MCP1256 データシートの表示（PDF） - Microchip Technology

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MCP1256

Regulated 3.3V, Low-Ripple Charge Pump with Low-Operating Current SLEEP Mode or BYPASS Mode

Microchip Technology 

MCP1256/7/8/9

6.0 TYPICAL APPLICATION

CIRCUITS

The MCP1256/7/8/9 devices are inductorless, positive

regulated, switched capacitor DC/DC converters.

Typical application circuits are depicted in Figure 6-1.

INPUT

1.8V to 3.6V

CIN

10 μF

C1

1 μF

ON / OFF

MCP1256

7 VIN

VOUT 5

10 SHDN PGOOD 1

4 C1+

8 C1-

6

C2+

C2- 3

2 SLEEP

GND

9

R1

C2

1 μF

OUTPUT

3.3V

COUT

10 μF

Power-Good

Indication

Typical Application with Power-Good Indication

INPUT

1.8V to 3.6V

CIN

10 μF

C1

1 μF

ON / OFF

MCP1259

7 VIN

VOUT 5

10 SHDN

LBO 1

4 C1+

8 C1-

C2+ 6

C2- 3

2 BYPASS

GND

9

R1

C2

1 μF

OUTPUT

3.3V

COUT

10 μF

Low-Battery

Indication

FIGURE 6-1:

Typical Application with Low-Battery Indication

Typical Application Circuits.

DS21989A-page 14

© 2006 Microchip Technology Inc.

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