LM1575, LM2575-N, LM2575HV

SNVS106E – MAY 1999 – REVISED APRIL 2013

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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) (3)

Maximum Supply Voltage

LM1575/LM2575

45V

LM2575HV

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 sec.)

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 ensure specific performance limits. For specified specifications and test

conditions, see Electrical Characteristics.

(2)

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

(3)

Refer to RETS LM1575J for current revision of military RETS/SMD.

OPERATING RATINGS

Temperature Range

LM1575

LM2575/LM2575HV

Supply Voltage

LM1575/LM2575

40V

LM2575HV

60V

ELECTRICAL CHARACTERISTICS LM1575-3.3, LM2575-3.3, LM2575HV-3.3

Temperature Range .

LM2575-3.3

LM1575-3.3

Units

LM2575HV-3.3

Symbol

Parameter

Conditions

Typ

(Limits)

SYSTEM PARAMETERS Test Circuit Figure 25 and Figure 26(3)

Output Voltage

3.3

V

Circuit Figure 25 and Figure 26

3.267

3.234

V(Min)

3.333

3.366

V(Max)

Output Voltage

4.75V

3.3

V

LM1575/LM2575

Circuit Figure 25 and Figure 26

3.200/3.168

3.168/3.135

V(Min)

3.400/3.432

3.432/3.465

V(Max)

Output Voltage

4.75V

3.3

V

LM2575HV

Circuit Figure 25 and Figure 26

3.200/3.168

3.168/3.135

V(Min)

3.416/3.450

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 limits are used to

calculate Average Outgoing Quality Level, and all are 100% production tested.

(2)

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.

(3)

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

When the LM1575/LM2575 is used as shown in the test circuit Figure 25 and Figure 26, system performance will be as shown in system

parameters of Electrical Characteristics.

4

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