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MIC2829 데이터시트(PDF) 8 Page - Micrel Semiconductor

부품명 MIC2829
상세설명  3G/4G HEDGE/LTE PMIC with Six Buck Converters, Eleven LDOs and SIM Card Level Translation
PDF  52 Pages
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제조업체  MICREL [Micrel Semiconductor]
홈페이지  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2829 데이터시트(HTML) 8 Page - Micrel Semiconductor

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Micrel Inc.
MIC2829
May 2010
8
M9999-051410-B
Electrical Characteristics – Buck Regulator (DC1 – DC4)
TA=25°C, AVINx = VSC2 = ENGLB = ENDC2 = 4.3V, L3 = 1.0µH, L1, 2, 4 = 2.2µH, COUT = 4.7µF, IOUT = 20mA, unless
noted. Bold values indicate -40°C
≤ T
J ≤ 125°C.
Parameter
Condition
Min
Typ
Max
Unit
VOUT = VOUTNOM x 0.9, DC1
1
1.4
VOUT = VOUTNOM x 0.9, DC3 & 4
0.65
1.5
Switch Current Limit
VOUT = VOUTNOM x 0.9, DC2
0.33
1.1
A
Output Voltage Accuracy
-3
3
%
Line Regulation
4.3V
≤ AVIN ≤ 5.5V, Iout = 20mA
0.4
%/V
Load Regulation
150mA
≤ IOUT ≤ 400mA
0.5
%
ISW1,3 = -100mA NMOS, DC1 & 3
ISW4 = -100mA NMOS, DC4
ISW2 = -100mA NMOS, DC2
0.4
0.45
0.6
HLL Buck Switch ON Resistance
ISW3 = +100mA PMOS, DC3
ISW1, 4 = +100mA PMOS, DC1 & 4
ISW2 = +100mA PMOS, DC2
0.5
0.6
1.1
Ω
Soft Start Time
VOUT = 90%
600
µs
Scale Transition Time DC2
DC2 only. Time to reach 90% target.
100
µs
DC1, 2, 4 ILOAD = 120mA
4
Frequency
DC3
ILOAD = 120mA
2.5
MHz
RESETB on DC4
VTH Falling
Low Threshold, % of nominal DC4 output (Flag ON)
85
%
VTH Rising
High Threshold, % of nominal DC4 output (Flag OFF)
96
%
VOL
RESETB logic low voltage; IL = 250µA
0.02
0.05
V
IRESETB
Flag Leakage Current, Flag OFF
-1
0.1
+1
µA
SETDLY input on DC4
SETDLY Current Source
VSETDLY = 0V
0.75
1.45
1.75
µA
SETDLY Threshold Voltage
RESETB = High
1.241
V



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