LM2576 datasheet(4/37 Pages) TI1

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LM2576, LM2576HV

SNVS107C – JUNE 1999 – REVISED APRIL 2013

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ELECTRICAL CHARACTERISTICS LM2576-5.0, LM2576HV-5.0

Specifications with standard type face are for TJ = 25°C, and those with Figure 21 and Figure 22 boldface type apply over

full Operating Temperature Range.

LM2576-5.0

Units

LM2576HV-5.0

Symbol

Parameter

Conditions

(Limits)

Typ

Limit (1)

SYSTEM PARAMETERS Figure 21 and Figure 22(2)

VOUT

Output Voltage

VIN = 12V, ILOAD = 0.5A

5.0

Circuit of Figure 21 and Figure 22

4.900

V(Min)

5.100

V(Max)

VOUT

Output Voltage

0.5A

≤ ILOAD ≤ 3A,

5.0

LM2576

≤ VIN ≤ 40V

4.800/4.750

V(Min)

Circuit of Figure 21 and Figure 22

5.200/5.250

V(Max)

VOUT

Output Voltage

0.5A

≤ ILOAD ≤ 3A,

5.0

LM2576HV

≤ VIN ≤ 60V

4.800/4.750

V(Min)

Circuit of Figure 21 and Figure 22

5.225/5.275

V(Max)

Efficiency

VIN = 12V, ILOAD = 3A

(1)

All limits specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits

are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control

(SQC) methods.

(2)

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

When the LM2576/LM2576HV is used as shown in Figure 21 and Figure 22, system performance will be as shown in ELECTRICAL

CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS.

ELECTRICAL CHARACTERISTICS LM2576-12, LM2576HV-12

Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature

Range.

LM2576-12

Units

LM2576HV-12

Symbol

Parameter

Conditions

(Limits)

Typ

Limit (1)

SYSTEM PARAMETERS Test Circuit Figure 21 and Figure 22(2)

VOUT

Output Voltage

VIN = 25V, ILOAD = 0.5A

Circuit of Figure 21 and Figure 22

V(Min)

11.76

12.24

V(Max)

VOUT

Output Voltage

0.5A

≤ ILOAD ≤ 3A,

LM2576

15V

≤ VIN ≤ 40V

V(Min)

11.52/11.40

Circuit of Figure 21 and Figure 22 and

12.48/12.60

V(Max)

VOUT

Output Voltage

0.5A

≤ ILOAD ≤ 3A,

LM2576HV

15V

≤ VIN ≤ 60V

V(Min)

11.52/11.40

Circuit of Figure 21 and Figure 22

12.54/12.66

V(Max)

Efficiency

VIN = 15V, ILOAD = 3A

(1)

All limits specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits

are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control

(SQC) methods.

(2)

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

When the LM2576/LM2576HV is used as shown in Figure 21 and Figure 22, system performance will be as shown in ELECTRICAL

CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS.

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