD
CURRENT
1A/div
MAX668, VIN = 5V, VOUT = 12V, ILOAD = 0.1A TO 1.0A,
LOW VOLTAGE, NON-BOOTSTRAPPED
1ms/div
LIGHT-LOAD SWITCHING WAVEFORM
MAX668
toc17
VOUT
100mV/div
AC-COUPLED
IL
1A/div
Q1, DRAIN
5V/div
MAX668, VIN = 5V, VOUT = 12V, ILOAD = 0.1A,
LOW VOLTAGE, NON-BOOTSTRAPPED
1
s/div
0V
0A
Typical Operating Characteristics (continued)
(Circuits of Figures 2, 3, 4, and 5; TA = +25°C; unless otherwise noted.)
LINE-TRANSIENT RESPONSE
MAX668
toc19
INPUT
VOLTAGE
5V/div
0V
OUTPUT
VOLTAGE
100mV/div
AC-COUPLED
MAX668, VIN = 5V TO 8V, VOUT = 12V, LOAD = 1.0A,
HIGH VOLTAGE, NON-BOOTSTRAPPED
20ms/div
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