MCP1640EV-SBC Microchip Technology, MCP1640EV-SBC Datasheet - Page 12

• Manufacturer Part Number: MCP1640EV-SBC
• Description: BOARD EVAL FOR MCP1640
• Manufacturer: Microchip Technology
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MCP1640EV-SBC

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 2V, 3.3V or 5V
• Current - Output: 100mA, 350mA
• Voltage - Input: 0.35 ~ 5.5V
• Regulator Topology: Boost
• Frequency - Switching: 500kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1640
• Input Voltage: 0.35 V to 5.5 V
• Output Voltage: 3.3 V to 5 V
• Operating Supply Voltage: 0.35 V to 5.5 V
• Product: Power Management Modules
• Supply Current: 300 mA
• Kit Contents: Board
• Features: Automatic PFM/PWM Operation, Enable State Selectable Using Mini-Dip Switch On Board
• Svhc: No SVHC (15-Dec-2010)
• Core Architecture: Power Management - Voltage Regulator
• Rohs Compliant: Yes
• For Use With/related Products: MCP1640
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP1640 Single Quadruple-A Battery Boost Converter Reference Design
DS51922A-page 12
2.1.2
The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design is
developed to demonstrate how the MCP1640 device with True Output Disconnect
Shutdown option is working attached to a microcontroller application. The board
demonstrates how to optimize battery life using MCP1640 and an 8-bit low cost PIC
microcontroller, to reduce the No Load Input Current for applications that operate in
Standby mode for a longer period of time.
FIGURE 2-1:
Reference Design Block Diagram.
The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design has the
following features:
• Input voltage: one AAAA Alkaline battery
• Output voltage: 3.3V
• Output current: < 130 mA
• Up to 75% efficiency
• Standby battery current: 14.5 µA @ 1.5V input
• Start-up voltage: 0.65V at V
• Automatic PFM/PWM operation
• PWM Switching Frequency = 500 kHz
• ON/OFF switch button, with approximately 25 seconds ON
• LED status indication (Output ON and Low Battery)
• Energizer
load
Single Quadruple-A Battery Input
1
ON/OFF
S1
MCP1640 Single Quadruple-A Battery Boost Converter
Reference Design Features
®
2
Battery Holder with reverse battery protection
I/O
PIC12F617
MCP1640 Single Quadruple-A Battery Boost Converter
A/D
V
I/O
I/O
I/O
DD
IN
Status
= 1.2V, V
OUT
LED
MCP1640
= 3.3V and I
EN
V
IN
V
OUT
OUT
© 2010 Microchip Technology Inc.
Load Switch
P-MOS
= 1 mA, resistive
Load