L4938ED

L4938ED, dual voltage regulator, 28 V, 1 mA, 875 mW, SOP

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Price:: US $1.50~1.50 / piece [Get Latest Price]

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Qty (lots)	Price/lot
1 ~ 1500 :	1.50 / Piece

PartNumber:: L4938ED

Brand:: STMicroelectronics - ST | Pack: SOP | D/C: 10+

Availability:: Supply Ability: 4/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

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Products Upload time: 2013-06-19

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Part Number:L4938ED
US $1.50 - 1.50
Quantity:

piece

Product Summary

The L4938ED is a monolithic integrated dual voltage regulator with two very low dropout outputs and additional functions as power-on reset and input voltage sense.The L4938ED is designed for supplying the microcomputer controlled system especially in automotive applications.

Parametrics

L4938ED absolute maximum ratings: (1)VINDC DC Operating Supply Voltage: 28 V; (2)VINTR Transient Operating Supply Voltage (T < 400ms): -14v to 40 V; (3)IO Output Current internally limited; (4)VSI Sense Input Voltage (Voltage Forced)(note 2): -20 V to 20 V; (5)ISI Sense Input Current (Current Forced)(note 2): ±1 mA; (6)VEN Enable Input Voltage (Voltage Forced)(note 2): -20 V to 20 V; (7)IEN Sense Input Current (Current Forced)(note 2): ±1 mA; (8)VRES , VSO Output Voltages : -0.3 V to 20 V; (9)IRES , ISO Output Currents (Output Low): 5 mA; (10)PO Power Dissipation at Tamb = 80°C (note 3)Powerdip 12+2+2: 875 mW; (11)Tstg Storage Temperature : -65°C to 150 °C; (12)Tj Operating Junction Temperature : -40°C to 150 °C; (13)TJSD Thermal shutdown junction temperature Output 2 will shut-down typically at Tj 10K lower than output 1: 165 °C.

Features

L4938ED features: (1)enable and sense inputs (en, si)protected against negative transients down to -5v; (2)reset threshold adjustable from 3.8 to 4.7v; (3)extremely low quiescent current, 65ma (less than 90ma)in standby mode; (4)operating dc supply voltage range 5v - 28v; (5)operating transient supply voltage up to 40v; (6)high precision standby output voltage 5v ± 1% with 100ma current capability; (7)output 2 voltage 5v ± 2% with 400ma current capability (adj wired to vout2); (8)output 2 voltage adjustable by external voltage divider; (9)output 2 disable function for standby mode.