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參數(shù)資料
| 型號： | MAX8888EZKXYT |
| 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)： | 1/9頁 |
| 文件大小： | 264K |
| 代理商： | MAX8888EZKXYT |
General Description
The MAX8887/MAX8888 low-dropout linear regulators
operate from a 2.5V to 5.5V input and deliver up to
300mA continuous (500mA pulsed) current. The
MAX8887 is optimized for low-noise operation, while the
MAX8888 includes an open-drain POK ouput flag. Both
regulators feature exceptionally low 100mV dropout at
200mA. These devices are available in a variety of pre-
set output voltages in the 1.5V to 3.3V range.
An internal PMOS pass transistor allows the low 55μA
supply current to remain independent of load, making
these devices ideal for portable battery-powered equip-
ment such as personal digital assistants (PDAs), cellu-
lar phones, cordless phones, and notebook computers.
Other features include a micropower shutdown mode,
short-circuit protection, thermal shutdown protection,
and an active-low open-drain power-OK (POK) output
that indicates when the output is out of regulation. The
MAX8887/MAX8888 are available in a thin 5-pin SOT23
package that is only 1mm high.
________________________Applications
Notebook Computers
Wireless Handsets
PDAs and Palmtop Computers
Digital Cameras
PCMCIA Cards
Hand-Held Instruments
Features
Guaranteed 300mA Output Current (500mA for
Pulsed Loads)
Low 100mV Dropout at 200mA Load
POK Output (MAX8888)
42μV
RMS
Output Noise (MAX8887)
Preset Output Voltages (1.5V, 1.8V, 2.85V, and
3.3V)
55μA No-Load Supply Current
Thermal Overload and Short-Circuit Protection
Foldback Output Current-Limit Protection
60dB PSRR at 1kHz
0.1μA Shutdown Current
Thin 5-Pin SOT23 Package, 1mm High
Ordering Information
M
Low-Dropout, 300mA Linear Regulators in SOT23
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
GND
BP
SHDN
1
5
OUT
IN
MAX8887
TOP VIEW
2
3
4
GND
POK
SHDN
1
5
OUT
IN
MAX8888
2
3
4
Pin Configurations
MAX8887
MAX8888
ON
OFF
INPUT
2.5V TO 5.5V
IN
SHDN
GND
(BP)
POK
OUT
V
OUT
300mA
C
IN
2.2
μ
F
C
OUT
2.2
μ
F
C
BP
0.01
μ
F
( ) ARE FOR MAX8887 ONLY.
Typical Operating Circuit
19-1859; Rev 3; 11/06
PART
TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
M A X8 8 8 7
E Z K15+ T
MAX8887EZK18+ T
MAX8887EZK29+ T
MAX8887EZK33+ T
MAX8887EZKxy+ T*
M A X8 8 8 8
E Z K15+ T
MAX8888EZK18+ T
MAX8888EZK29+ T
MAX8888EZK33+ T
MAX8888EZKxy+ T*
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
5 SOT23-5
ADQD
ADPX
ADPY
ADPZ
—
ADQE
ADQA
ADQB
ADQC
—
*
Other versions (xy) between +1.5 and +3.3V are available in
100mV increments. Contact factory for other versions. Minimum
order quantity is 25,000 units.
+
Denotes lead-free availability.
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