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TPS6521855

更新时间: 2024-11-17 02:52:07
品牌 Logo 应用领域
德州仪器 - TI 集成电源管理电路
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94页 2112K
描述
TPS6521855 Power Management IC (PMIC) for AM64x Arm®Cortex®-A53 Processors

TPS6521855 数据手册

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TPS6521855  
SLDS268 – MAY 2021  
TPS6521855 Power Management IC (PMIC) for AM64x Arm®Cortex®-A53 Processors  
– DCDC3, DCDC4 ±5% Tolerance  
– LDO1 ±5% Tolerance  
1 Features  
Three Adjustable Step-Down Converters With  
Integrated Switching FETs (DCDC1, DCDC2, and  
DCDC3):  
– DCDC1: 1.1-V Default, up to 1.8 A  
– DCDC3: 1.2 1.8-V Default, up to 1.8 A  
– VIN Range From 2.7 V to 5.5 V  
– Adjustable Output Voltage Range 0.85 V to  
1.675 V (DCDC1 and DCDC2)  
Protection, Diagnostics, and Control:  
– Undervoltage Lockout (UVLO)  
– Always-on Push-Button Monitor  
– Overtemperature Warning and Shutdown  
– Separate Power-Good Output for Backup and  
Main Supplies  
– I2C Interface (Address 0x24) (See Timing  
Requirements for I2C Operation at 400 kHz)  
– Adjustable Output Voltage Range 0.9 V to 3.4 V  
(DCDC3)  
2 Applications  
– Power Save Mode at Light Load Current  
– 100% Duty Cycle for Lowest Dropout  
– Active Output-Discharge When Disabled  
One Adjustable Buck-Boost Converter With  
Integrated Switching FETs (DCDC4):  
– DCDC4: 1.8-V Default, up to 1.6 A  
– VIN Range from 2.7 V to 5.5 V  
– Adjustable Output Voltage Range from 1.175 V  
to 3.4 V  
– Active Output-Discharge When Disabled  
Two Low-Quiescent Current, High Efficiency Step-  
Down Converters for Battery Backup Domain  
(DCDC5, DCDC6)  
Grid Infrastructure  
Appliances  
Human-Machine Interface (HMI)  
Industrial Automation  
Electronic Point of Sale (ePOS)  
Test and Measurement  
Personal Navigation  
Industrial Communications  
Connected Industrial Drives  
3 Description  
The TPS6521855 is  
a
single chip, power-  
management IC (PMIC) specifically designed to  
support the AM64x line of processors in both portable  
(Li-Ion battery) and nonportable (5-V adapter)  
applications. The device is characterized across a –  
40°C to +105°C temperature range, making it suitable  
for various industrial applications.  
– DCDC5: 1-V Output  
– DCDC6: 1.8-V Output  
– VIN Range from 2.2 V to 5.5 V  
– Supplied From System Power or Coin-Cell  
Backup Battery  
Device Information(1)  
Adjustable General-Purpose LDO (LDO1)  
– LDO1: 3.3-V Default up to 400 mA  
– VIN Range from 1.8 V to 5.5 V  
– Adjustable Output Voltage Range from 0.9 V to  
3.4 V  
PART NUMBER  
TPS6521855  
TPS6521855  
PACKAGE  
VQFN (48)  
HTQFP (48)  
BODY SIZE (NOM)  
6.00 mm × 6.00 mm  
7.00 mm × 7.00 mm  
– Active Output-Discharge When Disabled  
Low-Voltage Load Switch (LS1) With 350-mA  
Current Limit  
– VIN Range From 1.2 V to 3.6 V  
– 110-mΩ (Max) Switch Impedance at 1.35 V  
5-V Load Switch (LS2) With 100-mA or 500-mA  
Selectable Current Limit  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
– VIN Range From to 5.5 V  
– 500-mΩ (Max) Switch Impedance at 5 V  
High-Voltage Load Switch (LS3) With 100-mA or  
500-mA Selectable Current Limit  
– VIN Range From 1.8 V to 10 V  
– 500-mΩ (Max) Switch Impedance  
Supervisor With Built-in Supervisor Function  
Monitors  
– DCDC1, DCDC2 ±4% Tolerance  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 

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