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MAX5091

更新时间： 2024-11-19 03:53:59
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美信 - MAXIM /
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15页 287K
描述
28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output

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MAX5091 数据手册

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19-0654; Rev 0; 11/06  
28V, 100mA, Low-Quiescent-Current LDO  
with Reset and Power-Fail Input/Output  
General Description  
Features  
♦ +5V to +28V Wide Operating Input Voltage Range  
♦ Withstands 40V Input Voltage Transients  
♦ Guaranteed 100mA Output Current  
The MAX5091 high-voltage linear regulator is designed  
to operate from a +5V to +28V input voltage, and with-  
stands up to 40V transients. The device consumes only  
45µA of quiescent current at 100µA output current. The  
MAX5091 delivers up to 100mA of output current with  
low 50mV maximum dropout voltage. The MAX5091  
provides an active-low open-drain microprocessor  
RESET output. The reset timeout period is programma-  
ble and can be set with an external capacitor. The  
MAX5091 includes an uncommitted comparator for  
input voltage monitoring/power-fail indication. The  
device is available with a fixed +5V (MAX5091A) or  
+3.3V (MAX5091B) output. The MAX5091 is short-cir-  
cuit protected and includes thermal shutdown.  
♦ 45µA Typical Quiescent Current at 100µA Output  
Current  
♦ Preset +5V (MAX5091A) or +3.3V (MAX5091B)  
Output Voltage  
♦ Stable with Only 10µF Output Capacitance  
♦ RESET Output with Adjustable Timeout Period  
♦ Uncommitted Comparator for Voltage  
Monitoring/Power-Fail Indication  
The MAX5091 operates over the -40°C to +125°C auto-  
motive temperature range and is available in 8-pin,  
thermally enhanced TDFN and SO-EP packages.  
♦ Output Overload and Short-Circuit Protection  
♦ Thermal Shutdown  
♦ Available in 8-Pin TDFN (1.95W at T = +70°C) and  
A
Applications  
8-Pin SO (1.5W at T = +70°C)  
A
Automotive  
Industrial  
Home Security/Safety  
♦ Operates Over -40°C to +125°C Automotive  
Temperature Range  
Telecom/Networking  
Ordering Information  
PIN-  
PACKAGE  
PRESET V  
PKG  
CODE  
TOP  
MARK  
OUT  
PART  
(V)  
T833-2  
S8E-14  
T833-2  
S8E-14  
MAX5091AATA+T  
MAX5091AASA+  
MAX5091BATA+T  
MAX5091BASA+  
8 TDFN-8  
8 SO-EP*  
8 TDFN-8  
8 SO-EP*  
5
+APB  
—
5
3.3  
3.3  
+APC  
—
Note: All devices specified for -40°C to +125°C operating temperature range.  
+Denotes lead-free package. *EP = Exposed paddle.  
Pin Configurations  
Typical Application Circuit  
V
SO  
7
RES GND  
OUT  
TOP VIEW  
+5V (MAX5091A)/  
+3.3V (MAX5091B)  
100mA  
8
6
5
+5V TO +28V  
V
V
V
OUT  
IN  
S
C
IN  
C
10μF  
OUT  
10μF  
R
H
R
RES  
MAX5091  
ON  
288kΩ  
10kΩ  
MAX5091  
EN  
SI  
OFF  
μC  
RESET  
EXPOSED PADDLE  
RES  
SO  
+
R
L
100kΩ  
R
SO  
10kΩ  
1
2
3
4
POWER-  
FAIL  
CT  
C
0.1μF  
V
S
SI  
EN  
CT  
CT  
GND  
TDFN  
(3mm x 3mm)  
Pin Configurations continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...15

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 		fully assembled and tested surface-mount printed-circuit board

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