MP2101 データシートの表示（PDF） - Monolithic Power Systems

部品番号

コンポーネント説明

一致するリスト

MP2101

1.6MHz Synchronous Step-Down plus 200mA LDO

Monolithic Power Systems 

TM

MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO

OPERATION

The MP2101 is a fixed-frequency 1.6MHz,

800mA current mode PWM step-down switcher

with a 200mA low dropout (LDO) linear

regulator. The MP2101 is optimized for low

voltage, Li-Ion battery powered applications

where high efficiency and small size are critical.

The MP2101 uses an external resistor divider to

set both the switcher and LDO output voltage

from 0.6V to 6V.

IN1 3

EN1/2 2/9

FB1 1

BIAS

&

VOLTAGE

REFERENCE

0.6V

ICS

+

SLOPE COMP

FEEDBACK

ERROR EAMP1

EAO1

AMP

--

+

PWM

+PWMCMP

--

CC

17pF

1.6MHz OSC

OSCILLATOR

+

IAMP

10X

CURRENT --

SENSE

AMP

DH

PWM

CONTROL

LOGIC

DL

MAIN

SWITCH

(PCH)

SYNCHRONOUS

RECTIFIER

(NCH)

4 SW1

5 GND

FB2 10

FB1/2

0.6V

+

EAMP2

--

EAO2

0.66V

0.54V

+

OUT_Hi

--

POWER ON RESET

WINDOW

COMPARATORS

+

OUT_Lo

--

NO

GOOD

Figure 1—MP2101 Function Diagram

6 IN2

7 OUT2

8 PWROK

MP2101 Rev. 1.0

www.MonolithicPower.com

7

8/18/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

Share Link: