Datasheet > LM2574HV-5MWC

LM2574HV-5MWC

更新时间： 2023-06-15 00:00:00

品牌	Logo	应用领域
美国国家半导体 - NSC		开关
页数	文件大小	规格书
34页	823K
描述
IC 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator or Controller

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LM2574HV-5MWC 数据手册

LM2574-ADJ, LM2574HV-ADJ

Electrical Characteristics ^(Continued)

Specifications with standard type face are for T_J25˚C, and those with boldface type apply over full Operating Tempera-

ture Range. Unless otherwise specified, V_IN12V, I_LOAD100 mA.

Symbol Parameter Conditions

LM2574-ADJ

Units

(Limits)

LM2574HV-ADJ

Typ

Limit

(Note 2)

SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2

V_FB

Feedback Voltage

LM2574

7V ≤ V_IN≤ 40V, 0.1A ≤ I_LOAD≤ 0.5A

1.230

V_OUTProgrammed for 5V. Circuit of Figure 2

1.193/1.180

1.267/1.280

V(Min)

V(Max)

Feedback Voltage

LM2574HV

7V ≤ V_IN≤ 60V, 0.1A ≤ I_LOAD≤ 0.5A

V_OUTProgrammed for 5V. Circuit of Figure 2

1.193/1.180

1.273/1.286

V(Min)

V(Max)

= = =

V_IN12V, V_OUT5V, I_LOAD0.5A

Efficiency

All Output Voltage Versions

Electrical Characteristics

Specifications with standard type face are for T_J25˚C, and those with boldface type apply over full Operating Tempera-

ture Range. Unless otherwise specified, V_IN12V for the 3.3V, 5V, and Adjustable version, V_IN25V for the 12V version,

and V_IN30V for the 15V version. I_LOAD100 mA.

Symbol Parameter Conditions

LM2574-XX

LM2574HV-XX

Limit

Units

(Limits)

Typ

(Note 2)

DEVICE PARAMETERS

I_b

Feedback Bias

Current

Adjustable Version Only, V_OUT5V

100/500

f_O

Oscillator Frequency

Saturation Voltage

(see Note 10)

kHz

kHz(Min)

kHz(Max)

47/42

58/63

V_SAT

I_OUT0.5A (Note 4)

0.9

1.2/1.4

V(max)

Max Duty Cycle

(ON)

(Note 5)

%(Min)

I_CL

Current Limit

Peak Current, (Notes 4, 10)

1.0

0.7/0.65

1.6/1.8

A(Min)

A(Max)

mA(Max)

Output 0V

I_L

Output Leakage

Current

(Notes 6, 7)

(Note 6)

Output −1V

7.5

Output −1V

mA(Max)

I_Q

Quiescent Current

mA(Max)

µA

I_STBY

Standby Quiescent

Current

ON /OFF Pin 5V (OFF)

200

µA(Max)

θ_JA

Thermal Resistance

N Package, Junction to Ambient (Note 8)

N Package, Junction to Ambient (Note 9)

M Package, Junction to Ambient (Note 8)

M Package, Junction to Ambient (Note 9)

˚C/W

102

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