MFG:STMICROELECTRONICSSEMI Package Cooled:DIP/SOP D/C:08+
MFG: STMICROELECTRONICSSEMI
Package Cooled: DIP/SOP
D/C: 08+
Description: The L4976 is a step down monolithic power switching regulator delivering 1A at a voltage between 3.3V ...
The L4976 is a step down monolithic power switching regulator delivering 1A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology,the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25W) to obtain very high efficency and high switching speed.
A switching frequency up to 250KHz is achievable (the maximum power dissipation of the packages must be observed).
A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 40V cover the majority of today's applications.Features of this new generations of DC-DC converter include pulse-by-pulse current limit, hiccup
mode for short circuit protection, voltage feedforward regulation, protection against feedback loop disconnectionand thermal shutdown.
The device is available in plastic dual in line,MINIDIP 8 for standard assembly, and SO16W for SMD assembly.
|
Symbol |
Parameter |
Value |
Unit | ||
|
Minidip |
SO16 | ||||
|
V5 |
V11 |
Input voltage |
58 |
V | |
|
V4 |
V5,V6 |
Output DC voltage Output peak voltage at t = 0.1s f=200KHz |
-1 -5 |
V V | |
|
I4 |
I5,I6 |
Maximum output current |
int. limit. |
||
|
V6-V5 |
V12-V11 |
14 |
V | ||
|
V6 |
V12 |
Bootstrap voltage |
70 |
V | |
|
V7 |
V13 |
Analogs input voltage (VCC = 24V) |
12 |
V | |
|
V8 |
V14 |
(VCC = 20V) |
6 -0.3 |
V V | |
|
Ptot |
Power dissipation a Tamb 60°C | Minidip |
1 |
W | |
| SO16 |
0.8 |
W | |||
|
Tj,Tstg |
Junction and storage temperature |
-40to150 |
°C | ||
L4976
PDF/DataSheet Download
The L4975A is a stepdown monolithic power switching regulator delivering 5A at a voltage variable from 5.1 to 40V.Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Featu...
(NARROW%20PDIP%20MDIP)%20SERIES.JPG)
The L4974Aisa stepdownmonolithicpowerswitching regulator delivering 3.5A at a voltage variable from 5.1 to 40V.Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiencyand very fast switching times. Featureso...
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V.Realized in BCD mixed technology, L4974A uses an internal power D-MOS tran...
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V.Realized in BCD mixed technology,L4973 uses an internal power D-MOS transi...
%20SERIES.JPG)
IC REG SW STEP DOWN 3.5A 20-SOIC
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V.Realized in BCD mixed technology, L4973 uses an internal power D-MOS trans...
Price: 0.03-0.05 USD
schottky barrier diode, 20V, 500MA, SOD323, sillicon epitaxial planar, rectifier
Price: 2-2 USD
SSOP48, RAM Mapping, 32x4 LCD Controller, I/O MCU, 2.4V, 256kHz
Price: 0.1-1 USD
Zener diode, DO214, 18V, 1W, High ESD tolerance, Small power mold type
Price: 23-35 USD
diode module, 1200V, 540A, Isolated Base, 3 Phase Bridge Circuit, High Surge Capability
Price: 0.001-5 USD
Multilayer Chip Inductor, SMD, 100nH, Miniature size, Laminated ceramic, LL2012-F10NJ
Price: 1-5 USD
serial-interface Flash memory, 8SOIC, 66MHz, 2.7 V ~ 3.6 V, 4Mbit, AT45DB041D-SU
Price: 2.2-2.5 USD
STMP3550B144E IDT BGA
Price: 0.1-0.2 USD
RF power transistor, npn epitaxial planar type, TO-220, 35 V, 2 A, MITSUBISHI Electronics
Price: 5.6-12 USD
Bipolar Driver IC, 15 to 45V, 3.2A, 19 to 21kHz, Sanken electric, SI-7230M
Price: 180-225 USD
FX1N SERIES PROGRAMMABLE CONTROLLERS
Price: 1-20 USD
Erasable Read Only Memory, 3V, PLCC, 54 mW, 200ns, AT29BV040A-90TI
Price: 0.1-0.12 USD
DIODE Zener, 3.9V, 3 watt, plastic surface mount, voltage regulator, - 3.3 V to 200 V
