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MIC2800-ADJ/1.2/3.3YML Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC2800-ADJ/1.2/3.3YML
Description  Digital Power Management IC 2MHz, 600mA DC/DC w/Dual 300mA/300mA Low VIN LDOs
PDF  20 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2800-ADJ/1.2/3.3YML Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2800
September 2007
5
M9999-090507-C
Electrical Characteristics - DC/DC Converter
VIN = VOUTDC/DC + 1; EN1 = VIN; EN2 = GND; IOUTDC/DC = 100mA ;L = 2.2µH; COUTDC/DC = 2.2µF; TJ = 25°C, bold values
indicate –40°C to + 125°C; unless noted.
Parameter
Conditions
Min
Typ
Max
Units
LOWQ = High (Full Power Mode)
Fixed Output Voltages
Nominal VOUT tolerance
-2
-3
+2
+3
%
%
Current Limit in PWM Mode
VFB = 0.9*VNOM
0.75
1
1.6
A
FB pin input current (ADJ only)
1
5
nA
Output Voltage Line Regulation
VOUT > 2.4V; VIN = VOUT + 300mV to 5.5V, ILOAD= 100mA
VOUT < 2.4V; VIN = 2.7V to 5.5V, ILOAD= 100mA
0.2
%/V
%/V
Output Voltage Load Regulation
20mA < ILOAD < 300mA
0.2
1.5
%
Maximum Duty Cycle
VFB ≤ 0.4V
100
%
PWM Switch ON-Resistance
ISW = 150mA VFB = 0.7VFB_NOM
ISW = -150mA VFB = 1.1VFB_NOM
0.6
0.8
Ω
Ω
Oscillator Frequency
1.8
2
2.2
MHz
Output Voltage Noise
COUT = 2.2µF; CBYP = 0.1µF; 10Hz to 100KHz
60
µVRMS
LOWQ = Low (Light Load Mode)
Variation from nominal VOUT
-2.0
+2.0
%
Output Voltage Accuracy
Variation from nominal VOUT; -40°C to +125°C
-3.0
+3.0
%
Output Voltage Temp.
Coefficient
40
ppm/C
Line Regulation
VIN = VOUT + 1V to 5.5V; IOUT = 100µA
0.02
0.3
0.6
%/V
%/V
Load Regulation
IOUT = 100µA to 50mA
0.2
1.5
%
Ripple Rejection
f = up to 1kHz; COUT = 2.2µF; CBYP = 0.1µF
f = 20kHz; COUT = 2.2µF; CBYP = 0.1µF
55
45
dB
dB
Current Limit
VOUT = 0V
80
120
190
mA



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