LM2671

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SNVS008K – SEPTEMBER 1998 – REVISED APRIL 2013

Absolute Maximum Ratings

(1) (2)

Supply Voltage

45V

ON/OFF Pin Voltage

Switch Voltage to Ground

−1V

Boost Pin Voltage

Feedback Pin Voltage

ESD Susceptibility

2 kV

Power Dissipation

Internally Limited

Storage Temperature Range

−65°C to +150°C

Lead Temperature

D Package

Vapor Phase (60s)

+215°C

Infrared (15s)

+220°C

P Package (Soldering, 10s)

+260°C

WSON Package (See AN-1187)

Maximum Junction Temperature

+150°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 device parameter specifications may not be ensured under these conditions. For

ensured specifications and test conditions, see the Electrical Characteristics.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

The human body model is a 100 pF capacitor discharged through a 1.5 k

Ω resistor into each pin.

Operating Ratings

Supply Voltage

6.5V to 40V

Temperature Range

Electrical Characteristics LM2671-3.3

Range.

Typical

Symbol

Parameter

Conditions

Units

(1)

SYSTEM PARAMETERS Test Circuit Figure 22 (3)

Output Voltage

3.3

3.251/3.201

3.350/3.399

V

Output Voltage

3.3

3.251/3.201

3.350/3.399

V

η

Efficiency

86

%

(1)

Typical numbers are at 25°C and represent the most likely norm.

(2)

All limits ensured 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 ensured via correlation using standard Statistical Quality Control

(SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(3)

External components such as the catch diode, inductor, input and output capacitors, and voltage programming resistors can affect

switching regulator performance. When the LM2671 is used as shown in Figure 22 and Figure 23 test circuits, system performance will

be as specified by the system parameters section of the Electrical Characteristics.

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