ST750ACDTR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST750ACDTR

Adjustable step-down, current-mode PWM DC-DC converters

STMicroelectronics 

Pin configuration

2

Pin configuration

Figure 2. Pin connections (top view)

ST750A

Table 1.

Pin N°

1

2

3

4

5

6

7

8

Pin description

Symbol

Name and function

SHDN

Shutdown control (active low): If connected to GND the IC is in shutdown. Connect to VCC

for normal operation (ON MODE)

REF

Reference output voltage: (1.25V): Bypass to GND with a capacitor that does not exceed

47nF

SS

Soft start: a capacitor between SS and GND provides soft-start and short-circuit

protections.

CC

Compensation capacitor input: externally compensates the outer (voltage) feedback loop.

Connect to OUT with 330pF capacitor

IC

Internal connection: make no external connection to this pin

GND Ground

LX

Switch output. Drain of internal P-channel power MOSFET

Supply voltage input. Bypass to GND with 1μF ceramic capacitance and large value

VCC

electrolytic capacitor in parallel. The 1μF capacitor must be as close as possible to the

GND and VCC pins

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