LM2576, LM2576HV

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SNVS107C – JUNE 1999 – REVISED APRIL 2013

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

ABSOLUTE MAXIMUM RATINGS

(1) (2)

Maximum Supply Voltage

LM2576

45V

LM2576HV

63V

ON /OFF Pin Input Voltage

Output Voltage to Ground

(Steady State)

−1V

Power Dissipation

Internally Limited

Storage Temperature Range

−65°C to +150°C

Maximum Junction Temperature

150°C

Minimum ESD Rating

(C = 100 pF, R = 1.5 k

Ω)

2 kV

Lead Temperature

(Soldering, 10 Seconds)

260°C

(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 ensured specific performance limits. For ensured specifications and test

conditions, see ELECTRICAL CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS.

(2)

If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.

OPERATING RATINGS

Temperature Range

LM2576/LM2576HV

Supply Voltage

LM2576

40V

LM2576HV

60V

ELECTRICAL CHARACTERISTICS LM2576-3.3, LM2576HV-3.3

Range.

LM2576-3.3

Units

LM2576HV-3.3

Symbol

Parameter

Conditions

(Limits)

Typ

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

Output Voltage

3.3

V

Circuit of Figure 21 and Figure 22

3.234

V(Min)

3.366

V(Max)

Output Voltage

6V

3.3

V

LM2576

Circuit of Figure 21 and Figure 22

3.168/3.135

V(Min)

3.432/3.465

V(Max)

Output Voltage

6V

3.3

V

LM2576HV

Circuit of Figure 21 and Figure 22

3.168/3.135

V(Min)

3.450/3.482

V(Max)

η

Efficiency

75

%

(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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