TPS65070 (ACTIVE)

Power Management IC (PMIC) with Battery Charger, 3 Step-down converters, and 2 LDOs

Power Management IC (PMIC) with Battery Charger, 3 Step-down converters, and 2 LDOs - TPS65070
 

Description

The TPS6507x family of devices are single-chip power management ICs (PMICs) for portable applications consisting of a battery charger with power path management for a single Li-Ion or Li-Polymer cell. The charger can either be supplied by a USB port on pin USB or by a DC voltage from a wall adapter connected to pin AC. Three highly efficient 2.25-MHz step-down converters are targeted at providing the core voltage, memory, and I/O voltage in a processor-based system. The step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.

For low noise applications the devices can be forced into fixed-frequency PWM using the I2C interface. The step-down converters allow the use of small inductors and capacitors to achieve a small solution size. The TPS6507x devices also integrate two general purpose LDOs for an output current of 200 mA. These LDOs can be used to power an SD-card interface and an always-on rail, but can be used for other purposes as well. Each LDO operates with an input voltage range from 1.8 V to 6.3 V allowing them to be supplied from one of the step-down converters or directly from the main battery. An inductive boost converter with two programmable current sinks power two strings of white LEDs.

The TPS6507x devices come in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch.

Features

  • Charger/Power Path Management:
    • 2-A Output Current on the Power Path
    • Linear Charger; 1.5-A Maximum Charge Current
    • 100-mA/500-mA/800-mA/1300-mA Current Limit From USB Input
    • Thermal Regulation, Safety Timers
    • Temperature Sense Input
  • 3 Step-Down Converters:
    • 2.25-MHz Fixed-Frequency Operation
    • Up to 1.5 A of Output Current
    • Adjustable or Fixed Output Voltage
    • VIN Range From 2.8 V to 6.3 V
    • Power Save Mode at Light Load Current
    • Output Voltage Accuracy in PWM Mode ±1.5%
    • Typical 19-µA Quiescent Current per Converter
    • 100% Duty Cycle for Lowest Dropout
  • LDOs:
    • Fixed Output Voltage
    • Dynamic Voltage Scaling on LDO2
    • 20-µA Quiescent Current
    • 200-mA Maximum Output Current
    • VIN Range From 1.8 V to 6.3 V
  • wLED Boost Converter:
    • Internal Dimming Using I2C
    • Up to 2 × 10 LEDs
    • Up to 25 mA per String With Internal Current Sink
  • I2C Interface
  • 10 Bit A/D Converter
  • Touch Screen Interface
  • Undervoltage Lockout and Battery Fault Comparator

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Parametrics Compare all products in Power Management Multi-Channel IC (PMIC) Solutions

 
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)
Operating Temperature Range (C)
Pin/Package
TPS65070 TPS65072 TPS65073 TPS650731
6    6    6    6   
Texas Instruments      Texas Instruments    Texas Instruments   
OMAP-L1xx
TMS320C674x   
  OMAP35xx    OMAP35xx   
1.8    1.8    1.8    1.8   
39    39    39    39   
0    0    0    0   
0    0    0    0   
2    2    2    2   
0    0    0    0   
3    3    3    3   
1.5    0.6    1.5    1.5   
0.08    0.08    0.08    0.08   
Comm Control
Power Good
Power Sequencing   
Comm Control
Power Good
Power Sequencing   
Comm Control
Power Good
Power Sequencing   
Comm Control
Power Good
Power Sequencing   
0.08    0.08    0.08    0.08   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
48VQFN    48VQFN    48VQFN    48VQFN