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參數資料
| 型號： | MAX877EPA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Quadruple 2-Input Positive-NAND Gates 14-CDIP -55 to 125 |
| 中文描述： | SWITCHING REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數： | 5/12頁 |
| 文件大小： | 128K |
| 代理商： | MAX877EPA |
M
5V /3.3V /3V /Adjustable-Output,
S tep-Up/S tep-Down DC-DC Converters
_______________________________________________________________________________________
5
A: SWITCH VOLTAGE (LX PIN), 2V/div
B: INDUCTOR CURRENT, 0.5A/div
C: OUTPUT VOLTAGE RIPPLE, 50mV/div
MAX877, V
IN
= 1.5V, I
OUT
= 100mA
SWITCHING WAVEFORMS—
CONTINUOUS CONDUCTION
A
B
C
0mA
5
μ
s/div
A: SWITCH VOLTAGE (LX PIN),
B: INDUCTOR CURRENT, 0.5A/div
C: OUTPUT VOLTAGE RIPPLE, 50mV/div
MAX877, V
IN
= 3V, I
OUT
= 70mA
SWITCHING WAVEFORMS—
DISCONTINUOUS CONDUCTION
A
B
0mA
C
2
μ
s/div
A: SWITCH VOLTAGE (LX PIN),
B: INDUCTOR CURRENT, 0.5A/div
C: OUTPUT VOLTAGE RIPPLE, 50mV/div
MAX878, V
IN
= 6.0V, V
OUT
= 5.0V, I
OUT
= 210mA
STEP-DOWN CONVERSION
A
B
0mA
C
5
μ
s/div
A: SHDN, 2V/div
B: V
OUT
, 1V/div
V
OUT
= 3V
MAX878
START-UP TIME
GND
GND
10ms/div
A
B
A: INPUT VOLTAGE, 2V/div, 2V to 6V
B: OUTPUT VOLTAGE, 50mV/div
MAX878, I
OUT
= 100mA, V
OUT
= 3.3V
STEP-UP/STEP-DOWN
OPERATION
A
B
20ms/div
GND
____________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 4, T
A
= +25°C, unless otherwise noted.)
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| MAX877ESA | Quadruple 2-Input Positive-NAND Gates 20-LCCC -55 to 125 |
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| MAX878CSA | Quadruple 2-Input Positive-NAND Gates 14-CDIP -55 to 125 |
| MAX878EPA | 5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters |
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