參數(shù)資料
型號: MAX8887EZK29T
廠商: Maxim Integrated Products, Inc.
英文描述: Low-Dropout, 300mA Linear Regulators in SOT23
中文描述: 低壓差,300mA的線性穩(wěn)壓器采用SOT23
文件頁數(shù): 5/9頁
文件大?。?/td> 264K
代理商: MAX8887EZK29T
M
Low-Dropout, 300mA Linear Regulators in SOT23
_______________________________________________________________________________________
5
LINE-TRANSIENT RESPONSE
20mV/div
AC-COUPLED
4V
4.5V
V
OUT
V
IN
V
OUT
= 3.3V
I
LOAD
= 100mA
100
μ
s/div
SHUTDOWN WAVEFORM
MAX8887/8 toc14
V
SHDN
1V/div
DC-COUPLED
2V/div
V
OUT
V
OUT
= 3.3V, R
LOAD
= 10
Ω
20
μ
s/div
POK WAVEFORM
MAX8887/8 toc15
2V/div
2V/div
2V/div
V
OUT
V
POK
V
IN
V
OUT
= 3.3V, R
LOAD
= 100
Ω
20ms/div
Pin Description
MAX8887
MAX8888
NAME
FUNCTION
1
1
IN
Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with 2.2μF
capacitor to GND (see the
Capacitor Selection and Regulator Stability
section).
2
2
GND
Ground
3
3
SHDN
Active-Low Shutdown Input. A logic low reduces the supply current to below 0.1μA.
In shutdown, POK and OUT are driven low. Connect to IN for normal operation.
4
POK
Open-Drain Active-Low POK Output. POK remains low while the output voltage (V
OUT
) is
below the reset threshold. Connect a 100k
Ω
pullup resistor to OUT to obtain a logic level
output. POK is driven low in shutdown. If not used, leave this pin unconnected.
4
BP
Reference Bypass. Bypass with a low-leakage 0.01μF ceramic capacitor.
5
5
OUT
Regulator Output. Sources up to 300mA guaranteed. Bypass with 2.2μF (<0.2
Ω
typical
ESR) ceramic capacitor to GND.
LOAD-TRANSIENT RESPONSE
NEAR DROPOUT
MAX8887/8 toc12
50mV/div
AC-COUPLED
300mA
10mA
V
OUT
I
OUT
V
OUT
= 3.3V
IN
= 3.4V
10
μ
s/div
Typical Operating Characteristics (continued)
(
Typical Operating Circuit
, T
A
= +25°C, unless otherwise noted.)
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