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RP516 Series

0.3V Low Output Voltage Low Quiescent Current 100mA Buck DC/DC Converter

  • Consumer
  • PLP
  • RoHS

RP516 is a low-voltage resistance buck DC/DC converter featuring ultra-low 0.3 µA quiescent current and 0.3 V output voltage. Suitable for wearable and IoT devices which require long-life batteries and downsizing.

  • Ultra-low consumption current (IQ: 0.3 µA) with the VFM control for DC/DC (switching frequency: 1 MHz max.)
  • Suitable for low power devices due to its ultra-low output voltage range from 0.3 V to 1.2 V
  • Suitable for coin batteries and USB ports due to its wide input range from 1.8 V to 5.5 V
  • Selectable 3 packages: WLCSP, DFN and SOT. Suitable for IC cards due to WLCSP’s thickness of 0.4 mm and less.

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 Typ. 0.3 µA
Output Voltage Range 0.3 V to 1.2 V (0.1 V step)
Output Voltage Accuracy ±18 mV (Ta = 25°C)
Output Current 100 mA
Driver ON-resistance Typ. PMOS 0.15 Ω, NMOS 0.15 Ω (RP516Z)
Oscillator Frequency Typ. 1 MHz
Package WLCSP-8-P1, DFN(PLP)2527-10, SOT-89-5

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 = 0.5 V)

Efficiency vs. Output Current (VOUT = 0.5 V)

Introduction Video

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
  • plpP
WLCSP-8-P1 RP516Z RP516Z-F
  • gradeConsumerC
  • plpP
DFN(PLP)2527-10 RP516K RP516K
  • gradeConsumerC
  • plpP
SOT-89-5 RP516H RP516H-FE

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Please contact us or our distributors for unpublished reliability information.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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