Packaging information
| Package | Pins VQFN (RSL) | 48 |
| Operating temperature range (°C) -40 to 105 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the TPS652170
- Charger and power path
- 2-A output current on power path
- Linear charger; 700-mA maximum charge current
- 20-V tolerant USB and AC inputs
- Thermal regulation, safety timers
- Temperature sense input
- Step-down converter (DCDC1, DCDC2,
DCDC3)
- Three step-down converter with integrated switching FETs
- 2.25-MHz fixed frequency operation
- Power-save mode at light-load current
- Output voltage accuracy in PWM mode ±2%
- 100% duty cycle for lowest dropout
- Typical 15-µA quiescent per converter
- Passive discharge to ground when disabled
- LDO regulators (LDO1, LDO2)
- Two adjustable LDOs
- LDO2 can be configured to track DCDC3
- Typical 15-µA quiescent current
- Load switches (LDO3, LDO4)
- Two independent load switches that can be configured as LDOs
- WLED driver
- Internally generated PWM for dimming control
- 38-V open-LED protection
- Supports two strings of up to 10 LEDs at 25 mA each
- Internal low-side current sinks
- Protection
- Undervoltage lockout and battery fault comparator
- Always-on push-button monitor
- Hardware reset pin
- Password protected I2C registers
- Interface
- I2C interface (address 0x24)
- Password-protected I2C registers
Description for the TPS652170
The TPS652170 is a single-chip power management IC (PMIC) specifically designed to power the AM335x ARM® Cortex®-A8 processor in portable and 5-V line-powered applications. The PMIC device provides a linear battery charger for single-cell Li-ion and Li-polymer batteries, dual-input power path, three step-down converters, four low-dropout (LDO) regulators, and a high-efficiency boost converter to power two strings of up to 10 LEDs each. The system can be supplied by any combination of USB port, 5-V AC adaptor, or Li-Ion battery. The device is characterized across a –40°C to +105°C temperature range which makes it suitable for industrial applications. Three high-efficiency 2.25-MHz step-down converters can providing the core voltage, memory, and I/O voltage for a system. The TPS652170 device comes in a 48-pin leadless package (6-mm × 6-mm VQFN) with a 0.4-mm pitch.