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MIC2128 Datenblatt(PDF) 7 Page - Microchip Technology

Teilenummer MIC2128
Bauteilbeschribung  75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start
PDF  32 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC2128 Datenblatt(HTML) 7 Page - Microchip Technology

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 2016 Microchip Technology Inc.
DS20005620A-page 7
MIC2128
Note:
Unless otherwise indicated, VVIN =12V, fSW =300 kHz, RILIM =1.5 k, L = 10 µH, VEXTVDD =VOUT, TA =+25°C
(refer to the Typical Application circuit).
FIGURE 2-7:
PVDD Load Regulation.
FIGURE 2-8:
VDD UVLO Threshold vs.
Temperature.
FIGURE 2-9:
EXTVDD Threshold vs.
Temperature.
FIGURE 2-10:
Enable Threshold vs.
Temperature.
FIGURE 2-11:
Enable Bias Current vs.
Temperature
FIGURE 2-12:
Switching Frequency vs.
Input Voltage.
4
4.2
4.4
4.6
4.8
5
5.2
0
102030405060
I
PVDD (mA)
V
VIN = 48V
V
EN = VVIN
V
EXTVDD = 5V
EXTVDD = GND
V
EXTVDD = 12V
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
-50
-25
0
25
50
75
100
125
Temperature (°C)
I
VDD = 0 mA
EXTVDD = GND
V
VDD falling
V
VDD rising
4.2
4.3
4.4
4.5
4.6
4.7
4.8
-50
-25
0
25
50
75
100
125
Temperature (°C)
V
EXTVDD falling
V
EXTVDD rising
0.6
0.8
1.0
1.2
1.4
1.6
-50
-25
0
25
50
75
100
125
Temperature (°C)
V
EN falling
V
EN rising
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
-50
-25
0
25
50
75
100
125
Temperature (°C)
V
VIN = 12V
V
EN = 5V
220
230
240
250
260
270
280
290
300
310
320
6
121824303642485460667278
Input Voltage (V)
V
OUT = 5V
F
SW_SETPOINT = 300 kHz
V
EXTVDD = VOUT
V
EN = VVIN
I
OUT =0A
I
OUT = 5A



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