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The H (Metal Can), J (Ceramic), and K (Metal Can) Packages From Analog Devices Are Now Obsolete 
The LT117A Series are 3-terminal positive adjustable voltage regulators which offer improved performance over earlier devices. A major feature of the LT117A is the output voltage tolerance is guaranteed at a maximum of ±1%, allowing an overall power supply tolerance to be better than 3% using inexpensive 1% resistors. Line and load regulation performance has been improved as well. Additionally, the LT117A reference voltage is guaranteed not to exceed 2% when operating over the full load, line and power dissipation conditions. The LT117A adjustable regulators offer an improved solution for all positive voltage regulator requirements with load currents up to 1.5 amps. For performance curves and applications circuits see the LT117A series data sheet.
Applications

    Wide Range Power Supplies
    Constant Current Supplies
    Voltage Programmable Supplies

Linear Voltage Regulators Improved LM317 1% Tol

DC-DC CONVERTER, SOP-8; Fixed Output Voltage Nom.:-; Adjustable Output Voltage Min:1.2V; Adjustable Output Voltage Max:37V; Input Voltage Min:3V; Input Voltage Max:40V; Product Range:-; Output Current:100mA; Output Type:Adjustable RoHS Compliant: Yes

ANA 500MA ADJUST OUT VREG ROHS COMPLIANT: YES

VOLT REG, 1.2V-37V, 0.5A, 0 TO 125DEG C; Fixed Output Voltage Nom.:-; Adjustable Output Voltage Min:1.2V; Adjustable Output Voltage Max:37V; Input Voltage Min:-; Input Voltage Max:40V; Output Current:500mA; Output Type:Adjustable RoHS Compliant: Yes

LINEAR VOLT REG, 1.2-37V, 0.5A, TO-252-3 ROHS COMPLIANT: YES

Linear Voltage Regulator IC  1 Output  500mA TO-252, (D-Pak)

Standard Regulator Pos 1.2V to 37V 1.5A 3-Pin(2+Tab) TO-252 T/R

Standard Regulator Pos 1.25V to 37V 1.5A 4-Pin(3+Tab) SOT-223 T/R

Texas Instruments

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2536

1

$4.64

100

$4.07

250

$2.85

1000

$2.30

0

1

$8.72

10

$7.39

100

$6.41

250

$6.08

0

1

$6.09

10

$5.47

25

$5.17

50

$4.71

0

1

$5.13

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$4.96

25

$4.79

50

$4.62

177

1

$6.45

10

$5.79

25

$5.48

100

$4.50

250

$4.04

500

$3.90

1000

$3.24

2500

$3.22

41

41

$3.04

9000

$3.01

18000

$2.98

45000

$2.95

41

90