Maxim Integrated MAX8969EWL42+T Switching Voltage Regulators 1A Boost Converter with Track mode in a tiny WLP Package

Product Attribute	Attribute Value
Manufacturer:	Maxim Integrated
Product Category:	Switching Voltage Regulators
RoHS:	Details
Mounting Style:	SMD/SMT
Package / Case:	WLP-9
Topology:	Boost
Input Voltage, Min:	2.5 V
Input Voltage, Max:	5.5 V
Series:	MAX8969
Packaging:	Reel
Brand:	Maxim Integrated
Product Type:	Switching Voltage Regulators
Factory Pack Quantity: Factory Pack Quantity:	2500
Subcategory:	PMIC - Power Management ICs
Type:	Voltage Converter
Part # Aliases:	MAX8969

The MAX8969 is a simple 1A step-up converter in a small package that operates in any single-cell Li-ion application.This IC provides protection features such as input undervolt age lockout, short circuit, and overtemperature shutdown. The IC transitions to skip mode seamlessly under light load conditions to improve efficiency. Under these condi tions, switching occurs only as needed, reducing switchingfrequency and supply current to maintain high efficiency.  For higher efficiency when input voltage is closer to the output voltage, two special modes of operation are available: track and automatic track. These modes allow users to balance quiescent current (IQ) vs. transient response time into boost mode. In both modes, the p-channel MOSFET acts as a current-limited switch such that VOUT follows VIN. However, in track mode, the boost circuitsare disabled and the system controls the boost function with the EN, TREN inputs (IQ = 30µA). In automatic track mode (ATM), the boost circuits are enabled and the device automatically transitions into boost mode when VIN falls to 95% of the target VOUT (IQ = 60µA).The IC is available in a small, 1.25mm x 1.25mm, 9-bump WLP (0.4mm pitch) package.  • Cell Phones • Smartphones • Mobile Internet Devices • GPS, PND • eBooks • Flexible System Integration • Up to 1A Output Current • 2.5V to 5.5V Input Voltage Range • 3.3V to 5.5V Output Voltage Options • Integrated Protection Increases System Robustness • Undervoltage Lockout (UVLO) • Short-Circuit Protection • Overtemperature Shutdown • High Efficiency and Low Quiescent Current Extends • Over 90% Efficiency with Internal Synchronous • 60µA IQ in Automatic Track Mode • 45µA IQ in Step-Up Mode • 30µA IQ in Track Mode • 1µA Shutdown Current • Skip Mode Under Light Load Condition Improves • True Shutdown™ Prevents Current Flow from OUT_ to LX_ • Soft-Start Limits Inrush Current to 480mA • Small Package and High Frequency Operation • 9-Bump 1.25mm x 1.25mm WLP Package • 3MHz PWM Switching Frequency • Small External Components