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L4973D3.3, Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO Tube

Ном. номер: 8001014944
PartNumber: L4973D3.3
Производитель: ST Microelectronics
Фото 1/2 L4973D3.3, Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO Tube
* Изображения служат только для ознакомления,
см. техническую документацию
Фото 2/2 L4973D3.3, Conv DC-DC 8V to 55V Step Down Single-Out 0.5V to 50V 3.5A 20-Pin SO Tube
344 руб.
1096 шт.,
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The L4973D3.3 is a step-down monolithic power Switching Regulator delivering 3.5A at fixed voltage of 3.3 or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15R) to obtain very high efficiency and very fast switching times. Switching frequency up to 300kHz is achievable. A wide input voltage range between 8 to 55V and output voltages regulated from 3.3 to 40V cover the majority of the today applications. Features of this new generation of DC-to-DC converter includes pulse by pulse current limit, hiccup mode for output short-circuit protection, voltage feed-forward regulation, soft-start, input/output synchronization, protection against feedback loop disconnection, inhibit for zero current consumption and thermal shutdown.

• Inhibit for zero current consumption (100mA at VCC=24V)
• Input/output synchronization function
• Protection against feedback disconnection
• Output overvoltage protection
• Internal current limiting (pulse by pulse and HICCUP mode)
• Zero load current operation (minimum 1mA)
• Precise 5.1V (1.5%) reference voltage externally available

Технические параметры

EU RoHS
Compliant
ECCN (US)
EAR99
Part Status
Active
HTS
8542.39.00.01
Type
Step Down
Line Regulation
10mV
Load Regulation
25mV
Number of Outputs
1
Output Type
Adjustable
Output Voltage (V)
0.5 to 50
Maximum Output Current (A)
3.5
Minimum Input Voltage (V)
8
Maximum Input Voltage (V)
55
Operating Supply Voltage (V)
8 to 55
Switching Regulator
Yes
Switching Frequency (kHz)
300
Efficiency (%)
85(Typ)
Minimum Operating Temperature (°C)
-40
Maximum Operating Temperature (°C)
150
Packaging
Tube
Standard Package Name
SOP
Supplier Package
SO
Pin Count
20
Mounting
Surface Mount
Package Height
2.35(Max)
Package Length
13(Max)
Package Width
7.6(Max)
PCB changed
20
Lead Shape
Gull-wing

Дополнительная информация

Datasheet L4973D3.3
Datasheet L4973D3.3

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