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MP5414
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Description
The MP5414 is a highly-efficient fully-integrated PMU with a current-mode step-up converter, four single-pole/double-throw switches, low drop-out, and a battery charger designed for battery-powered supply applications.? The step-up converter can start-up from an input voltage as low as 1.8V. It uses a current-limited variable-frequency control algorithm to optimize efficiency and minimize external component size and cost. The internal low-resistance N-Channel MOSFET switch can withstand up to 10V, allowing the MP5414 to produce a high output voltage with high efficiency from a dual-cell NiCd/NiMH or single-cell Li-ion battery. In addition, the step-up converter can disconnect all loads from the input DC power supply.?The charger features constant-current and constant-voltage charging modes with a programmable charge current (50mA to 300mA), trickle-charge capability, and a charge-status indicator. Charging is enabled with an input voltage greater than 3.5V, and is disabled when unplugged from the AC adaptor. The charger does not need an external reverse-blocking diode.?The low-dropout linear regulator operates with low noise from a 2.7V-to-6.5V input voltage, and regulates the output voltage with 2% accuracy from 1.25V to 5V. The MP5414 is available in a 4mm x 5mm 28-pin QFN package.
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Features & Benefits
- 1.8V Low Voltage Start-Up
- 1.8V to 5.5V Input Range
- Output Disconnect
- Integrated Power MOSFET and Schottky Diode
- Variable Frequency Control
- Current Mode Control with Internal Compensation
- Inrush Current Limiting and Internal Soft-Start
- Input Under-Voltage Lockout
- 0.75% VBATT Accuracy
- Low Reverse-Battery Current (< 1µA)
- Programmable Charge Current
- Charge Status Indication
- No External Sense Resistor
- No External Reverse Blocking Diode
- Low 100mV Dropout at 100mA Output
- Programmable Output Voltage with 2% Accuracy
- Up to 6.5V Input Voltage
- High PSRR: 70dB at 1kHz
- Better Than 0.001%/mA Load Regulation
- Stable With Low-ESR Output Capacitor
Active Part Numbers:
MP5414DV-LF-P MP5414DV-LF-Z
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MP5414 Resources
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POWER MANAGEMENT IC (PMIC)PRODUCT CATEGORY -
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