MIC29310/29312
Micrel
Typical Characteristics
MIC29312 Load Transient Response
(See Test Circuit Schematic)
V
OUT
3.525V nominal
0.1µF
93.1k
1%
4
×
330µF
AVX
TPSE337M006R0100
tantalum
MIC29312
EN
V
IN
= V
OUT
+ 1V
IN
GND
OUT
ADJ
49.9k
1%
OUTPUT VOLTAGE
+20mV
3.525V
–20mV
1ms/division
V
OUT
load (not shown):
Intel® Power Validator
LOAD CURRENT
MIC29312 Load Transient Response Test Circuit
3A
200mA
0mA
MIC29312 Line Transient Response
with 3A Load, 10µF Output Capacitance
MIC29312 Line Transient Response
with 3A Load, 100µF Output Capacitance
INPUT VOLTAGE
6.525V
4.525V
INPUT VOLTAGE
6.525V
4.525V
200µs/division
I
OUT
= 3A
C
OUT
=10µF
200µs/division
I
OUT
= 3A
C
OUT
= 100µF
OUTPUT VOLTAGE
+20mV
3.525V
–20mV
OUTPUT VOLTAGE
+20mV
3.525V
–20mV
MIC2931x Dropout Voltage
vs. Output Current
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0
1
2
OUTPUT CURRENT (A)
3
1
MIC2931x Dropout Voltage
vs. Temperature
OUTPUT VOLTAGE (V)
5.0
4.0
MIC29310-3.3
Dropout Characteristics
DROPOUT VOLTAGE (mV)
DROPOUT VOLTAGE (V)
0.8
0.6
0.4
0.2
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
I
LOAD
= 3A
I
LOAD
= 10mA
3.0
2.0
I
LOAD
= 3A
1.0
0.0
0
2
4
INPUT VOLTAGE (V)
6
July 1999
5
MIC29310/29312
MICREL [ MICREL SEMICONDUCTOR ]
