Buck-Boost Controllers (External FETs)

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Renesas' proprietary modulation scheme and algorithms allow the highly integrated buck-boost controllers to achieve the high reliability performance required for battery-powered equipment. Our bidirectional buck-boost controllers eliminate extra sensing circuitry and offer customers a robust feature-set that maintains battery health and superior power utilization.

Product Selection Table

Processing table

	PLP	Topology [Rail 1]	Outputs (#)	Input Voltage (Min) (V)	Input Voltage (Max) (V)	Output Voltage (Min) (V)	Output Voltage (Max) (V)	IQ	Switching Frequency Range (Typical) (kHz)	Output Per Driver UGATE Source\|Sink	Output Per Driver LGATE Source\|Sink	SYNCH Capability	Parallelable	Bi-direction	Control Type	Temp. Range	Lead Count (#)	Pkg. Type	Simulation Model Available
(6) Featured Products (0) Additional Products		Buck-Boost						120 uA (forward) 130 µA (forward) 45 µA 50 µA		2\|3	2\|3	No Yes	No Yes	No Yes	Current Mode Hysteretic Mode R3 modulator	-40 to 125°C		QFN TQFN TSSOP-EP	iSim
Part Number	Logical Operator	Logical Operator						Logical Operator		Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator	Logical Operator		Logical Operator	Logical Operator
ISL81401 PDF 40V Bidirectional 4- Switch Synchronous Buck-Boost Controller	N/A	Buck-Boost	1	4.5	40	0.8	40	50 µA	600	2\|3	2\|3	Yes	Yes	Yes	Current Mode	-40 to 125°C	32	QFN
ISL81401A PDF 40V Unidirectional 4-Switch Synchronous Buck-Boost Controller	2033 Dec	Buck-Boost	1	4.5	40	0.8	40	50 µA	600	2\|3	2\|3	No	No	No	Current Mode	-40 to 125°C	32	QFN
ISL81601 PDF 60V Bidirectional 4-Switch Synchronous Buck-Boost Controller	2033 Dec	Buck-Boost	1	4.5	60	0.8	60	50 µA	600	2\|3	2\|3	No	No	No	Current Mode	-40 to 125°C	32, 38	QFN, TSSOP-EP	iSim
ISL81801 PDF 80V Bidirectional 4-Switch Synchronous Buck-Boost Controller	2033 Dec	Buck-Boost	1	4.5	80	0.8	80	45 µA	600	2\|3	2\|3	No	No	No	Current Mode	-40 to 125°C	38, 32	TQFN, TSSOP-EP
ISL95338 PDF Bidirectional Buck-Boost Voltage Regulator	N/A	Buck-Boost	1	3.8	24	2	24	130 µA (forward)	620			No	No	Yes	R3 modulator		32	TQFN
RAA489800 PDF Bidirectional Buck-Boost Voltage Regulator	N/A	Buck-Boost	1	3.8	23	2	21	120 uA (forward)	620 - 1000			No	No	Yes	Hysteretic Mode		32	TQFN

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Documentation

Document title Title		Document type Type	Date Date
	AN1681: Grounding Techniques PDF 509 KB	Application Note	Jan 19, 2004
	AN1684: Nonideality of Ground PDF 397 KB	Application Note	Jan 19, 2004
	Industrial Power Management Brochure PDF 5.58 MB 日本語	Brochure	Dec 5, 2022
	USB Power Delivery Changes the Game PDF 617 KB 日本語 , 简体中文	White Paper	Nov 15, 2019
	Design Considerations for a Bidirectional DC/DC Converter PDF 759 KB 日本語 , 简体中文	White Paper	Oct 16, 2018
	Achieve up to 99% Efficiency in a Robust Battery Backup System Using a True Bidirectional Buck-Boost Controller PDF 351 KB 日本語 , 简体中文	White Paper	Sep 21, 2018
	Understanding USB-C Buck-Boost Battery Charging PDF 439 KB 简体中文	White Paper	Aug 14, 2018
	Inside a New Architecture for USB Type-C Applications PDF 320 KB	White Paper	Feb 9, 2018
8 items

Videos & Training

High-Performance 80V Buck-Boost and Dual-Phase Controllers

A brief overview of the highest-performance 80V DC/DC controllers and why they are the best solutions for data center servers, 48V telecom and rugged industrial equipment designs that require extra voltage margin.

Video List

High-Performance 80V Buck-Boost and Dual-Phase Controllers

High Voltage Buck Boost Controller