HG

1

3

5

4

LG

VIN

FB

2

GND

LM1770

SNVS403C – SEPTEMBER 2005 – REVISED APRIL 2013

www.ti.com

Connection Diagram

Figure 1. 5-Pin SOT-23 (Top View)

See DBV Package

Pin Functions

Table 1. Pin Descriptions

Pin #

Name

Function

1

VIN

Input supply

2

GND

Ground

3

LG

NFET Gate Drive

4

HG

PFET Gate Drive

5

FB

Feedback Pin

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)

VIN

-0.3V to 6V

Storage Temperature Range

−65°C to 150°C

Junction Temperature

150°C

Lead Temperature (soldering, 10sec)

260°C

ESD Rating

2.5kV

(1)

Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. Operating Ratings indicate conditions for

which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see Electrical

Characteristics.

(2)

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

specifications.

Operating Ratings

(1)

VIN to GND

2.8V to 5.5V

Junction Temperature Range (TJ)

−40°C to +125°C

(1)

Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. Operating Ratings indicate conditions for

which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see Electrical

Characteristics.

2

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