NXE2000: 5 DC/DC, 12 LDO, Li-Ion Battery Charger, Fuel Gauge and USB Charger
Overview
NXE2000 is the power management IC for GPS-PND/MID and Smart devices.
It integrates five high-efficiency step-down DCDC converters, twelve low dropout regulators, power control logic, Li-ion Battery Charger, I2C Bus interface, voltage detections, thermal shut-down and etc.
NXE2000 Block diagram
Features
System
• I2C Bus Interface @ 3.4Mhz and 400Khz
• Detector Function (System/IO/Battery-Voltage-detector, UVLO)
• Thermal Shutdown Function
• Watchdog timer
• Power on key input for System's power up, Power on reset output for CPU
High Efficiency Step-down DC/DC Converters
• 5 Channels
• DCDC1/2/3 Max 4000mA
• DCDC4/5 Max 2000mA
Low Drop Voltage Regulators
• LDO1-4 with ECO, Max 300mA
• LDO5-6 with ECO, Max 300mA
• LDO7-10, Max 200mA
• LDORTC1, Max 10mA
• LDORTC2, Max 10mA
• Over current protection and Short circuit protection
Li-ion Battery Charger
• Supports AC adapter charging and USB charging in an individual port.
• With the current limit protection and charge current control.
• The system can power on even when Li-ion Battery is low voltage or open.
• Rapid timer and Trickle timer.
• Power-path control.
• Over temperature protection
Fuel Gauge
• 2-bit resolution.
• 1 second integration.
Peripherals
• 12-bit resolution A/D converter
• 5ch GPIOs
• Real-Time Clock (RTC)
• Interrupt Controller]
Package : CSP0608-80(0.65mm pitch)