MCP1640T-I/CHY Microchip Technology, MCP1640T-I/CHY Datasheet - Page 5

• 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

2.0
Note: Unless otherwise indicated,
FIGURE 2-1:
Temperature in PFM Mode.
FIGURE 2-2:
Temperature in PWM Mode.
FIGURE 2-3:
 2010 Microchip Technology Inc.
Note:
300
275
250
225
200
175
150
600
500
400
300
200
100
0
27.5
25.0
22.5
20.0
17.5
15.0
12.5
10.0
-40
0
TYPICAL PERFORMANCE CURVES
-40
0.5
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein are
not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
V
V
-25
OUT
IN
V
-25
IN
= 1.2V
= 2.0V
= 1.2V
1
V
-10
OUT
-10
Ambient Temperature (°C)
Ambient Temperature (°C)
1.5
= 2.0V
V
V
V
Maximum I
5
OUT
5
OUT
OUT
2
= 3.3V
V
20
20
IN
2.5
I
I
Q
Q
(V)
V
vs. Ambient
vs. Ambient
OUT
35
35
3
V
OUT
V
= 3.3V
V
IN
OUT
V
OUT
OUT
= EN = 1.2V, C
3.5
50
= 5.0V
= 5.0V
50
= 5.0V
vs. V
V
OUT
4
65
65
= 3.3V
IN
4.5
.
80
80
OUT
5
= C
IN
= 10 µF, L = 4.7 µH, V
FIGURE 2-4:
Mode Efficiency vs. I
FIGURE 2-5:
Mode Efficiency vs. I
FIGURE 2-6:
Mode Efficiency vs. I
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
100
0.01
0.01
90
80
70
60
50
40
30
20
10
0
0.01
V
OUT
MCP1640/B/C/D
= 5.0V
0.1
0.1
V
OUT
0.1
OUT
= 3.3V
= 3.3V, I
2.0V V
3.3V V
5.0V V
V
OUT
OUT
OUT
OUT
1
1
1
I
I
I
OUT
OUT
OUT
= 2.0V
.
.
.
LOAD
V
(mA)
IN
(mA)
(mA)
OUT
OUT
OUT
= 2.5V
V
IN
V
V
= 15 mA, T
10
= 0.8V
10
10
IN
IN
= 0.8V
= 1.2V
PFM / PWM
PFM / PWM
PFM / PWM
DS22234A-page 5
V
PWM / PFM
PWM ONLY
100
IN
PWM / PFM
PWM ONLY
PWM / PFM
PWM ONLY
V
100
100
= 1.2V
V
A
IN
V
IN
IN
V
= 1.6V
= +25°C.
= 2.5V
IN
= 1.2V
= 1.8V
1000
1000
1000