LM2621

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SNVS033D – MAY 2004 – REVISED NOVEMBER 2015

Electrical Characteristics (continued)

Unless otherwise specified: VDD= VOUT= 3.3 V, TJ = 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RDS_ON

MOSFET Switch On

0.17

Ω

Resistance

ENABLE SECTION

VEN_LO

EN Pin Voltage Low(5)

–40°C to 85°C

0.15VDD

V

VEN_HI

EN Pin Voltage High(5)

–40°C to 85°C

0.7VDD

V

(5)

When the EN pin is below VEN_LO, the regulator is shut down; when it is above VEN_HI, the regulator is operating.

6.5 Typical Characteristics

VOUT = 5.0 V

VOUT = 3.3 V

Figure 1. Efficiency vs Load Current

Figure 2. Efficiency vs Load Current

Figure 3. VFB vs Temperature

Figure 4. IOP vs Temperature

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