Step-up/Inverting (Dual/Triple) DC/DC Converter Lineup

* For technical terms on the list, please refer to "Application Note".
Thermal :Thermal shutdown circuit　Dischage :Auto-Discharge function　Shutdown :Shutdown function　Sequence :Power on sequence controllable

Part Number Control Input Voltage Range Output
Voltage Range		 Accuracy*1 Frequency Output Tr. Lx limit
Current*2		 IOUT Soft
Start		 Protection
Circuit		 Features Packages Data
Sheet
R1283x PWM (Step-up) 2.5V to 5.5V Ext. adjustable up to 20V ±1.5% 300kHz
700kHz
1.4MHz 		Int. 1.5A * * Latch type For CCD, LCD, AMOLED.
Dischage of the inverting. Sequence
 WLCSP-11-P2
DFN(PLP)2730-12		 Download
PWM (Inverting) Ext. adjustable up to V DD-20V ±25mV 1.5A
R1285L PWM (Step-up) 2.3V to 4.8V 4.6V, 4.8V, 5.0V ±1.5% 1.4MHz Int. 1A * * Latch type For AMOLED.
Sequence Dischage Shutdown		 DFN2730-12 Download
PWM (Inverting) -2.0V to -6.0V ±1.5% 1.5A
Ext. adjustable ±25mV
R1290K PWM (Step-up) 2.0V to 5.5V Ext. adjustable ±1.5% Ext. adjustable
(180kHz to 1.4MHz) 		Int. 2A * *
(Ext. adjustable)
 Latch type The charge pump operates
at one-fourth the frequency.
For CCD, LCD.
Sequence
 QFN0404-24 Download
Charge pump
(Step-up)		 ±25mV -
Charge pump
(Inverting)		 ±30mV -
*1 Lx limit current is different from output current. *2 For internal output transistor: This is an approximate value, because output current depends on conditions and external parts.
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