LM2576HVR-ADJ 데이터 시트보기 (PDF) - HTC Korea

부품명

상세내역

제조사

LM2576HVR-ADJ

3A, 52kHz, Step-down Switching Regulator

HTC Korea 

3A, 52kHz, Step-down Switching Regulator

PARAMETER

SYMBOL

TEST CONDITION

Output Leakage

Current

IL

(Notes 6, 7) Output=0V

Quiescent Current

Standby Quiescent

Current

ON/OFF CONTROL

IQ

ISTBY

(Note 6)

ON/OFF Pin = 5V

(OFF)

VIN = 60V

ON /OFF Pin

VIH

Logic Input Level

VIL

VO = 0V

VO = Nominal Output Voltage

ON /OFF Pin

Input Current

IIH

ON /OFF Pin = 5V (OFF)

IIL

ON /OFF Pin = 0V (ON)

MIN.

2.2

2.4

LM2576HV

(Continued)

TYP.

MAX. UNIT

7.5

mA

5

10

mA

50

200

uA

1.4

V

1.2

1.0

0.8

V

12

30

uA

0

10

uA

Note 1. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test

conditions, see the Electrical Characteristics.

Note 2. All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face).

Note 3. External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system

performance. When the 2576HV is used as shown in the Figure 2 test circuit, system performance will be as shown in system

parameters section of Electrical Characteristics.

Note 4. Output pin sourcing current. No diode, inductor or capacitor connected to output.

Note 5. Feedback pin removed from output and connected to 0V.

Note 6. Feedback pin removed from output and connected to +12V for the Adjustable, 3.3V, and 5V, versions, and +25V for the 12V and 15V

versions, to force the output transistor OFF.

Note 7. VIN =60V.

Note 8. The oscillator frequency reduces to approximately 11 kHz in the event of an output short or an overload which causes the regulated

output voltage to drop approximately 40% from the nominal output voltage. This self protections feature lowers the average power

dissipation of the IC by lowering the minimum duty cycle from 5% down to approximately 2%.

Feb. 2014 – R1.0

-5-

HTC

Share Link: