L6926

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Table 2. Absolute Maximum Ratings

Figure 3. Pin Connection

Table 3. Thermal Data

Table 4. Pin Functions

Symbol

Parameter

Value

Unit

Input voltage

-0.3 to 6

V

Output switching voltage

V

Shutdown

V

Feedback voltage

V

Error amplifier output voltage

V

PGOOD

V

Synchronization mode selector

V

Ptot

Power dissipation at Tamb=70

°C0.45

W

Tj

Junction operating temperature range

-40 to 150

°C

Tstg

Storage temperature range

-65 to 150

°C

LX Pin

Maximum Withstanding Voltage Range Test Condition: CDF-

AEC-Q100-002- “Human Body Model” Acceptance Criteria:

“Normal Performance’

±1000

V

Other pins

±2000

V

Symbol

Parameter

Value

Unit

Thermal Resistance Junction to Ambient

180

°C/W

N

Name

Description

1

RUN

Shutdown input. When connected to a low level (lower than 0.4V) the device stops working.

When high (higher than 1.3V) the device is enabled.

2

COMP

Error amplifier output. A compensation network has to be connected to this pin. Usually a

220pF capacitor is enough to guarantee the loop stability.

3

VFB

Error amplifier inverting input. The output voltage can be adjusted from 0.6V up to the input

voltage by connecting this pin to an external resistor divider.

4

GND

Ground.

5

LX

Switch output node. This pin is internally connected to the drain of the internal switches.

6

VCC

Input voltage. The start up input voltage is 2.2V (typ) while the operating input voltage range is

from 2V to 5.5V. An internal UVLO circuit realizes a 100mV (typ.) hysteresis.

RUN

COMP

VFB

GND

1

3

2

4LX

SYNC

PGOOD

8

7

6

5

D01IN1239AMOD