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.