PART NO.	PRICE		STOCK	MANUFACTURE	DESCRIPTION	Mounting Style	Package / Case	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging	Output Current	Output Voltage	Switching Frequency	Number of Outputs	Input Voltage MAX	Topology	Input Voltage MIN
TPS54231D	1+ $1.750 10+ $1.570 25+ $1.490 100+ $1.260	PDF RFQ	1,968 In-stock	Texas instruments	Switching Voltage Regulators 28V,2A Current Mode Nonsynch Buck	SMD/SMT	SOIC-8	- 40 C	+ 150 C	TPS54231	Tube	2 A	0.8 V to 25 V	570 kHz	1 Output	28 V	Buck	3.5 V
TPS54232D	1+ $1.750 10+ $1.570 25+ $1.490 100+ $1.260	PDF RFQ	890 In-stock	Texas instruments	Switching Voltage Regulators 2A,28V,1MHz Step Down SWIFT DC/DC	SMD/SMT	SOIC-8	- 40 C	+ 150 C	TPS54232	Tube	2 A	Adj	1 MHz	1 Output	28 V	Buck	3.5 V
MAX1775EEE+	1+ $9.400 10+ $8.940 25+ $6.270 50+ $5.960	PDF RFQ	191 In-stock	Maxim Integrated	Switching Voltage Regulators Dual-Out Step-Down for PDA/Palmtop	SMD/SMT	QSOP-16	- 40 C	+ 85 C	MAX1775	Tube	2 A	1.25 V to 5.5 V	1.25 MHz	2 Output	28 V	Buck	2.7 V
MAX16974AUE/V+	1+ $9.340 10+ $8.890 25+ $6.570 50+ $6.260	PDF RFQ	158 In-stock	Maxim Integrated	Switching Voltage Regulators 28V 2A 2MHz Step Down	SMD/SMT	TSSOP-16	- 40 C	+ 125 C	MAX16974	Tube	2 A	1 V to 10 V	220 kHz to 2.2 MHz		28 V	Buck	3.5 V
TPS54286PWP	1+ $4.860 10+ $4.360 25+ $4.200 100+ $3.580	PDF RFQ	142 In-stock	Texas instruments	Switching Voltage Regulators 2A Non-Synch Buck Converter	SMD/SMT	HTSSOP-14	- 40 C	+ 85 C	TPS54286	Tube	2 A	0.8 V to 25.2 V	600 kHz	2 Output	28 V	Buck	4.5 V
TPS54383PWP	1+ $3.300 10+ $2.960 25+ $2.850 100+ $2.430	PDF RFQ	81 In-stock	Texas instruments	Switching Voltage Regulators 3A Non-Synch Buck Converter	SMD/SMT	HTSSOP-14	- 40 C	+ 125 C	TPS54383	Tube	2 A	0.8 V to 25.2 V	300 kHz	2 Output	28 V	Buck	4.5 V
TPS54233D	1+ $1.750 10+ $1.570 25+ $1.490 100+ $1.260	PDF RFQ	435 In-stock	Texas instruments	Switching Voltage Regulators 28V,2A,300khZ Non- synch Buck	SMD/SMT	SOIC-8	- 40 C	+ 150 C	TPS54233	Tube	2 A	0.8 V to 25 V	285 kHz	1 Output	28 V	Buck	3.5 V
TPS54283PWP	1+ $4.860 10+ $4.360 25+ $4.200 100+ $3.580	PDF RFQ	174 In-stock	Texas instruments	Switching Voltage Regulators 2A Non-Synch Buck Converter	SMD/SMT	HTSSOP-14	- 40 C	+ 85 C	TPS54283	Tube	2 A	0.8 V to 25.2 V	300 kHz	2 Output	28 V	Buck	4.5 V
MAX1774EEI+	1+ $10.240 10+ $9.740 25+ $6.940 50+ $6.610	PDF RFQ	97 In-stock	Maxim Integrated	Switching Voltage Regulators Dual Step-Down w/Switchover	SMD/SMT	QSOP-28	- 40 C	+ 85 C	MAX1774	Tube	2 A	1.25 V to 5.5 V	1.25 MHz	2 Output	28 V	Buck	2.7 V
MP1582EN-LF	1+ $2.940 10+ $2.450 100+ $1.950 200+ $1.800	PDF RFQ	26 In-stock	MPS,Monolithic Power Systems	Switching Voltage Regulators 2A 1.5MHz 28V Nonsync Buck	SMD/SMT	SOIC-8	- 20 C	+ 85 C	MP1582	Tube	2 A	800 m V to 30 V	900 kHz	1 Output	28 V	Buck	4.5 V
L7980A	1+ $1.690 10+ $1.440 100+ $1.150 500+ $1.010	PDF RFQ	1,735 In-stock	STMicroelectronics	Switching Voltage Regulators 2A Step-Down Reg 2.5A 4.5 28V 250kHz	SMD/SMT	HSOP-8		+ 150 C	L7980	Tube	2 A	600 mV to 28 V	220 kHz to 275 kHz	1 Output	28 V	Buck