MAX8969EWL50+T

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Series Information for MAX8969EWL50+T - Maxim Integrated

Features

  • feature
    1u00b5A Shutdown Current
  • feature
    2.5V to 5.5V Input Voltage Range
  • feature
    3.3V to 5.7V Output Voltage Options
  • feature
    30u00b5A IQ in Track Mode
  • feature
    3MHz PWM Switching Frequency
  • feature
    45u00b5A IQ in Step-Up Mode
  • feature
    60u03bcA IQ in Automatic Track Mode
  • feature
    9-Bump 1.25mm x 1.25mm WLP Package
  • feature
    Flexible System Integration
  • feature
    High Efficiency and Low Quiescent Current Extends Battery Life
  • feature
    Integrated Protection Increases System Robustness
  • feature
    Over 90% Efficiency with Internal Synchronous Rectifier
  • feature
    Overtemperature Shutdown
  • feature
    Short-Circuit Protection
  • feature
    Skip Mode Under Light Load Condition Improves Efficiency
  • feature
    Small External Components
  • feature
    Small Package and High Frequency Operation Reduce Board Space
  • feature
    Soft-Start Limits Inrush Current to 480mA
  • feature
    True Shutdownu2122 Prevents Current Flow from OUT_ to LX_
  • feature
    Undervoltage Lockout (UVLO)
  • feature
    Up to 1A Output Current

Description

DC/DC CONV BOOST 3MHZ 85DEG C
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 switching frequency 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 avail- able: 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 circuits are disabled and the system controls the boost func- tion 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.

Specifications

Topology:
Boost (Step Up)
Input Voltage Min:
2.5V
Input Voltage Max:
5.5V
DC / DC Converter IC Case:
WLP
No. of Pins:
9Pins
Output Current:
1A
Output Voltage Nom.:
5V
Switching Frequency:
3MHz
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

Conv DC-DC Single-OUT Step Up 2.5V to 5.5V 9-Pin WLP T/R

Avnet Europe

Conv DC-DC Single-OUT Step Up 2.5V to 5.5V 9-Pin WLP T/R

Avnet Asia

Conv DC-DC Single-OUT Step Up 2.5V to 5.5V 9-Pin WLP T/R