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RP519 Series

0.5A/1A 6MHz PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier

  • Consumer
  • RoHS

The RP519 is a low supply current CMOS-based PWM/VFM step-down DC/DC converter with synchronous rectifier featuring 0.5 A / 1 A output current*1.

Output voltage controlling method is selectable between a forced PWM control type and a PWM/VFM auto-switching control type, and can be set by the MODE pin. Output voltage type is selectable between an internally fixed output voltage type and an externally adjustable output voltage type.

Protection circuits in the RP519 is current limit circuit and thermal shutdown circuit. LX current limit value (Typ.) is selectable between 1.6 A and 1.0 A.

The RP519 is available in WLCSP−6−P8 which achieves high-density mounting on boards. Using capacitor of 0402- / 1005-size (inch / mm) and inductor of 0603- /1608-size (inch / mm) as external parts help to save space for devices.

*1: This is an approximate value. The output current is dependent on conditions and external components.

Specs & Datasheets

  Consumer
Input Voltage Range 2.3 V to 5.5 V (6.5 V)
Operating Temperature Range -40°C to 85°C (125°C)
Supply Current Typ. 15 µA
Standby Current Typ. 0 µA
Output Voltage Range Internally Fixed Ver.: 0.6 V to 3.3 V (0.1 V step)
Externally Adjustable Ver.: 0.6 V to 5.5 V
Output Voltage Accuracy ±1.5% (VSET ≥ 1.2 V, Ta = 25°C), ±18 mV (VSET < 1.2 V)
Output Voltage Temperature Coefficient ±100 ppm/°C
Feedback Voltage 0.6 V
Feedback Voltage Accuracy ±9 mV
Feedback Voltage Temperature Coefficient ±100 ppm/°C
Output Current 1 A
Driver ON-resistance Typ. Pch. 0.175 Ω, Nch. 0.155 Ω (VIN = 3.6 V)
Oscillator Frequency Typ. 6 MHz
Maximum Duty Cycle Min. 100%
Package WLCSP-6-P8

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

RP519ZxxXA/B Typical Application (Fixed Output Voltage Type)

RP519ZxxXA/B Typical Application (Fixed Output Voltage Type)

CIN: 4.7 µF
COUT: 10 µF
L: 0.47 µH

RP519Z00XC/D Typical Application (Adjustable Output Voltage Type)

RP519Z00XC/D Typical Application (Adjustable Output Voltage Type)

CIN: 4.7 µF
COUT: 10 µF
L: 0.47 µH

RP519Z Efficiency vs. Output Current: VOUT=1.8V, VMODE = "L" PWM/VFM Auto Switching

RP519Z Efficiency vs. Output Current: VOUT=1.8V, VMODE =

RP519Z Efficiency vs. Output Current: VOUT=3.3V, VMODE = "L" PWM/VFM Auto Switching

RP519Z Efficiency vs. Output Current: VOUT=3.3V, VMODE =

Quality & Packages

Product Name Compatibility Package Marking Reliability
RP519Zxxxx-E2-F
  • gradeConsumerC
WLCSP-6-P8 RP519Z RP519Z-F

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

Search for similar products under conditions below.

Category:DC/DC Switching Regulators

Topology Buck
VIN
min (V)
2.3
VIN
max (V)
5.5
VOUT
min (V)
0.6
VOUT
max (V)
5.5
IOUT
(mA)
1000
ISS
(µA)
15