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TC1313-AA0EMF Datasheet(PDF) 11 Page - Microchip Technology

Part No. TC1313-AA0EMF
Description  500 mA Synchronous Buck Regulator, 300 mA LDO
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Maker  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
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TC1313-AA0EMF Datasheet(HTML) 11 Page - Microchip Technology

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© 2005 Microchip Technology Inc.
DS21974A-page 11
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.
FIGURE 2-25:
VOUT2 Dropout Voltage vs.
Ambient Temperature (VOUT2 = 2.5V).
FIGURE 2-26:
VOUT2 Dropout Voltage vs.
Ambient Temperature (VOUT2 = 3.3V).
FIGURE 2-27:
VOUT2 Line Regulation vs.
Ambient Temperature.
FIGURE 2-28:
VOUT2 Load Regulation vs.
Ambient Temperature.
FIGURE 2-29:
VOUT2 Power Supply Ripple
Rejection vs. Frequency.
FIGURE 2-30:
VOUT2 Noise vs. Frequency.
0.05
0.10
0.15
0.20
0.25
0.30
Ambient Temperature (°C)
IOUT2 = 200 mA
IOUT2 = 300 mA
SHDN1 = AGND
SHDN2 = VIN2
0.0
0.1
0.2
0.3
-40 -25 -10
5
20 35 50 65
80 95 110 125
Ambient Temperature (°C)
IOUT2 = 200 mA
SHDN1 = AGND
SHDN2 = VIN2
IOUT2 = 300 mA
-0.035
-0.030
-0.025
-0.020
-0.015
-0.010
-0.005
0.000
0.005
-40 -25 -10
5
20
35
50
65
80
95 110 125
Ambient Temperature (°C)
VOUT2 = 3.3V
IOUT2 = 100 µA
SHDN1 = AGND
SHDN2 = VIN2
VOUT2 = 2.5V
VOUT2 = 1.5V
-0.4
-0.3
-0.2
-0.1
0.0
0.1
Ambient Temperature (°C)
VOUT2 = 3.3V
VIN2 = 3.6V
SHDN1 = AGND
SHDN2 = VIN2
VOUT2 = 2.6V
VOUT2 = 1.5V
-80
-70
-60
-50
-40
-30
-20
-10
0
0.01
0.1
1
10
100
1000
Frequency (kHz)
SHDN1 = GND
VOUT2 = 1.5V
IOUT2 = 30 mA
CIN = 0 µF
COUT2 = 1.0 µF
COUT2 = 4.7 µF
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
10000
Frequency (kHz)
SHDN1 = AGND
SHDN2 = VIN2
VIN = 3.6V
VOUT2 = 2.5V
IOUT2 = 50 mA


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