Micrel, Inc.
MIC2810
Electrical Characteristics - DC/DC Converter
V
IN
= V
OUTDC/DC
+ 1; EN = V
IN
; EN2 = EN1 = GND; I
OUTDC/DC
= 100mA ;L = 2.2µH; C
OUTDC/DC
= 2.2µF; T
J
= 25°C,
bold
values indicate –40°C to + 125°C; unless noted.
Parameter
LOWQ = High (Full Power Mode)
Fixed Output Voltages
Output Voltage Line Regulation
Output Voltage Load Regulation
Maximum Duty Cycle
PWM Switch ON-Resistance
Oscillator Frequency
Current Limit in PWM Mode
Nominal V
OUT
tolerance
V
OUT
> 2.4V; V
IN
= V
OUT
+ 300mV to 5.5V, I
LOAD
= 100mA
V
OUT
< 2.4V; V
IN
= 2.7V to 5.5V, I
LOAD
= 100mA
20mA < I
LOAD
< 600mA
V
FB
≤
0.4V
I
SW
= 150mA V
FB
= 0.7V
FB_NOM
PMOS
I
SW
= -150mA V
FB
= 1.1V
FB_NOM
NMOS
V
FB
= 0.9*V
NOM
–2
–3
0.2
0.1
100
0.5
0.6
2
1
+2
+3
%
%
%/V
%
%
Ω
Ω
MHz
A
%
%
%/V
%/V
%
dB
mA
µV
RMS
Conditions
Min
Typ
Max
Units
1.8
0.75
–2
–3
2.2
1.6
+2
+3
0.3
0.6
1.5
220
LOWQ = Low (Light Load Mode)
Output Voltage Accuracy
Variation from nominal V
OUT
Variation from nominal V
OUT
; –40°C to +125°C
Line Regulation
V
IN
= V
OUT
+ 1V to 5.5V; I
OUT
= 100µA
Load Regulation
Ripple Rejection
Current Limit
Output Voltage Noise
I
OUT
= 100µA to 50mA
f = up to 1kHz
V
OUT
= 0V
10Hz to 100KHz
0.02
0.4
45
120
53
80
April 2007
5
M9999-041107-B
MICREL [ MICREL SEMICONDUCTOR ]
