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RP514 Series

Low Power Consumption 100mA Buck DC/DC Converter with Battery Monitor

  • Consumer
  • PLP
  • RoHS

The RP514 is a buck DC/DC converter with a Battery Monitor (BM) featuring ultra-low current and low-voltage resistance. The battery monitor divides the input voltage (VIN) into 1/3 or 1/4 to a buffer output and inputs a signal directly into the MCU’s built-in low voltage AD converter without external circuits. It is suitable for use in wearable and IoT devices that require miniaturization and long-lifetime of battery.

  • Ultra-low consumption current (IQ: 0.3 µA) with the VFM control for DC/DC (switching frequency: 1 MHz max.)
  • High efficiency under light load conditions: 90% with 1.8 V and 100 mA
  • Reducing components and space by combining DC/DC and BM into a single chip
  • Suitable for coin batteries and USB ports due to its wide input voltage range from 1.8 V to 5.5 V

Specs & Datasheets

Input Voltage Range 1.8 V to 5.5 V (6.5 V)
Operating Temperature Range -40°C to 85°C (125°C)
Standby Current Typ. 0.01 µA
Operating Quiescent Current DC/DC Section: Typ. 0.3 µA
BM Section: Typ. 0.1 µA
Output Voltage Range 1.0 V to 4.0 V (0.1 V step)
Output Voltage Accuracy ±1.5% (Ta = 25°C)
Output Current 100 mA
Oscillator Frequency Typ. 1 MHz
Package WLCSP-9-P2, DFN(PLP)2527-10
BM Output Voltage VIN /3 (RP514xxx3x)
VIN /4 (RP514xxx4x)
BM Output Voltage Accuracy ±30 mV

Download Datasheet

Protections / Functions

Functional Description

TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust

Technical Documents

Typical Application

Typical Application

Efficiency vs. Output Current (VOUT = 1.8 V)

Efficiency vs. Output Current (VOUT = 1.8 V)

Introduction Video

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
  • plpP
WLCSP-9-P2 RP514Z RP514Z-F
  • gradeConsumerC
  • plpP
DFN(PLP)2527-10 RP514K RP514K

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
ILX LX Current Limit Function
OCP Overcurrent Protection
OVP Overvoltage Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Reverse Reverse Current Protection Circuit
Shutdown Shutdown Function
Soft Start Soft Start Function
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Function
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty Maximum Duty Cycle
Ext. Phase Externally Adjustable Phase Compensation
LED Adjust LED High-speed Dimming Control

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