TPS65070_15 Datasheet, PDF (1/98 Pages) Texas Instruments – Single Chip Power Solution for Battery Powered Systems

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TPS65070, TPS65072
TPS65073, TPS650731, TPS650732
SLVS950H – JULY 2009 – REVISED SEPTEMBER 2015
TPS65070x Single Chip Power Solution for Battery Powered Systems
1 Features
•1 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
– V_IN 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
– V_IN 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
2 Applications
• Portable Navigation Systems
• PDAs, Pocket PCs
• OMAP™ and Low Power DSP Supplies
3 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65070x
VQFN (48)
6.00 mm × 6.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
TPS6507x
AC
BAT
USB
Charger and
Power Path
Memory
DCDC1
DCDC2
DCDC3
LDO1
LDO2
wLED
Boost and
DRV
Memory
CORE
Processor or FPGA
Peripheral
and Interface
Peripheral
and Interface
1
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.