MIC29310/29312
Micrel
Typical Characteristics
MIC29312 Line Transient Response
with 3A Load, 100F Output Capacitance
MIC29312
EN
V
IN
= V
OUT
+ 1V
IN
GND
OUT
ADJ
49.9k
1%
0.1µF
93.1k
1%
INPUT VOLTAGE
V
OUT
3.525V nominal
4
×
330µF
AVX
TPSE337M006R0100
tantalum
6.525V
4.525V
200s/division
V
OUT
load (not shown):
Intel® Power Validato
r
OUTPUT VOLTAGE
MIC29312 Load Transient Response Test Circuit
+20mV
3.525V
–20mV
I
OUT
= 3A
C
OUT
= 100F
MIC29312 Line Transient Response
with 3A Load, 10F Output Capacitance
MIC29312 Load Transient Response
(See Test Circuit Schematic)
INPUT VOLTAGE
6.525V
4.525V
OUTPUT VOLTAGE
+20mV
3.525V
–20mV
1ms/division
200s/division
I
OUT
= 3A
C
OUT
=10F
OUTPUT VOLTAGE
3.525V
–20mV
LOAD CURRENT
+20mV
3A
200mA
0mA
0.60
DROPOUT VOLTAGE (V)
MIC2931x Dropout Voltage
vs. Output Current
DROPOUT VOLTAGE (mV)
1
0.8
0.6
0.4
0.2
MIC2931x Dropout Voltage
vs. Temperature
OUTPUT VOLTAGE (V)
5.0
4.0
MIC29310-3.3
Dropout Characteristics
0.50
0.40
0.30
0.20
0.10
0.00
0
1
2
OUTPUT CURRENT (A)
3
I
LOAD
= 10mA
3.0
2.0
I
LOAD
= 3A
1.0
0.0
I
LOAD
= 3A
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
0
2
4
INPUT VOLTAGE (V)
6
November 2006
5
MIC29310/29312
MICREL [ MICREL SEMICONDUCTOR ]
