MCP1640T-I/CHY Microchip Technology, MCP1640T-I/CHY Datasheet - Page 19

• Manufacturer Part Number: MCP1640T-I/CHY
• Description: IC CONV DCDC STEPUP SYNC SOT23-6
• Manufacturer: Microchip Technology
• Type: Step-Up (Boost)r

Specifications of MCP1640T-I/CHY

• Package / Case: SOT-23-6
• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 5.5 V
• Current - Output: 100mA
• Frequency - Switching: 500kHz
• Voltage - Input: 0.8 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Mounting Style: SMD/SMT
• Duty Cycle (max): 90 %
• Efficiency: 96 %
• Input / Supply Voltage (max): 0.8 V
• Input / Supply Voltage (min): 0.65 V
• Load Regulation: 0.01 %
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Output Current: 350 mA
• Output Voltage: 5 V
• Switching Frequency: 500 KHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: MCP1640T-I/CHYTR

6.0
FIGURE 6-1:
FIGURE 6-2:
 2010 Microchip Technology Inc.
Note:
TYPICAL APPLICATION CIRCUITS
MANGANESE LITHIUM
DIOXIDE BUTTON CELL
2.0V TO 3.2V
FROM PIC
For applications that can operate directly from the battery input voltage during Sleep mode and
require a higher voltage during normal run mode, the MCP1640C device provides input to output
bypass when disabled. The PIC Microcontroller is powered by the output of the MCP1640C. One
of its I/O pins is used to enable and disable the MCP1640C to control its bias voltage. While
operating in Sleep mode, the MCP1640C input quiescent current is typically less than 1 uA.
Manganese Lithium Coin Cell Application using Bypass Mode.
USB On-The-Go Powered by Li-Ion.
3.3V To 4.2V
+
V
®
-
IN
MCU I/O
+
-
10
C
IN
µ
F
4.7
C
IN
µ
F
10
L
1
µ
EN
V
H
P
IN
GND
SW
4.7
L
1
µ
EN
S
V
V
V
H
GND
IN
OUTS
OUTP
SW
V
GND
FB
V
OUT
V
FB
309 K
976 K
MCP1640/B/C/D
5.0V @ 350 mA
309 K
976 K
V
OUT
C
10
5.0V @ 5 mA
OUT
µ
V
F
OUT
C
10
OUT
µ
F
DS22234A-page 19