MIC38300 Просмотр технического описания (PDF) - Micrel

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Компоненты Описание

производитель

MIC38300

HELDO® 3A High-Efficiency Low Dropout Regulator

Micrel 

Micrel, Inc.

Ordering Information

Part Number

Output Current Voltage(1)

MIC38300HYHL

3.0A

Adjustable

Note:

1. Other voltages are available. Contact Micrel for details.

Junction Temperature Range

–40°C to +125°C

Pin Configuration

MIC38300

Package

Pb-Free 28-Pin 4mm × 6mm MLF

SWO 1

28 SW

SWO 2

27 SW

SWO 3

26 SW

SWO 4

25 SW

SWO 5

SW 6

24 SW

23 SW

ePAD 7

22 ePAD

AVIN 8

21 PGND

LPF 9

20 PGND

AGND 10

FB 11

19 PGND

18 EN

12 13 14 15 16 17

28-Pin 4mm × 6mm MLF (ML)

(Top View)

Pin Description

Pin Number

MIC38300HYHL

1, 2, 3, 4, 5

6, 23, 24, 25, 26, 27, 28

7, 22

8

9

10

11

Pin Name Pin Name

SWO

SW

ePAD

AVIN

LPF

AGND

FB

Switch (Output): This is the output of the PFM Switcher.

Switch Node: Attach external resistor from LPF to increase hysteretic frequency.

Exposed heat-sink pad. Connect externally to PGND.

Analog Supply Voltage: Supply for the analog control circuitry. Requires bypass capacitor

to ground. Nominal bypass capacitor is 1µF.

Low Pass Filter: Attach external resistor from SW to increase hysteretic frequency.

Analog Ground.

Feedback: Input to the error amplifier. Connect to the external resistor divider network to

set the output voltage.

April 10, 2013

2

Revision 5.0

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