TPS6521825 Power Management IC (PMIC) for NXP i.MX 8M mini | TI.com

TPS6521825
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Power Management IC (PMIC) for NXP i.MX 8M mini

Power Management IC (PMIC) for NXP i.MX 8M mini - TPS6521825
Datasheet
TPS6521825 Power Management IC (PMIC) for NXP i.MX 8M Mini datasheet
 

Description

The TPS6521825 is a single chip, power-management IC (PMIC) specifically intended to support the i.MX 8M Mini processor in conjunction with the LP873347 device. The device is characterized across a –40°C to +105°C temperature range, making it suitable for various industrial applications.

Three hysteretic step-down converters are targeted at providing power for the processor core, MPU, and DDRx memory. The default output voltages for each converter can be adjusted through the I2C interface. DCDC1 and DCDC2 feature dynamic voltage scaling to provide power at all operating points of the processor. DCDC1 and DCDC2 also have programmable slew rates to help protect processor components. DCDC3 remains powered while the processor is in sleep mode to maintain power to DDRx memory. Backup power provides two step-down converters for the tamper, RTC, or both domains of the processor if system power fails or is disabled. If both system power and coin-cell battery are connected to the PMIC, power is not drawn from the coin-cell battery. A separate power good signal monitors the backup converters. A battery backup monitor determines the power level of the coin-cell battery.

Features

  • Three Adjustable Step-Down Converters With Integrated Switching FETs (DCDC1, DCDC2, and DCDC3):
    • DCDC1: 0.85-V Default, up to 1.8 A
    • DCDC2: 1.1-V Default, up to 1.8 A
    • DCDC3: 3.3-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)
    • Adjustable Output Voltage Range 0.9 V to 3.4 V (DCDC3)
    • 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 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)
    • 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
  • Adjustable General-Purpose LDO (LDO1)
    • LDO1: 1.8-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
    • 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
    • VIN Range From 3 V 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
    • DCDC3, DCDC4 ±5% Tolerance
    • LDO1 ±5% Tolerance
  • 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)

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Parametrics

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Part number Order Regulated outputs (#) Processor supplier Processor name Vin (Min) (V) Vin (Max) (V) Step-up DC/DC controller Step-down DC/DC controller LDO Step-up DC/DC converter Step-down DC/DC converter Iout (Max) (A) Iq (Typ) (mA) Features Shutdown current (Typ) (uA) Rating Operating temperature range (C) Configurability Package Group Package size: mm2:W x L (PKG)
TPS6521825 Order now 7     NXP     i.MX 8M Mini     2.2     5.5     0     0       1     5     1       Dynamic Voltage Scaling
Eco-mode
I2C Control
Over Current Protection
Power Good
Power Sequencing
Power Supply and System Monitoring
Thermal Shutdown
UVLO Adjustable    		   Catalog     -40 to 105     Factory programmable
Software configurable    		 VQFN | 48     48VQFN: 36 mm2: 6 x 6 (VQFN | 48)    
TPS650861 Order now 13     Various - configurable settings     Various - configurable settings     5.6     21     0     3     4     0     3     25     0.3     Comm Control
Dynamic Voltage Scaling
Enable
Enable Pin
I2C Control
Over Current Protection
Power Good
Power Sequencing
Synchronous Rectification
Thermal Shutdown
UVLO Fixed    		 65     Catalog     -40 to 85     Software configurable
User programmable    		 VQFN | 64     64VQFN: 64 mm2: 8 x 8 (VQFN | 64)    
TPS652170 Order now 9     Texas Instruments
Generic    		 AM335x
Generic    		 2.75     5.8     0     0     4     1     3     1.2     0.08     Comm Control
Dynamic Voltage Scaling
I2C Control
Power Good
Power Sequencing    		 6     Catalog     -40 to 105     User programmable     VQFN | 48     48VQFN: 36 mm2: 6 x 6 (VQFN | 48)