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MAX77720

更新时间： 2024-09-13 17:01:43
品牌 Logo 应用领域
亚德诺 - ADI 集成电源管理电路
页数 文件大小 规格书
52页 2995K
描述
Wide Output-Voltage Range, Dual-Polarity PMIC

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MAX77720 数据手册

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Click here to ask an associate for production status of specific part numbers.  
MAX77720  
Wide Output-Voltage Range, Dual-  
Polarity PMIC  
General Description  
Benefits and Features  
The MAX77720 dual-output DC-DC converter generates  
two independently regulating positive and negative  
supply voltages. The positive output delivers up to 4W of  
power at the output while the negative output delivers up  
to 4.8W of power. The MAX77720 is ideal for powering  
time of flight (ToF) imaging sensors and OLED displays  
in smart internet of things (IoT) devices.  
•
•
2.5V to 5.5V Input Voltage Range  
Programmable Output-Voltage Range (Up to +20V  
and Down to -24V)  
•
Flexible and Configurable  
2
o
o
o
I C Interface  
Factory OTP Settings Available  
Programmable Turn-On and -Off Delay  
Between Rails  
The MAX77720 generates an adjustable negative output  
down to -24V and a positive output voltage up to +20V.  
The negative output operates at a fixed 1.5MHz  
frequency while the positive output operates at a fixed  
1MHz frequency to ease noise filtering in sensitive  
applications and to reduce external component size.  
•
1.2V to 3.6V V -Compatible  
IO  
™
•
•
True Shutdown for Boost  
Programmable Peak Current Limit for Boost (Up to  
1A and Down to 0.5A)  
Thermal-Shutdown Protection  
•
•
•
•
•
•
The nERR pin, when connected to an external device’s  
Fault-Condition Flag  
output pin, is used to disable the regulators to signal an  
Error Pin for External Sensor Fault Condition  
Controlled Inrush Current During Soft-Start  
-40°C to +125°C Operating Temperature Range  
2
external error. This error can be cleared through I C  
from a host processor to re-enable the regulators. While  
in the error on state, there is an option for the active  
discharge to be enabled or disabled (for example, to set  
the regulator outputs to a high-Z floating).  
Small Size  
2
o
o
3.86mm Wafer-Level Package (WLP)  
20-Bump, 0.4mm-Pitch, 5 x 4 Array  
2
A bidirectional I C serial interface allows for configuring  
Pin Configuration  
and checking the status of the devices. Numerous  
factory-programmable options allow the device to be  
tailored for many applications, enabling faster time to  
market.  
TOP VIEW  
(BUMP SIDE DOWN)  
MAX77720  
1
2
3
4
5
Simplified Application Diagram  
+
A
B
C
D
FBIBB  
ToF  
RECEIVER  
SENSOR  
LXIBB  
INIBB  
SCL  
nERR  
SDA  
EN  
GNDIBB  
AGND  
LXIBB  
INIBB  
FBIBB  
LXIBB  
INIBB  
AGND  
IN  
MAX77720  
ToF  
TRANS-  
MITTER  
LXBST  
OUTBST  
FBBST  
OUTBST  
PGNDBST  
FBBST  
EN  
POK  
nIRQ  
SCL  
POK  
AGND  
nERR  
nERR*  
SDA*  
SDA  
AGND PGNDBST  
*PULL-UP RESISTORS NOT DRAWN.  
LXBST  
IN  
nIRQ  
POK  
Key Applications  
WLP  
(2.15mm x 1.80mm x 0.5mm, 0.4mm PITCH)  
•
•
•
ToF Sensors  
OLED Displays  
Bipolar Amplifiers  
True Shutdown is a trademark of Maxim Integrated Products, Inc.  
Ordering Information appears at end of data sheet.  
19-101733; Rev 0; 9/23  
© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
 
 
 
 
 
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