LTM4618(RevA) 데이터 시트보기 (PDF) - Linear Technology

부품명

상세내역

제조사

LTM4618
(Rev.:RevA)

6A DC/DC µModule Regulator with Tracking and Frequency Synchronization

Linear Technology 

LTM4618

PIN FUNCTIONS

additional decoupling of the 5V internal regulator.

VOUT (BANK 3: J1-J4, K1-K4, L1-L4, M1-M4): Power Out-

put Pins. Apply output load between these pins and PGND

pins. Recommend placing output decoupling capacitance

directly between these pins and PGND pins.

SW (K6): Switching Node of the Circuit. This pin is used

to check the switching frequency. Leave pin floating. A

resistor-capacitor snubber can be placed from SW to

PGND to eliminate high frequency switch node ringing.

See the Applications Information section.

SIMPLIFIED BLOCK DIAGRAM

EXTVCC

INTVCC

MODE/PLLIN

TK/SS

CSS

RUN

PGOOD

COMP

INTVCC

FREQ

SGND

INTERNAL

COMP

INTERNAL

FILTER

INTERNAL

FILTER

POWER

CONTROL

1.5μF

M1

1.5μH

10μF

M2

60.4k

≤6V VIN

TIE VIN, INTVCC AND

EXTVCC TOGETHER

VIN

+

4.5V TO 26.5V

CIN

PGND

SW

VOUT

+

2.5V/6A

COUT

PGND

VFB

RFB

28k

4618 F01

Figure 1. Simplified LTM4618 Block Diagram

DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration.

SYMBOL

CIN

COUT

PARAMETER

External Input Capacitor Requirement

(VIN = 4.5V to 26.5V, VOUT = 2.5V)

External Output Capacitor Requirement

(VIN = 4.5V to 26.5V, VOUT = 2.5V)

CONDITIONS

IOUT = 6A

IOUT = 6A

MIN TYP MAX UNITS

10

μF

200

μF

4618fa

8

Share Link: