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MIC2230 Datasheet(PDF) 4 Page - Micrel Semiconductor

Part # MIC2230
Description  Dual Synchronous DC/DC Regulator
PDF  18 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2230 Datasheet(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2230
April 2010
4
M9999-040810-C
Absolute Maximum Ratings
(1)
Supply Voltage (VIN).......................................................+6V
Enable 1 Voltage ………………………………………... +6V
Enable 2 Voltage ……………………………………….. +6V
Logic Input Voltage (VEN, VFPWM)............................ 0V to VIN
Storage Temperature (TS) ........................–65°C to +150°C
ESD .............................................................................. 2KV
Operating Ratings
(2)
Supply Voltage (VIN) ........................................ 2.5V to 5.5V
Junction Temperature (TJ) ........................–40°C to +125°C
Package Thermal Resistance (
θJA)..........................60°C/W
Electrical Characteristics
(4)
TA = 25°C with VIN = VEN1 = VEN2 =3.6V, VOUT1, VOUT2, L= 2.2µH, C = 10µF, unless otherwise specified. Bold values indicate –40ºC ≤ TJ
≤ +125ºC.
Parameter
Condition
Min
Typ
Max
Units
Supply Voltage and Current
Supply Voltage Range
2.5
5.5
V
UVLO (rising)
2.3
2.4
2.5
V
UVLO Hysteresis
100
mV
PWM Mode Supply
Current
/FPWM = Low; VOUT1, VOUT2= 1.03 * VNOM (not switching)
560
950
µA
Trickle Mode
TM Supply
Current
/FPWM = High; VOUT1, VOUT2= 1.03 * VNOM (not switching)
28
50
µA
Shutdown Quiescent
Current
VEN = 0V
0.1
1
µA
Output Voltage Accuracy
Feedback voltage, VFB
Adjustable
0.780
0.8
0.820
V
Output voltage, VOUT
Fixed Output Options
-2.5
+2.5
%
Feedback bias current
10
nA
Output Voltage Line
Regulation
2.5V
≤ VIN ≤ 5.5V
0.1
0.5
%
Output Voltage Load
Regulation
VIN = 5V, IOUT = 10mA to 800mA, /FPWM = 0V
VIN = 3V; IOUT = 10mA to 800mA, /FPWM = 0V
0.5
%
Ripple in Trickle Mode
TM
VIN=3.6V; IOUT = 1mA; COUT = 10µF, L = 2.2µH.
40
mV
Logic Inputs
On
0.8
1.2
V
EN Input Threshold
Off
0.3
0.7
V
EN Input Current
0.01
1
µA
On
0.6×VIN
V
/FPWM Input Threshold
Off
0.3×VIN
V
/FPWM Input Current
0.01
1
µA



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