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MIC24053 데이터시트 PDF : 부품 기능 및 핀배열

부품번호 MIC24053
기능 High-Efficiency Buck Regulator
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MIC24053 데이터시트 및 MIC24053 PDF

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MIC24053 pdf, 반도체, 판매, 대치품
MIC24053
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Characteristics: Unless otherwise indicated, PVIN = VIN = VEN = 12V, VBST – VSW = 5V; TA = 25°C. Bold
values indicate –40°C TJ +125°C
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Reference
Feedback Reference Voltage
Load Regulation
Line Regulation
FB Bias Current
Enable Control
EN Logic Level High
EN Logic Level Low
EN Bias Current
Oscillator
Switching Frequency (Note 2)
Maximum Duty Cycle (Note 3)
Minimum Duty Cycle
Minimum Off-Time
0.792
0.788
0.8
0.8
0.25
0.25
50
0.808
0.812
1.8
——
—6
0.6
30
450 600
— 82
—0
— 300
750
V 0°C TJ 85°C (±1.0%)
40°C TJ 125°C (±1.5%)
%
IOUT = 0A to 9A (Continuous
Mode)
% VIN = 4.5V to 19V
nA VFB = 0.8V
V—
V—
μA VEN = 12V
kHz VOUT = 2.5V
% VFB = 0V
% VFB = 1.0V
ns —
Soft-Start
Soft-Start Time
—3
— ms —
Short-Circuit Protection
Peak Inductor Current-Limit
Threshold
Short-Circuit Current
Internal FETs
12.5
11.25
14
14
8
20
20
A VFB = 0.8V, TJ = 25°C
A VFB = 0.8V, TJ = 125°C
A VFB = 0V
Top-MOSFET RDS(ON)
— 27 — mΩ ISW = 3A
Bottom-MOSFET RDS(ON)
SW Leakage Current
— 10.5
——
60
mΩ ISW = 3A
μA VEN = 0V
VIN Leakage Current
— — 25 μA VEN = 0V
Power Good (PG)
PG Threshold Voltage
85 92
95 %VOUT Sweep VFB from Low to High
PG Hysteresis
— 5.5
— %VOUT Sweep VFB from High to Low
PG Delay Time
— 100
μs Sweep VFB from Low to High
PG Low Voltage
70
200
mV
Sweep VFB 0.9 VNOM,
IPG = 1 mA
Note 1:
2:
3:
Specification for packaged product only.
Measured in test mode.
The maximum duty-cycle is limited by the fixed mandatory off-time (tOFF) of typically 300 ns.
DS20005668A-page 4
2015 Microchip Technology Inc.

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MIC24053 전자부품, 판매, 대치품
MIC24053
2.0 TYPICAL PERFORMANCE CURVES
Note:
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.
25 0.808
20
15
10
5 VOUT = 1.8V
IOUT = 0A
SWITCHING
0
4 7 10 13 16
INPUT VOLTAGE (V)
FIGURE 2-1:
VIN Operating Supply
Current vs. Input Voltage.
19
0.804
0.800
0.796
0.792
4
FIGURE 2-4:
Voltage.
VOUT = 1.8V
IOUT = 0A
7 10 13 16 19
INPUT VOLTAGE (V)
Feedback Voltage vs. Input
60
VEN = 0V
REN = OPEN
45
0.2%
0.1%
30 0.0%
15
0
4 7 10 13 16 19
INPUT VOLTAGE (V)
FIGURE 2-2:
Input Voltage.
VIN Shutdown Current vs.
10
8
6
4
2
VFB = 0.8V
IDD = 10mA
0
4 7 10 13 16 19
INPUT VOLTAGE (V)
FIGURE 2-3:
Input Voltage.
VDD Output Voltage vs.
-0.1%
-0.2%
4
FIGURE 2-5:
Voltage.
VOUT = 1.8V
I OUT = 0A to 9A
7 10 13 16 19
INPUT VOLTAGE (V)
Total Regulation vs. Input
20
15
10
5
VOUT = 1.8V
0
4 7 10 13 16 19
INPUT VOLTAGE (V)
FIGURE 2-6:
Input Voltage.
Output Current Limit vs.
2015 Microchip Technology Inc.
DS20005668A-page 7

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