(China (Mainland))
Product Summary
The L4963W is a monolithic power switching regulator delivering 1.5A at 5.1V. The output voltage is adjustable from 5.1V to 36V, working in discontinuous variable frequency mode. Features of the device include remote inhibit, internal current limiting and thermal protection, reset and power fail outputs for microprocessor. The L4963W is mounted in a 12+3+3 lead Powerdip plastic packages and requires very few external components.
Parametrics
L4963W absolute maxing ratings: (1)Vi Input Voltage (pin 1 and pin 3 connected togheter): 47V; (2)V3–V2 Input to Output Voltage Difference: 47V; (3)V2 Negative Output DC Voltage: -1V; (4)V2 Negative Output Peak Voltage at t=0.2μs, f=50kHz: -5V; (5)V7 Power Fail Input: 25V; (6)V8, V10 Reset and Power Fail Output: Vi; (7)V9 Reset Delay Input: 5.5V; (8)V12, V16 Feedback and Inhibit Inputs: 7V; (9)V17, V18 Oscillator Inputs: 5.5V; (10)Ptot Total Power Dissipation Tpins≤90℃ (Power DIP): 5W; (Tamb=70℃ no copper area on PCB): 1.3W; (Tamb = 70℃, 4cm2 copper area on PCB): 2W; (11)Tstg, Tj Storage & Junction Temperature: -40 to 150℃; (Tamb = 70℃ 6cm2 copper area on PCB): 1.45℃.
Features
L4963W features: (1)1.5A output load current; (2)5.1 to 36V output voltage range; (3)Discontinuous variable frequency mode; (4)Precise(+/-2%)on chip reference; (5)Very high efficiency; (6)Very few external conponents; (7)No freq. compensation required; (8)Reset and power fail output for microprocessor; (9)Internal current limiting; (10)Thermal shutdown.
Diagrams
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 L4963W |
STMicroelectronics |
Switching Converters, Regulators & Controllers 5.1 to 36V 1.5 Amp |
Data Sheet |
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Quantity | ||||||||||||
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L4960 |
STMicroelectronics |
Switching Converters, Regulators & Controllers 5.1 to 40V 2.5 Amp |
Data Sheet |
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L4960H |
STMicroelectronics |
Switching Converters, Regulators & Controllers 5.1 to 40V 2.5 Amp |
Data Sheet |
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L4962 |
Other |
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Data Sheet |
Negotiable |
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L4962/A |
STMicroelectronics |
Switching Converters, Regulators & Controllers 5.0 to 40V Step-Down |
Data Sheet |
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L4962E |
Other |
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Data Sheet |
Negotiable |
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L4962E/A |
STMicroelectronics |
Switching Converters, Regulators & Controllers 5.0 to 40V Step-Down |
Data Sheet |
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