MAX15301AA01-CK 查看數據表（PDF） - Maxim Integrated

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MAX15301AA01-CK

InTune Automatically Compensated Digital PoL Controller with Driver and PMBus Telemetry

Maxim Integrated 

MAX15301

InTune Automatically Compensated Digital PoL

Controller with Driver and PMBus Telemetry

Pin Configuration

TOP VIEW

24 23 22 21 20 19 18 17

3P3 25

16 LX

OUTN 26

15 DH

OUTP 27

14 LXSNS

I.C. 28

I.C. 29

MAX15301

13 INSNS

12 EN

DCRP 30

DCRN 31

+

PG 32

EP

SGND

11 SDA

10 SCL

9 SALRT

1 2345678

TQFN

Pin Description

PIN

NAME

1

SYNC

2

ADDR0

3

SET

4

ADDR1

5

DGND

6

1P8

7

TEMPX

8

CIO

FUNCTION

External Switching Frequency Synchronization Input. Connect a resistor between SYNC and SGND to

set the switching frequency of the DC-DC converter (see Table 2). The MAX15301 can also synchronize

with an external clock applied at SYNC.

SMBus Address Select Input 0. Used with ADDR1 to assign a unique SMBus address to the device.

Output Voltage Set Input. Connect a resistor between SET and SGND to set the output voltage. Shorting

this pin to ground selects tracking mode (see Table 1).

SMBus Address Select Input 1. Used with ADDR0 to assign a unique SMBus address to the device and

set the current limit for MAX15301.

Digital Ground. Connect to DGND and PGND using short, wide PCB traces.

Internal 1.8V Regulator Output. 1P8 is the supply rail for the internal digital circuitry. Bypass 1P8 to

DGND with a 10µF ceramic capacitor. This pin may not be used to power any circuitry external to the

MAX15301.

Connection for the External Temperature Sensor. Connect an npn transistor junction from TEMPX to

SGND to measure the temperature at any point on the PCB. Place a 100pF ceramic capacitor in parallel

with the temperature sense junction.

Configurable Input/Output Pin. This is a voltage-tracking input when SET is connected to SGND to select

tracking mode. CIO must be grounded when not in tracking mode.

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