DC/DC Converters

DC/DC converters are the power supply that output a fixed voltage efficiently, converting the input voltage. There are three types of DC/DC converters, step-up DC/DC converters, step-down DC/DC converters, and step-up/down DC/DC converters, Multi channel DC/DC converters. They respond to cus to mer needs lining up four types of control. PWM controlled types are highly efficient and excel in the ripple and the noise of Output voltage . PFM controlled types consume only a little power even if operated all the time, especially when lightly loaded. PWM /PFM switchable types work at PFM control when loaded lightly and switch to PWM control when loaded heavily, automatically.

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Step-up

Series	Control	Efficiency	Min Input Voltage (V)	Max Input Voltage (V)	Min Output Voltage (V)	Max Output Voltage (V)	Max Output Current (mA)	Oscillation Frequency	Package	Pdf
XC6367	PWM	84%	0.9	10	1.5	6.5	1000	300,100kHz/180,500kHz	SOT-25
XC6368	PWM/PFM	84%	0.9	10	1.5	6.5	1000	300,100kHz/180,500kHz	SOT-25
XC6371	PWM	85%	0.9	10	2	7	100	50,100,180kHz	SOT-89 SOT-89-5 USP-6B
XC6372	PWM/PFM	85%	0.9	10	2	7	100	50,100,180kHz	SOT-89 SOT-89-5 USP-6B
XC6373	PWM	82%	0.9	10	2	7	100	30kHz	SOT-89 SOT-89-5 USP-6B
XC9101	PWM	87%	2.5	20	2.2	30	1500	100-600kHz	MSOP-8A SOP-8
XC9103	PWM	85%	0.9	10	1.5	30	1000	180,300kHz/100kHz,500kHz	SOT-25 USP-6B
XC9104	PWM/PFM	85%	0.9	10	1.5	30	1000	180,300kHz/100kHz,500kHz	SOT-25 USP-6B
XC9105	PWM/PFM	85%	0.9	10	1.5	30	1000	180,300kHz/100kHz,500kHz	SOT-25 USP-6B
XC9106	PWM	85%	0.9	10	1.5	30	1000	100/300kHz	SOT-25 USP-6B
XC9107	PWM/PFM	85%	0.9	10	1.5	30	1000	100/300kHz	SOT-25 USP-6B
XC9110	PFM	87%	0.9	10	1.5	7	100	100kHz	SOT-23 SOT-25 SOT-89 USP-6C
XC9111	PFM	87%	0.9	10	1.5	7	100	100kHz	SOT-23 SOT-25 SOT-89 USP-6C
XC9116	PWM	86%(XC9116B) 84%(XC9116D)	2.5	6	8	18	20	1MHz	SOT-25 USP-6B
XC9119	PWM	86%	2.5	6	10	18	100	1MHz	SOT-25 USP-6C
XC9120	PWM/PFM	85%	0.9	6	1.5	30	80	100kHz	SOT-25 USP-6C
XC9121	PWM/PFM	85%	0.9	6	1.5	30	80	100kHz	SOT-25 USP-6C
XC9122	PWM/PFM	85%	0.9	6	1.5	30	80	100kHz	SOT-25 USP-6C
XC9128	1A Driver Transistor Built-In	93%	0.8	6	1.8	5.3	500	1.2MHz(Fixed oscillation frequency accuracy ±15%)	USP-10B MSOP-10 SOP-8
XC9129	1A Driver Transistor Built-In	93%	0.8	6	1.8	5.3	500	1.2MHz(Fixed oscillation frequency accuracy ±15%)	USP-10B MSOP-10 SOP-8

Step-down

Series	Control	Efficiency	Min Input Voltage (V)	Max Input Voltage (V)	Min Output Voltage (V)	Max Output Voltage (V)	Max Output Current (mA)	Oscillation Frequency	Package	Pdf
XC6365	PWM	92%	2.2	10	1.5	6	1000	300kHz/180,500kHz (custom possible)	SOT-25 USP-6C
XC6366	PWM/PFM	92%	2.2	10	1.5	6	1000	300kHz/180,500kHz (custom possible)	SOT-25 USP-6C
XC9201	PWM	93%	2.5	20	1.2	16	1500	Selectable using external components 100~600kHz	MSOP-8A
XC9206	PWM	92%	1.8	6	0.9	4	400	300,600kHz,1.2MHz	SOT-25
XC9207	PWM/PFM	92%	1.8	6	0.9	4	400	300,600kHz,1.2MHz	SOT-25
XC9208	PWM/PFM	92%	1.8	6	2	6	400	300,600kHz,1.2MHz	SOT-25
XC9210	PWM/PFM	95%	2	10	0.9	6	2000	300,500kHz,1.0MHz	MSOP-8A
XC9213	PWM/PFM	93%	4	25	1.5	15	5000	300kHz	TSSOP-16
XC9220	PWM	92%	2.8	16	1.2	-	3000	300kHz, 500kHz,1.0MHz	SOT-25 USP-6C
XC9221	PWM/PFM	92%	2.8	16	1.2	-	3000	300kHz, 500kHz,1.0MHz	SOT-25 USP-6C
XC9223	PWM/PFM	94%	2.5	6	0.9	6	1000	1MHz,2MHz	MSOP-10 USP-10 SOP-8
XC9224	PWM/PFM	94%	2.5	6	0.9	6	1000	1MHz,2MHz	MSOP-10 USP-10 SOP-8
XC9235	PWM/PFM	92%	2	6	0.8	4	600	1.2MHz,3.0MHz	SOT-25 USP-6C
XC9236	PWM/PFM	92%	2	6	0.8	4	600	1.2MHz,3.0MHz	SOT-25 USP-6C
XC9237	PWM/PFM	92%	2	6	0.8	4	600	1.2MHz,3.0MHz	SOT-25 USP-6C

Step-up/down

Series	Control	Efficiency	Min Input Voltage (V)	Max Input Voltage (V)	Min Output Voltage (V)	Max Output Voltage (V)	Max Output Current (mA)	Oscillation Frequency	Package	Pdf
XC9301	PWM	78%	2	10	2.4	6	250	180,300kHz	SOT-25
XC9302	PWM/PFM	78%	2	10	2.4	6	250	180,300kHz	SOT-25
XC9303	PWM/PFM	84%	2	10	2	6	800	300kHz	MSOP-8A

Multi channel

Series	Components	Control	Efficiency	Min Input Voltage (V)	Max Input Voltage (V)	Min Output Voltage (V)	Max Output Voltage (V)	Max Output Current (mA)	Oscillation Frequency	Package	Pdf
XC9501	Step-Up + Step-Up	PWM,PWM/PFM	83%	0.9	10	1.5	30	500	100kHz 180kHz 300kHz 500kHz	MSOP-10 USP-10
XC9502	Step-Up ------------------ Step-Down	PWM,PWM/PFM	83% ---------- 92%	2	10	1.5	30	500	100kHz 180kHz 300kHz 500kHz	MSOP-10 USP-10
XC9503	Step-Down + Step-Down	PWM,PWM/PFM	92%	2	10	0.9	6	1000	100kHz 180kHz 300kHz 500kHz	MSOP-10 USP-10
XC9504	Step-Up ------------------ Inverting	PWM, PWM/PFM	83% ---------- 76%	2	10	1.5	30	500	100kHz 180kHz 300kHz 500kHz (custom possible)	MSOP-10 USP-10
XC9505	Step-Down + Step-Down	PWM,PWM/PFM	92% ---------- 76%	2	10	0.9	6	1000	100kHz 180kHz 300kHz 500kHz	MSOP-10 USP-10
XC9508	Step-Down + Step-Down	LDO	90%	2.4	6	1.6	4	600	300kHz, 600kHz, 1.2MHz	MSOP-10 USP-10
XC9509	Step-Down + Step-Down	LDO	90%	2.4	6	0.9	4	600	300kHz, 600kHz, 1.2MHz	MSOP-10 USP-10
XC9510	Step-Down + Step-Down	LDO	90%	2.4	6	1.6	4	800	300kHz, 600kHz, 1.2MHz	SOP-8
XC9511	Step-Down + Step-Down	LDO	90%	2.4	6	0.9	4	800	300kHz, 600kHz, 1.2MHz	SOP-8
XCM517 NEW	Step-Down + Step-Down	PWM/PFM	Nch FET Pch FET	2.7	6	0.8	4	600	1.2MHz 3.0MHz	USP-12B01

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