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          Mfr Part#          
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Number of Outputs
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 RoHS 
Catalog Page 2308743 STMicroelectronics L4971 Buck Switching Regulator IC Positive Adjustable 3v3 to 50V 1 Output 1500mA DIP-8  1: $2.59
UNIT=EA
Yes 
351 in stock 
DIP-8 
Step-Down 
Adjustable 
Catalog Page 871105 NXP Semiconductors MC33063AP1 Buck Boost Switching Regulator IC Positive or Negative Adjustable 1.25V 1 Output 1.5A (Switch) DIP-8  1: $0.59
UNIT=EA
Yes 
900 in stock 
DIP-8 
Step-Up, Step-Down 
Adjustable 
Catalog Page 900404 TI LM3578AN Buck-Boost Switching Regulator IC Positive or Negative 1 Output 750mA (Switch) DIP-8  1: $2.49
UNIT=EA
Yes 
175 in stock 
DIP-8 
Step-Up, Step-Down, Step-Up/Step-Down 
Positive or Negative 
Catalog Page 2313375 Analog Devices LT1339CN DC-DC Controller IC Boost, Forward Converter Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DIP-20  1: $8.95
UNIT=EA
Yes 
41 in stock 
DIP-20 
Step-Up, Step-Up/Step-Down 
Transistor Driver 
Catalog Page 316945 Motorola MC34063AP1 IC MC34063AP1 DC Controller Step Up-Down 3-40 Volt 8-pin DIP  1: $0.65
UNIT=EA
Yes 
2,690 in stock 
DIP-8 
Step-Up, Step-Down 
Adjustable 
Catalog Page 192372 National Semiconductor LM2576HVT-ADJ IC LM2567HVT-ADJ 1.23-to-57V 3A Adjustable Step Down Switching Voltage Regulator  1: $4.95
UNIT=EA
Yes 
108 in stock 
TO-220-5 
Step-Down 
Adjustable 
Catalog Page 1997156 STMicroelectronics MC34063AN IC MC34063ACN DC-to-DC Converter Step Up/Down 3-40 Volt 1.5 Amp 8-pin DIP  1: $0.69
UNIT=EA
Yes 
153 in stock 
DIP-8 
Step-Up, Step-Down 
Adjustable 
Catalog Page 2305031 Power Integrations LNK304PN Offline Converter Buck, Buck-Boost, Flyback 66kHz DIP-8B  1: $0.69
UNIT=EA
Yes 
161 in stock 
DIP-8B 
Buck, Buck-Boost, Flyback 
Non-Isolated 
Catalog Page 2305039 Maxim Semiconductor MAX756EPA Step-Up DC-DC Boost Converter 3.3V or 5V Pin-Selectable DIP-8  1: $4.45
UNIT=EA
Yes 
87 in stock 
DIP-8 
Step-Up 
Programmable 
Catalog Page 2305103 TI LM5085MME/NOPB Step-Down DC-DC Controller IC Buck Regulator Positive Output VSSOP-8  1: $2.59
UNIT=EA
Yes 
86 in stock 
VSSOP-8 
Step-Down 
Positive 
Catalog Page 2291487 Infineon Technologies LT1507CS83.3 Buck Switching Regulator IC Positive Fixed 3v3 1500mA SOIC-8  1: $6.95
UNIT=EA
Yes 
487 in stock 
SOIC-8 
Step-Down 
Fixed 
Catalog Page 2305063 Linear Technology LT1173CS8#PBF Buck Boost Switching Regulator Positive or Negative Adjustable Output 1.245V to 50V 1500mA SOIC-8  1: $5.95
UNIT=EA
Yes 
87 in stock 
SOIC-8 
Step-Up, Step-Down 
Adjustable 
Catalog Page 836027 National Semiconductor LM2575S-ADJ/NOPB Buck Switching Regulator IC Single Positive Adjustable 1.23V 1A TO-263-6  1: $2.95
UNIT=EA
Yes 
446 in stock 
TO-263-5 
Inverting, Step-Down 
Adjustable 
Catalog Page 806611 Maxim Semiconductor MAX1703ESE Boost Switching Regulator IC Positive Fixed 5V or Adjustable Step-Up 2.5V to 5V 1.5A SOIC-16  1: $8.95
UNIT=EA
Yes 
596 in stock 
SOIC-16 
Step-Up 
Adjustable (Fixed) 
Catalog Page 2290695 STMicroelectronics L5973D013TR IC L5973D013TR 1.235-to-35V 2.5A Adjustable Switch Step Down Switching Regulator  1: $2.49
UNIT=EA
Yes 
10,000 in stock 
SOIC-8 
Step-Down 
Adjustable 
Catalog Page 2297015 Major Brands UC3524AN Advanced Regulating Pulse Width Modulator 500 kHz DIP-16  1: $2.29
UNIT=EA
Yes 
150 in stock 
DIP-16 
Step-Up, Step-Down 
Transistor Driver 
Catalog Page 2305095 TI LM2678T-ADJ/NOPB Buck Switching Step-Down Voltage Regulator Positive Adjustable 1.21V to 37V 5A TO-220-7  1: $5.49
UNIT=EA
Yes 
85 in stock 
TO-220-7 (formed) 
Step-Down 
Adjustable 
Catalog Page 2291631 National Semiconductor TPPM0115P Buck Regulator Positive Output Step-Down DC-DC Controller IC SOIC-8  1: $4.95
UNIT=EA
Yes 
375 in stock 
SOIC-8 
Step-Down 
Transistor Driver 
Catalog Page 2291519 Linear Technology LTC1147LCS8 Buck Regulator Positive Output Step-Down DC-DC Controller IC SOIC-8  1: $5.95
UNIT=EA
Yes 
695 in stock 
SOIC-8 
Step-Down 
Transistor Driver 
Catalog Page 2291479 Infineon Technologies LT1934IS6 Buck Switching Regulator IC Positive Adjustable 1.25V 300mA TSOT-23-6  1: $4.95
UNIT=EA
Yes 
144 in stock 
TSOT-23-6 
Step-Down 
Adjustable 
Catalog Page 2305055 TI LM25005MHX/NOPB Buck Switching Regulator Positive Adjustable Output 1.225V to 37V 2500mA 20-HTSSOP  1: $2.79
UNIT=EA
Yes 
90 in stock 
HTSSOP-20 
Step-Down 
Adjustable 
N/A 1314589 On Semiconductor LM2576T-ADJG Con Volt DC-DC Single Output Step Down 5-Pin (5+Tab) TO-220 Rail  25: $2.19
UNIT=EA
Yes 
141 ship on Oct. 26 
 
Step-Down 
Adjustable 
25 
Catalog Page 1753987 Linear Technology LTC1771IS8 Buck Regulator Positive Output Step-Down DC-DC Controller IC SOIC-8  1: $5.95
UNIT=EA
Yes 
1,062 in stock 
SOIC-8 
Step-Down 
Transistor Driver 
Catalog Page 2291495 Infineon Technologies LTC1266CS-3.3 Buck Regulator Positive Output Step-Down DC-DC Controller IC SOIC-16  1: $6.95
UNIT=EA
Yes 
1,361 in stock 
SOIC-16 
Step-Down 
Transistor Driver 
N/A 1389450 STMicroelectronics L4978 Con Volt DC-DC Single Output Step Down 8-Pin PDIP  10: $5.49
UNIT=EA
Yes 
1,728 ship on Oct. 26 
 
Step-Down 
Adjustable 
10 
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