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RP601 Series
1A PWM/VFM Step-up/down DCDC Converter with Synchronous Rectifier

Product Specifications

The RP601 Series are CMOS-based PWM/VFM step-up/down DC/DC converters with synchronous rectifier. The RP601 automatically switches between step-up mode and step-down mode according to input voltage, output voltage and load current. The power controlling method can be selected from forced PWM control type or PWM/VFM auto switching control type by inputting a signal to the MODE pin. The forced bypass mode (PWM/VFM auto switching control, BP pin = H) is included which suppresses supply current below 5 µA. The output voltage is adjustable (50-mV step) using DVS (Dynamic Voltage Scaling) during operation. A 1.95-mm square compact WLCSP-16-P1 package is available.

FEATURES

Input Voltage Range (Maximum Rating) 2.3 V to 5.5 V (6.5V)
Supply Current Typ. 45 µA (VFM mode)
Standby Current Typ. 0.1 µA
Output Voltage Range 2.75 V to 4.2 V
Output Step Voltage Typ. 50 mV
Output Voltage Setting Single-wire (S-Wire) interface*1
Output Voltage Accuracy PWM mode = ±2%, VFM mode = PWM mode + 2%
Output Voltage Temperature Coefficient Typ. ±50 ppm/°C
Line Regulation Typ. 0.5% (PWM mode)
Load Regulation Typ. 0.5% at IOUT = 10 mA to 800 mA (PWM mode)
Maximum Output Current Typ. 1.0 A
Output Pulsed Current Max. 2.0 A
(t = 10 ms, On Duty = 0.1 (ton = 1 ms), VIN = 3.6 V, VSET = 3.3 V)
BULX Current Limit Typ. 4.0 A
Oscillator Frequency Typ. 2.4 MHz
Built-in Driver ON Resistance Typ. Pch. 80 mΩ, Nch. 80 mΩ (VIN = 3.6V)
Quiescent Current in Forced Bypass Mode Typ. 5 µA
UVLO Detector Threshold Typ. 2.1 V
Soft Start Time Typ. 350 µs (VOUT=3.3V)
Function Power Good Function
Thermal Shutdown Circuit Stops at 140°C
Package WLCSP-16-P1, 1.95 mm x 1.95 mm

*1 The default set output voltage (Default VSET) is set by Fix Trimming (selectable from 2.75 V to 4.20 V in 0.05 V step)

APPLICATION INFORMATION

RP601Z

CINP: 22µFx1, COUT: 22µFx2

TYPICAL CHARACTERISTICS

RP601Z330A Efficiency vs. Output Current

PIN DESCRIPTION

WLCSP-16-P11.95 mm × 1.95 mm

WLCSP-16-P1

C3,C4 BOLX
B3,B4 BULX
D1 PG
C1 CE
B1 BP
A1 MODE
D3,D4 VOUT
A3 AVIN
A4 PVIN
A2,B2,C2,D2 GND

RP601 Series for Consumer

APPLICATIONS

  • Power source for portable equipment such as laptops, PDAs, DSCs, cellular phones and smartphones
  • Power source for Li-ion battery-used equipment

PRODUCT LONGEVITY PROGRAM

RP601 series 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

Product Name   Package Quantity per Reel
RP601Zxxx#-E2-F ConsumterPLP WLCSP-16-P1 5,000
  • xxx … Specify the default set output voltage (Default VSET) from 2.75 V (275) to 4.20 V (420) in 0.05 V step.
  • # … Specify the auto-discharge option.
    A: Auto-discharge function included
    B: Auto-discharge function not included

DOCUMENT/CONTACT

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Technical Support

Package *1 Marking Reliability *2
WLCSP-16-P1 RP601Z RP601Z

*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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