MIC2150 Datasheet, PDF (5/27 Pages) Micrel Semiconductor – 2-Phase Dual Output PWM Synchronous Buck Control IC

Micrel, Inc.
Parameter
Condition
Regulation
Feedback Voltage
Reference
(Each Channel) 25^oC
(Each Channel) –40°C to +125°C
Feedback Bias Current (Each Channel)
Output Voltage Line
Regulation
(Each Channel)
Error Amplifier (Each Channel)
DC Gain ⁽⁶⁾
Output Over voltage Protection (each channel)
V_FB threshold
Delay Blanking time
(Latches LSD High)
Soft-Start
Internal Soft-Start source V_SS = 1V
current (each channel)
Soft-Start source current
matching between
channels
Internal Soft-Start
discharge current (each
channel)
During Soft Current Limit
Current Sense (Each Channel)
CS Over Current Trip
Point program current
CS comparator sense
threshold
Power Good
V_FB threshold
PGOOD voltage low
V_IN = 4.5V, V_FB = 0 V; I_PGOOD = 1mA
Output Dynamic Correction Thresholds
Upper Threshold,
V_{FB_OVT} ⁽⁶⁾
Lower Threshold,
V_{FB_UVT} ⁽⁶⁾
Gate Drivers
(relative to V_FB).
(relative to V_FB).
Rise/Fall Time
Into 3000pF
Low-Side Drive
Resistance
High-Side Drive
Resistance
Notes:
6. Guaranteed by design.
V_IN = 5V
V_IN = 5V
August 2009
5
MIC2150
Min Typ Max Units
691 700
709
mV
686
714
35
500
nA
0.03
%/V
70
dB
110 115
120
%Nom
2
μs
1.25
2
2.75
μA
1
3
–30
0
30
%
18
μA
170 200
230
μA
–7
0
+7
mV
86
90
93
%Nom
0.1
0.3
V
+6.5
%
–6.5
%
Rise
Fall
Source
Sink
Source
Sink
23
ns
16
ns
1.5
3
Ω
1.5
2
Ω
1.5
3
Ω
1.5
2
Ω
M9999-082809-A
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