LTC3406ES5-1.2 データシートの表示（PDF） - Linear Technology

部品番号

コンポーネント説明

メーカー

LTC3406ES5-1.2

1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

Linear Technology 

LTC3406-1.2

TYPICAL PERFOR A CE CHARACTERISTICS

(From Figure 1a Except for the Resistive Divider Resistor Values)

Load Step

Load Step

VOUT

100mV/DIV

AC COUPLED

ILOAD

500mA/DIV

IL

500mA/DIV

20µs/DIV

VIN = 3.6V

ILOAD = 100mA TO 600mA

340612 G16

VOUT

100mV/DIV

AC COUPLED

ILOAD

500mA/DIV

IL

500mA/DIV

20µs/DIV

VIN = 3.6V

ILOAD = 200mA TO 600mA

340612 G17

PI FU CTIO S

RUN (Pin 1): Run Control Input. Forcing this pin above

1.5V enables the part. Forcing this pin below 0.3V shuts

down the device. In shutdown, all functions are disabled

drawing <1µA supply current. Do not leave RUN floating.

GND (Pin 2): Ground Pin.

SW (Pin 3): Switch Node Connection to Inductor. This pin

connects to the drains of the internal main and synchro-

nous power MOSFET switches.

VIN (Pin 4): Main Supply Pin. Must be closely decoupled

to GND, Pin 2, with a 2.2µF or greater ceramic capacitor.

VOUT (Pin 5): Output Voltage Feedback Pin. An internal

resistive divider divides the output voltage down for com-

parison to the internal reference voltage.

W

FU CTIO AL DIAGRA

SLOPE

COMP

OSC

OSC

VOUT

5

FREQ

SHIFT

+

60k

0.8V

FB

– EA

120k

VIN

–

OV

RUN

OVDET

1

0.8V REF 0.8V + ∆VOVL +

SHUTDOWN

0.65V

ICOMP

SQ

RQ

RS LATCH

SWITCHING

LOGIC

AND

BLANKING

CIRCUIT

ANTI-

SHOOT-

THRU

IRCMP

4 VIN

5Ω

3 SW

2 GND

3406B12 BD

340612fa

5

Share Link: