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
– 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

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.