MCP1256/7/8/9EV Microchip Technology, MCP1256/7/8/9EV Datasheet - Page 9

• Manufacturer Part Number: MCP1256/7/8/9EV
• Description: BOARD EVAL FOR MCP1256/7/8/9
• Manufacturer: Microchip Technology

Specifications of MCP1256/7/8/9EV

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V
• Current - Output: 100mA
• Voltage - Input: 1.6 ~ 3.6V
• Regulator Topology: Buck-Boost
• Frequency - Switching: 650kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1256, MCP1257, MCP1258, MCP1259
• Processor To Be Evaluated: MCP1256/7/8/9
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

1.1
FIGURE 1-1:
© 2006 Microchip Technology Inc.
INTRODUCTION
INPUT
1.6V to 3.6V
INPUT
1.6V to 3.6V
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
Typical MCP1256/7/8/9 Applications.
C
10 μF
C
10 μF
IN
IN
ON / OFF
ON / OFF
Chapter 1. Product Overview
C
1 μF
C
1 μF
1
Typical Application with Power-Good Indication
Typical Application with Low-Battery Indication
1
EVALUATION BOARD USER’S GUIDE
10
10
7
4
8
2
7
4
8
2
MCP1256/7/8/9 CHARGE PUMP
V
SHDN
C
C
SLEEP
V
SHDN
C
C
BYPASS
IN
IN
1
1
1
1
+
-
+
-
MCP1256
MCP1259
GND
GND
PGOOD
9
9
V
V
C
OUT
LBO
OUT
C
C
C
2
2
2
2
+
-
+
-
5
1
6
3
5
1
6
3
R
C
1 μF
R
C
1 μF
1
2
1
2
C
10 μF
C
10 μF
OUT
OUT
Power-Good
Indication
Low-Battery
Indication
OUTPUT
3.3V
OUTPUT
3.3V
DS51603A-page 5