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RP512 Series
0.3µA IQ Low Quiescent Current 300mA Buck DCDC Converter with Synchronous Rectifier

Product Specifications

RP512 is a buck DCDC converter featuring 0.3 µA ultra-low operating quiescent current. It is suitable for use in wearable and IoT devices that require miniaturization and long-lifetime of battery.

  • VFM (fSW up to 1 MHz) control achieves 0.3 µA ultra-low operating quiescent current.
  • The wide range of VIN from 2.0 V to 5.5 V allows operation from coin cell to USB port.
  • Total mount area including CIN, COUT, and inductor is 10.6 mm2.
  • Selectable packages including WLCSP, DFN, and SOT. 0.4 mm-thickness WLCSP package adaptable to IC cards.

FEATURES

Input Voltage Range (Maximum Rating) 2.0 V to 5.5 V (6.5V)
Operating Quiescent Current (IQ) 0.3 µA
Standby Current 0.01 µA
Output Voltage Range 1.0 V to 4.0 V (Settable in 0.1 V step)
Output Voltage Accuracy ±1.5% (VSET ≥ 1.2 V), ±18 mV (VSET < 1.2 V)
Maximum Output Current 300 mA
Built-in Driver On-resistance (VIN = 3.6 V) Typ. PMOS 0.15 Ω, NMOS 0.15 Ω (RP512Z)
Protection Function UVLO
Packages WLCSP-8-P1, DFN(PLP)2527-10Under Development, SOT-89-5Under Development

APPLICATION INFORMATION

L: 2.2 µH, CIN: 10 µF, COUT: 22 µF

TYPICAL CHARACTERISTICS

Efficiency vs. Output Current (VOUT = 1.8 V)

PIN DESCRIPTION

WLCSP-8-P1

WLCSP-8-P11.45 mm × 1.48 mm
A1 VIN
B1 VIN
C1 LX
A2 VOUT
C2 GND
A3 CE
B3 GND
C3 GND

DFN(PLP)2527-10Under Development

DFN(PLP)2527-102.7 mm × 2.5 mm
1 VOUT
2 GND
3 GND
4 LX
5 LX
6 VIN
7 VIN
8 NC
9 CE
10 NC

*) The tab is substrate level (GND).

SOT-89-5Under Development

SOT-89-54.5 mm × 4.35 mm
1 VOUT
2 GND
3 LX
4 VIN
5 CE

RP512 Series for Consumer

APPLICATIONS

  • Wearable equipment such as SmartWatch, SmartBand, and health monitoring
  • Li-ion battery-used equipment, Coin cell-used equipment
  • Low power RF such as Bluetooth® Low Energy, Zigbee, WiSun, and ANT
  • Low power CPU, memory, sensor devices, and energy harvesting

PRODUCT LONGEVITY PROGRAM

RP512Z operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The set output voltage, the auto-discharge function, and the package for the ICs are user-selectable options.

Product Name   Package Quantity per Reel
RP512Zxx1$-TR-F ConsumterPLP WLCSP−8−P1 5,000
RP512Kxx1$-TRUnder Development Consumter DFN(PLP)2527-10 5,000
RP512Hxx1$-T1-FEUnder Development Consumter SOT-89-5 1,000
  • xx … Designation of the set output voltage (VSET)
    For Fixed Output Voltage Type: 1.0 V (10) to 4.0 V (40) in 0.1 V step (The customization of specifying in 0.05 V step is available.)
  • $ … Designation of Version
    C: without auto-discharge function
    D: with auto-discharge function

* Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.

DOCUMENT/CONTACT

Purchase

Technical Support

Package *1 Marking Reliability *2
WLCSP-8-P1 RP512Z RP512Z
DFN(PLP)2527-10 RP512K RP512K
SOT-89-5 RP512H RP512H

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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