RN5T614
POWER MANAGEMENT SYSTEM DEVICE

Document Download

• RN5T614(RN5T614)

• Layout Guide(RN5T614)

Features

System

• Thermal Shutdown Function
• Reset Detector Function
• UVLO Function
• I2C-Bus Interface @400kHz (Input voltage range: 1.7V-3.4V)

High Efficiency Step-down DC/DC Converters

• DC/DC11.20V (0.9V to 1.5V/12.5mV steps) @1200mA with RAMP control (For Core)
• DC/DC21.15V (0.9V to 1.5V/12.5mV steps and 1.8V) @1000mA with RAMP control (For Logic)
• DC/DC31.8V (1.8V to 3.3V by external resistors) @500mA (For Memory)
• DC/DC on/off control pin for DC/DC1 and DC/DC2

Low Drop Voltage Regulators

• LDO13.0V (Always-on) @10mA
• LDO21.2V (0.9V/1.0V/1.1V/1.2V/1.3V) @30mA
• LDO31.2V (0.9V/1.0V/1.1V/1.2V/1.3V) @30mA
• LDO43.3V (1.8V/2.5V/2.6V/2.8V/2.85V/3.0V/3.3V) @300mA
• LDO51.8V (1.8V/2.5V/2.6V/2.8V/2.85V/3.0V/3.3V) @300mA
• LDO62.6V (1.2V/1.8V/2.5V/2.6V/2.8V/2.85V/3.0V/3.3V) @150mA
• LDO73.0V (1.2V/1.8V/2.5V/2.6V/2.8V/2.85V/3.0V/3.3V) @150mA
• LDO83.3V (1.8V/2.5V/2.6V/2.8V/2.85V/3.0V/3.3V) @150mA

Li-ion Battery Charger

• Support AC adapter charging
• With the current limit protection and charge current control, the limited power can be efficiently supplied to the system and the battery.
• The system can power on even when Li-ion Battery is low voltage or open.
• The device can withstand up to 6.5V on VCHG pin. However, it can withstand high voltage by combining a high voltage protection IC (up to 28V by using BD6040 of ROHM).
• Rapid timer and Trickle timer integrated.
• Monitor for the battery thermistor built in.
• No external MOSFET required.
• If system loads over AC adapter current rating, the battery will supply the current to the system.
• Chip temperature detection circuit for over temperature protection integrated.

Package

• QFN0606-48

Process

• CMOS

Applications

• Portable Device (Tablet, Smart Phone, MID, GPS-PND etc.)
• Information Appliance (STB, HDMI-Dongle etc.)