User manual

MCP1256/7/8/9 CHARGE PUMP
EVALUATION BOARD USER’S GUIDE
© 2006 Microchip Technology Inc. DS51603A-page 5
Chapter 1. Product Overview
1.1 INTRODUCTION
The MCP1256/7/8/9 Charge Pump Evaluation Board is used to evaluate Microchip’s
MCP1256/7/8/9 Regulated 3.3V, Low-Ripple Charge Pumps with low-operating current
SLEEP mode or BYPASS mode.
This chapter covers the following topics:
• What is the MCP1256/7/8/9 Charge Pump Evaluation Board?
• What the MCP1256/7/8/9 Charge Pump Evaluation Board Includes
FIGURE 1-1: Typical MCP1256/7/8/9 Applications.
PGOOD
GND
SHDN
1
2
3
4
MCP1256
V
OUT
5
6
7
8
9
10
V
IN
SLEEP
C
IN
10 μF
C
OUT
10 μF
C
1
-
C
1
+
C
1
1 μF
C
2
-
C
2
+
C
2
1 μF
R
1
INPUT
1.6V to 3.6V
OUTPUT
3.3V
Power-Good
Indication
ON / OFF
Typical Application with Power-Good Indication
LBO
GND
SHDN
1
2
3
4
MCP1259
V
OUT
5
6
7
8
9
10
V
IN
BYPASS
C
1
-
C
1
+
C
2
-
C
2
+
R
1
INPUT
1.6V to 3.6V
OUTPUT
3.3V
Low-Battery
Indication
ON / OFF
Typical Application with Low-Battery Indication
C
IN
10 μF
C
1
1 μF
C
OUT
10 μF
C
2
1 μF