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TC1313-AM1EMF View Datasheet(PDF) - Microchip Technology

Part NameDescriptionManufacturer
TC1313-AM1EMF 500 mA Synchronous Buck Regulator,+ 300 mA LDO Microchip
Microchip Technology Microchip
TC1313-AM1EMF Datasheet PDF : 28 Pages
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TC1313
Note: Unless otherwise indicated, VIN1 = VIN2 = SHDN1,2 = 3.6V, COUT1 = CIN = 4.7 µF, COUT2 = 1 µF, L = 4.7 µH,
VOUT1 (ADJ) = 1.8V, TA = +25°C. Boldface specifications apply over the TA range of -40°C to +85°C. TA = +25°C. Adjustable or fixed-
output voltage options can be used to generate the Typical Performance Characteristics.
2.20
2.15
SHDN1 = VIN2
SHDN2 = AGND
2.10
2.05
2.00
1.95
1.90
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
Input Voltage (V)
FIGURE 2-13:
VOUT1 Switching Frequency
vs. Input Voltage.
0.65
0.60
VIN1 = 3.6V
SHDN1 = VIN2
SHDN2 = AGND
0.55
0.50
0.45
P-Channel
N-Channel
0.40
3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
FIGURE 2-16:
VOUT1 Switch Resistance
vs. Input Voltage.
2.00
1.98
1.96
1.94
1.92
1.90
SHDN1 = VIN2
SHDN2 = AGND
Ambient Temperature (°C)
FIGURE 2-14:
VOUT1 Switching Frequency
vs. Ambient Temperature.
0.70
0.65
VIN1 = 3.6V
0.60
0.55
P-Channel
N-Channel
0.50
0.45
SHDN1 = VIN2
SHDN2 = AGND
0.40
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
FIGURE 2-17:
VOUT1 Switch Resistance
vs. Ambient Temperature.
0.820
0.815
0.810
0.805
0.800
0.795
0.790
VIN1 = 3.6V
SHDN1 = VIN2
SHDN2 = AGND
Ambient Temperature (°C)
FIGURE 2-15:
VOUT1 Adjustable Feedback
Voltage vs. Ambient Temperature.
0.4
0.35
SHDN1 = VIN2
SHDN2 = AGND
0.3
0.25
0.2
0.15
0.1
VOUT1 = 3.3V
IOUT1 = 500 mA
Ambient Temperature (°C)
FIGURE 2-18:
VOUT1 Dropout Voltage vs.
Ambient Temperature.
© 2005 Microchip Technology Inc.
DS21974A-page 9
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