Datasheet > LM2576HVDP-ADJ

LM2576HVDP-ADJ

更新时间： 2022-02-26 11:13:46

品牌	Logo	应用领域
韩国泰进 - HTC		/
页数	文件大小	规格书
7页	592K
描述
3A, 52kHz, Step-down Switching Regulator

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LM2576HVDP-ADJ 数据手册

3A, 52kHz, Step-down Switching Regulator

LM2576HV

FEATURES

 Step-down Switching Regulator

SOP-8PP PKG

 Adjustable Version Output Voltage Range, 1.23V to 52V

± 4% Max over Line and Load conditions

 Guaranteed Output Current of 3A

TO-263 PKG

 Fixed Output Voltages : 3.3V, 5.0V, 12V and 15V

 Wide Input Voltage Range 60V

 52 kHz Fixed Frequency Oscillator

 TTL Shutdown Capability, Low Power Standby Mode

 Requires only 4 External Components

 High Efficiency

TO-220 PKG

 Use Readily Available Standard Inductors

 Available in TO-220, TO-263 and SOP-8PP Packages

 Thermal Shutdown and Current Limit Protection

 Moisture Sensitivity Level 3

ORDERING INFORMATION

Device

APPLICATION

Package

 Simple high-efficiency step-down (buck) regulator

 Efficient pre-regulator for linear regulators

 On-card switching regulators

LM2576HVDP-ADJ

LM2576HVDP-X.X

LM2576HVR-ADJ

LM2576HVR-X.X

LM2576HVT-ADJ

SOP-8PP 8L

TO-263 5L

TO-220 5L

 Positive to negative converter (Buck-Boost)

LM2576HVT-X.X

X.X = Output Voltage = 3.3, 5.0, 12, 15

DESCRIPSION

The LM2576HV 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, 5.0V, 12V, 15V and adjustable output versions.

Requiring a minimum number of external components, these regulators are simple to use and include internal

frequency compensation and a fixed-frequency oscillator. The LM2576HV 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 LM2576HV 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 50uA

(typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown

for full protection under fault conditions.

Absolute Maximum Ratings ^{(Note 1)}

CHARACTERISTIC

SYMBOL

V_IN

MIN.

MAX.

UNIT

Input Supply Voltage

ON/OFF Pin Input Voltage

-0.3

-0.75

+ V_IN

Output Voltage to Ground (Steady State)

Lead Temperature (Soldering, 5 sec)

Storage Temperature Range

T_SOL

T_STG

T_JOPR

260

150

℃

-65

Maximum Junction Temperature Range

Feb. 2014 – R1.0

- 1 -

HTC

12 3 4 5 6 7

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