1

Vin

2

GND

Vout

5

NC

4

3

EN

1

Vin

2

GND

Vout

5

NC

4

3

EN

LP5951

SNVS345E – JUNE 2006 – REVISED JANUARY 2011

www.ti.com

Connection Diagram

Figure 1. 5-Lead SOT-23 Package – Top View

Figure 2. 5-Lead SC70 Package – Top View

See Package Number DBV

See Package Number DCK

PIN DESCRIPTIONS

Pin Number

Pin Name

Description

1

Input Voltage. Input range: 1.8V to 5.5V

2

GND

Ground

3

EN

Enable pin logic input: Low = shutdown, High = normal operation. This pin should not be left floating.

4

NC

No internal connection

5

Regulated output voltage

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)

-0.3V to 6.5V

EN pin: Voltage to GND

Internally Limited

150°C

Storage Temperature Range

-65°C to + 150°C

Package Peak Reflow Temperature (10-20 sec.)

240°C

Package Peak Reflow Temperature (Pb-free, 10-20 sec.)

260°C

Human Body Model:

2.0kV

Machine Model

200V

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under

which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed

performance limits and associated test conditions, see the Electrical Characteristics tables.

(2)

All voltages are with respect to the potential at the GND pin.

(3)

(4)

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

Ω resistor into each pin. The machine model is a 200pF

capacitor discharged directly into each pin. (MIL-STD-883 3015.7)

2

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