Datasheet > LM2576HVT-3.3

LM2576HVT-3.3

更新时间： 2024-11-15 12:09:43

品牌	Logo	应用领域
TGS		稳压器开关
页数	文件大小	规格书
8页	5067K
描述
regulators are monolithic integrated circuits that provide all the active functions for a step-down switching

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LM2576HVT-3.3 数据手册

TIGER ELECTRONIC CO.,LTD

LM2576 Series

Description

The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching

regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V,

5V, 12V, 15V, and an adjustable output versions. Requiring a minimum number of external components, these regulators are simple to

use and include internal frequency compensation and

fixed-frequency oscillator. The LM2576 series offers a

high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some

cases no heat sink is required. A standard series of inductors optimized for use with the LM2576 are available from several different

manufacturers. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ± 4%

tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External

shutdown is included, featuring 50µA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as

thermal shutdown for full protection under fault conditions.

Note:

Applications

Features

•

Simple high-efficiency step-down (buck) regulator

•

3.3V, 5V, 12V, 15V, and adjustable output versions

Efficient pre-regulator for linear regulators

On-card switching regulators

Positive to negative converter (Buck-Boost)

Adjustable version output voltage range

1.23V to 37V (57V for HV version) ± 4% max over line

and load conditions

•

Guaranteed 3A output current

Wide input voltage range, 40V up to 60V for HV

version

•

Requires only 4 external components

52 kHz fixed frequency oscillator

TTL shutdown capability, low power standby mode

High efficiency

Uses readily available standard inductors

Thermal shutdown and current limit protection

Typical application Figure 1.(Fixed Output Voltage Versions)

LM2576/

LM2576HV-

5.0

FEEDBACK

7V - 40V

(60V for HV)

UNREGULATED

DC INPUT

+VIN

OUTPUT

+5V

REGULATED

OUTPUT

100

ON/OFF

GND

OUT

1000

TIGER ELECTRONICS CO.,LTD

12 3 4 5 6 7 8

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与LM2576HVT-3.3相关器件

型号	品牌	获取价格	描述	数据表
LM2576HVT-3.3/NOPB	TI	获取价格	7.5A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSFM5, LEAD FREE, TO-220, 5 PIN
LM2576HVT-3.3FLOWLB03	ETC	获取价格	Voltage-Mode SMPS Controller
LM2576HVT-3.3LB03	ETC	获取价格	Voltage-Mode SMPS Controller
LM2576HVT-5	ETC	获取价格	SIMPLE SWITCHER 3A Step-Down Voltage Regulator(639.74 k)
LM2576HVT-5.0	TI	获取价格	SIMPLE SWITCHERÂ® 3A Step-Down Voltage Regula
LM2576HVT-5.0	NSC	获取价格	SIMPLE SWITCHER 3A Step-Down Voltage Regulator
LM2576HVT-5.0	TGS	获取价格	regulators are monolithic integrated circuits that provide all the active functions for a
LM2576HVT-5.0	UMW	获取价格	DC-DC芯片
LM2576HVT-5.0/LB03	TI	获取价格	SIMPLE SWITCHERÂ® 3A Step-Down Voltage Regula
LM2576HVT-5.0/LF02	TI	获取价格	SIMPLE SWITCHERÂ® 3A Step-Down Voltage Regula

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