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MAX8902BATA+

更新时间： 2024-11-23 03:14:59
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美信 - MAXIM 稳压器
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10页 267K
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Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package

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19-0990; Rev 0; 9/07  
Low-Noise 500mA LDO Regulators  
in a 2mm x 2mm TDFN Package  
/MAX8902B  
General Description  
Features  
The MAX8902A/MAX8902B low-noise linear regulators  
deliver up to 500mA of output current with only  
♦ 1.7V to 5.5V Input Voltage Range  
♦ 0.6V to 5.3V Output Voltage Range  
16µV  
of output noise in a 100kHz bandwidth. These  
RMS  
♦ 16µV  
Output Noise, 10Hz to 100kHz  
RMS  
regulators maintain their output voltage over a wide  
input range, requiring only 100mV of input-to-output  
headroom at full load.  
♦ 80µA Operating Supply Current  
♦ 92dB PSRR at 5kHz  
These LDOs maintain a low 80µA typical supply cur-  
rent, independent of the load current and dropout volt-  
age. The regulator control circuitry includes a  
programmable soft-start circuit and short circuit,  
reverse current, and thermal overload protection. Other  
features include a shutdown input and a power-OK out-  
put (MAX8902B only).  
♦ Guaranteed 500mA Output Current  
♦
1.5ꢀ Output Aꢁꢁuraꢁy Oꢂer ꢃoad, ꢃine, and  
Temperature  
♦ 100mV (max) Dropout at 500mA ꢃoad  
♦ < 1µA Shutdown Supply Current  
♦ 700mA Short-Cirꢁuit Proteꢁtion  
The MAX8902A output voltage can be set to 1.5V, 1.8V,  
2.0V, 2.5V, 3.0V, 3.1V, 3.3V, 4.6V, or 4.7V using the  
SELA and SELB inputs. The MAX8902B output voltage  
can be set between 0.6V and 5.3V with an external  
resistor voltage divider.  
♦ Thermal-Oꢂerload Proteꢁtion  
♦ Output-to-Input Reꢂerse Current Proteꢁtion  
♦ 2mm x 2mm x 0.8mm TDFN Paꢁkage  
Applications  
Ordering Information  
Notebook Computers  
TOP  
MARK  
PKG  
CODE  
PART  
FEATURES  
MP3 and Portable Media Players  
Wireless Headphones  
Pin-selectable output  
voltage  
MAX8902AATA+  
MAX8902BATA+  
ABG  
ABH  
T822-1  
T822-1  
GPS Portable Navigation Devices  
Smartphones  
Adjustable output  
voltage  
+Denotes a lead-free, RoHS-compliant package.  
Note: All devices are in an 8-pin, 2mm x 2mm TDFN package  
with an exposed paddle and operate over the -40°C to +125°C  
automotive temperature range.  
Typical Operating Circuits  
INPUT  
INPUT  
4.7V TO 5.5V  
OUTPUT ADJUSTABLE  
OUTPUT  
4.6V  
1.7V TO 5.5V  
0.6V TO 5.3V  
IN  
OUT  
IN  
OUT  
BYP  
4.7μF  
4.7μF  
0.01μF  
10μF  
0.01μF  
10μF  
MAX8902B  
MAX8902A  
R1  
R2  
BYP  
FB  
ON  
EN  
EN  
OFF  
ON  
LOGIC  
SUPPLY  
OFF  
OUTS  
R3  
100kΩ  
SELA  
EP  
GS  
SELB  
GND  
POK  
TO μC  
GND  
EP  
Pin Configurations appear at end of data sheet.  
________________________________________________________________ Maxim Integrated Produꢁts  
1
For priꢁing, deliꢂery, and ordering information, please ꢁontaꢁt Maxim Direꢁt at 1-888-629-4642,  
or ꢂisit Maxim's website at www.maxim-iꢁ.ꢁom.  
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MAX8902BATA+ 替代型号

型号 品牌 替代类型 描述 数据表
MAX8902BATA/V+ MAXIM

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