Parametric results for: LM257 under Switching Regulator or Controllers

All Filters Additional Feature Analog IC - Other Type Control Mode Control Technique Input Voltage-Max Input Voltage-Min Input Voltage-Nom JESD-30 Code JESD-609 Code Length Manufacturer Number of Outputs Output Current-Max Output Voltage-Max Output Voltage-Min Output Voltage-Nom Supply Current-Max (Isup) Supply Voltage-Nom (Vsup) Surface Mount Switcher Configuration Switching Frequency-Max

ADJUSTABLE OUTPUT VOLTAGE 1.23V TO 37V 1 ADJUSTABLE OUTPUT VOLTAGE RANGE FROM 1.23 V TO 37 V 1 ALSO AVAILABLE IN ADJUSTABLE MODE FROM 1.23 TO 38.48 VOLT 7 ALSO AVAILABLE IN ADJUSTABLE MODE FROM 1.23 TO 59.28 VOLT 8 ALSO AVAILABLE IN ADJUSTABLE MODE FROM 1.23V TO 57V 1 ALSO HAS ADJUSTABLE OUTPUTS AS 1.23 V TO 37 V 2 ALSO OPERATES IN ADJUSTABLE MODE FROM 1.23 TO 37 V 8 ALSO OPERATES IN ADJUSTABLE MODE FROM 1.23V 37V 24 ALSO OPERATES IN ADJUSTABLE MODE FROM 1.23V T0 30V 6 ALSO OPERATES IN ADJUSTABLE MODE FROM 1.23V TO 37V 12 ALSO OPERATES IN BUCK BOOST SWITCHER CONFIGURATION 1 CAN ALSO CONFIGURED AS BUCK BOOST REGULATOR 224 OPERATES IN ADJUSTABLE MODE FROM 1.23 TO 57V 2 OPERATES IN ADJUSTABLE MODE FROM 1.23V TO 37V 6 OPERATES IN ADJUSTABLE MODE FROM 1.23V TO 52V 3 OUTPUT VOLTAGE= 1.23V TO 37V 1 SEATED HGT-CALCULATED 1 SEATED HGT-CALCULATED; ADJ OUTPUT VOLATGE =1.23V TO 57V 1 VOUT RANGE=(1.23-37 VOLT) 3

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SWITCHING REGULATOR 1,680

1,805 hits Apply

CURRENT-MODE 103 VOLTAGE-MODE 1,515

1,805 hits Apply

PULSE WIDTH MODULATION 1,320

1,805 hits Apply

Input Voltage-Max (4)

35 V 1 40 V 1,111 55 V 15 60 V 458

Min (V) - Max (V)

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Input Voltage-Min (10)

2 V 23 3.5 V 96 4 V 429 4.75 V 211 5.1 V 3 6 V 49 7 V 113 8 V 355 15 V 141 18 V 139

Min (V) - Max (V)

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Input Voltage-Nom (5)

12 V 1,001 18 V 3 25 V 242 30 V 133 5 V 94

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O-MBCY-P4 1 O-MBCY-W4 8 O-MBCY-W8 4 O-MBFM-P2 3 R-PDIP-T16 70 R-PDIP-T24 3 R-PDIP-T8 103 R-PDSO-G14 118 R-PDSO-G16 12 R-PDSO-G24 127 R-PDSO-G8 22 R-PSFM-T11 2 R-PSFM-T5 316 R-PSSO-G5 524 R-PZFM-T5 42 R-PZIP-T5 46 R-XSFM-T5 60 R-XSSO-G5 17 R-XUUC-N5 2 R-XZFM-T5 56 S-PZFM-T5 15 X-XUUC-N 99

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e0 786 e3 463 e4 11

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4.9 mm 9 8.9915 mm 1 9 mm 117 9.395 mm 5 9.525 mm 18 9.59 mm 2 9.78 mm 26 9.817 mm 47 9.97 mm 48 10.02 mm 116 10.16 mm 268 10.22 mm 9 10.287 mm 42 10.3 mm 11 10.36 mm 40 10.363 mm 8 15.4 mm 98 15.42 mm 29 19.304 mm 1 19.305 mm 6 19.812 mm 16 21.755 mm 36 21.7551 mm 1 22.1 mm 8

Min (mm) - Max (mm)

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Manufacturer (15)

Bay Linear Inc 32 CYT Opto-electronic 16 FCI Semiconductor 42 Freescale Semiconductor 36 HTC Korea 39 Micrel Inc 87 Microchip Technology Inc 165 Motorola Mobility LLC 45 Motorola Semiconductor Products 73 National Semiconductor Corporation 390 onsemi 140 Rochester Electronics LLC 115 Secos Corporation 5 Semtech Corporation 85 Texas Instruments 535

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Number of Outputs (1)

1 177

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Output Current-Max (15)

500 mA 50 600 mA 1 650 mA 3 750 mA 27 800 mA 2 1 A 154 1.3 A 19 1.8 A 199 3 A 291 3.2 A 595 3.5 A 35 4 A 15 6 A 94 6.9 A 1 7.5 A 209

Min (A) - Max (A)

1,805 hits Apply

Output Voltage-Max (18)

1.243 V 6 3.465 V 7 5.1 V 4 5.25 V 10 5.275 V 2 12 V 3 12.24 V 3 12.6 V 9 12.66 V 2 15.3 V 3 15.75 V 2 15.83 V 2 36 V 4 37 V 184 57 V 44 60 V 9 65 V 2 82 V 2

Min (V) - Max (V)

1,805 hits Apply

Output Voltage-Min (13)

1 V 4 1.217 V 6 1.23 V 72 3.1 V 2 3.135 V 7 3.3 V 168 3.4 V 2 4.75 V 12 4.9 V 4 11.4 V 11 11.76 V 3 14.25 V 4 14.7 V 3

Min (V) - Max (V)

1,805 hits Apply

Output Voltage-Nom (5)

1.23 V 141 3.3 V 205 5 V 251 12 V 243 15 V 170

Min (V) - Max (V)

1,805 hits Apply

Supply Current-Max (Isup) (8)

3.5 mA 4 4 mA 4 7 mA 2 10 mA 282 11 mA 46 12 mA 53 14 mA 8 85 mA 25

Min (mA) - Max (mA)

1,805 hits Apply

Supply Voltage-Nom (Vsup) (1)

12 V 16

1,805 hits Apply

Surface Mount (2)

NO 754 YES 952

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Switcher Configuration (4)

BOOST 96 BUCK 1,383 BUCK-BOOST 100 SINGLE 8

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Switching Frequency-Max (6)

24 kHz 10 52 kHz 121 58 kHz 1 62 kHz 168 63 kHz 1,351 100 kHz 19

Min (kHz) - Max (kHz)

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