MI
KRON
JS
C
ht
t
p
:
//ww
w
.mikron.ru
02 Oc
to
ber
20
03
MIK5205 Series
5A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
1
DATA SHEET
02 O
CTOBER
2003
N
O
. 00019
R
EV
1-03
CONTENTS
Page
GENERAL DESCRIPTION
1
APPLICATIONS
1
FEATURES
1
BLOCK DIAGRAM
2
PIN ASSIGNMENTS
2
TYPICAL APPLICATION CIRCUIT
2
FIXED VOLTAGE REGULATOR
2
ADJUSTABLE VOLTAGE REGULATOR
2
ABSOLUTE MAXIMUM RATINGS
2
ELECTRICAL CHARACTERISTICS
3
TYPICAL CHARACTERISTICS
4
DROPOUT VOLTAGE (V
IN
V
OUT
)
4
MINIMUM OPERATING CURRENT (ADJUSTABLE
DEVICE)
4
SHORT-CIRCUIT CURRENT
4
LOAD REGULATION
4
MIK5205 RIPPLE REJECTION
4
MIK5205 RIPPLE REJECTION
VS
. CURRENT
4
TEMPERATURE STABILITY
5
ADJUST PIN CURRENT
5
TYPICAL APPLICATIONS
5
CONTENTS
Page
1.2V TO 5.5V ADJUSTABLE REGULATOR
5
5V REGULATOR WITH SHUTDOWN
5
BATTERY CHARGER
5
RIPPLE REJECTION ENHANCEMENT
5
GENERATING NEGATIVE SUPPLY VOLTAGE
5
AUTOMATIC LIGHT CONTROL
5
BATTERY BACKUP REGULATED SUPPLY
5
5V TO 3.3V, 5A REGULATOR
5
ADJUSTABLE 5V REGULATOR
5
REMOTE SENSING
6
APPLICATION INFORMATION
7
STABILITY
7
PROTECTIONS DIODES
7
OUTPUT VOLTAGE
7
LOAD REGULATION
7
RIPPLE REJECTION
8
PHYSICAL DIMENSIONS AND MARKING
DIAGRAMS
9
TO-220-3
9
TO-263-3
9
ORDERING INFORMATION
10
GENERAL DESCRIPTION
The MIK5205 series of positive adjustable and fixed
regulators are designed to provide 5A with higher
efficiency than currently available devices. All
internal circuitry is designed to operate down to 1V
input to output differential and the dropout voltage
is fully specified as a function of load current.
Dropout voltage of the device is 1V at light loads
and rising to 1.15V at maximum output current. On-
chip trimming adjusts the reference voltage to 1%.
APPLICATIONS
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Microprocessor Supply
Adjustable Power Supply
FEATURES
Adjustable or Fixed Output
Output Current of 5A
Low Dropout, 1.15V at 5A Output Current
0.04% Line Regulation
0.08% Load Regulation
100% Thermal Limit Burn-In
Fast Transient Response
REPLACEMENT OF:
CS 5205
AMC 7585
AMS 1084
B 1585
LM 1084
MIC 2950
MIK5205-xx series
5A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
2
Design by Vladimir F.Lityaghin / E-mail: lityaghin@mail.ru / Tel: +7(095)532-64-54
MI
KRON
JS
C
h
ttp
:
/
/www.
m
i
kr
o
n
.
r
u
02 Oc
to
ber
20
03
5A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
MIK5205 Series
TAB
C1
C2
R1
R2
232
1%
133
1%
10F
22F
V
IN
> 4.75V
V
OUT
= 3.45V
V
IN
V
OUT
MIK5205
ADJ
!
2
!
3
!
1
!
!
!
!
!
!
!
BLOCK DIAGRAM
!
!
!
GND
ADJ
OUT
IN
FOR FIXED VOLTAGE DEVICE
THERMAL
LIMIT
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
!
!
!
!
ABSOLUTE MAXIMUM RATINGS
TYPICAL APPLICATION CIRCUIT
FIXED VOLTAGE REGULATOR
NOTES:
C1 needed if device is far from filter capacitors
C2 minimum value required for stability
PIN ASSIGNMENTS
MIK5205-xx
T
, MIK5205
T
TO-220-3
TAB
-- V
OUT
1 -- ADJ/GND
2 -- V
OUT
3 -- V
IN
MIK5205-xx
D2T
, MIK5205
D2T
TO-263-3
TAB
-- V
OUT
1 -- ADJ/GND
2 -- V
OUT
3 -- V
IN
TAB
2
1
3
TAB
2
1
3
ADJUSTABLE VOLTAGE REGULATOR
(
)
2
1
1
2
R
I
V
V
ADJ
R
R
REF
OUT
+
+
=
C1
C2
10F
22F
V
IN
> 4.75V
V
OUT
= 3.3V
V
IN
V
OUT
MIK5205-3.3
GND
TAB
!
2
!
3
!
1
!
!
!
!
!
SYMBOL
PARAMETER
MAXIMUM
UNIT
P
D
Power Dissipation
Internally Limited
W
V
IN
Input Voltage
7
V
Operating Junction Temperature Range
Control Section
0 to 125
C
T
J
Power Transistor
0 to 150
T
STG
Storage Temperature
-65 to 150
C
T
LEAD
Lead Temperature (Soldering, 10 sec)
300
C
MI
KRON
JS
C
ht
t
p
:
//ww
w
.mikron.ru
02 Oc
to
ber
20
03
MIK5205 Series
5A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
3
The # denotes the specifications which apply over the full temperature range.
Note 1: For MIK5205 (adjustable) Vadj = 0V
Note 2: For the adjustable device the minimum load current is the minimum current required to maintain regulation.
Normally the current in the resistor divider used to set the output voltage is selected to meet the minimum load
current requirement.
Note 3: The specification represent the minimum input/output voltage required to maintain 1% regulation.
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
LOAD
= 0 mA and T
J
= +25
C unless otherwise specified.
PARAMETER
DEVICE
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Voltage
(Note 1)
MIK5205
V
IN
= 2.75V, I
LOAD
= 10mA
V
IN
= 2.7V to 7V, I
LOAD
= 10mA to 5A
#
1.238
1.230
1.250
1.250
1.262
1.270
V
MIK5205-1.5
V
IN
= 4.0V
V
IN
= 3.0V, I
LOAD
= 0mA to 5A
#
1.485
1.475
1.500
1.500
1.515
1.525
V
MIK5205-1.8
V
IN
= 4.3V
V
IN
= 3.3V, I
LOAD
= 0mA to 5A
#
1.782
1.771
1.800
1.800
1.818
1.829
V
MIK5205-2.5
V
IN
= 5.0V
V
IN
= 4.0V, I
LOAD
= 0mA to 5A
#
2.475
2.460
2.500
2.500
2.525
2.540
V
MIK5205-2.85
V
IN
= 5.35V
V
IN
= 4.40V, I
LOAD
= 0mA to 5A
#
2.821
2.805
2.850
2.850
2.879
2.895
V
MIK5205-3.0
V
IN
= 5.5V
V
IN
= 4.5V, I
LOAD
= 0mA to 5A
#
2.970
2.950
3.000
3.000
3.030
3.050
V
MIK5205-3.3
V
IN
= 5.8V
V
IN
= 4.8V, I
LOAD
= 0mA to 5A
#
3.267
3.247
3.300
3.300
3.333
3.353
V
MIK5205-3.5
V
IN
= 6.0V
V
IN
= 5.0V, I
LOAD
= 0mA to 5A
#
3.465
3.445
3.500
3.500
3.535
3.555
V
Output Voltage
MIK5205-5.0
V
IN
= 7.5V
V
IN
= 6.5V, I
LOAD
= 0mA to 5A
#
4.950
4.920
5.000
5.000
5.050
5.080
V
Line Regulation
(Note 1)
All
I
LOAD
= 10mA, (1.5V+ V
OUT
)
V
IN
7V
#
0.04 0.2 %
Load Regulation
(Note 1)
All
V
IN
= V
OUT
+2.5V, I
LOAD
= 10mA to 5A
#
0.08 0.4 %
Minimum Load Current
(Note 1, 2)
MIK5205
V
IN
= 5V
#
5 10
mA
Ground Pin Current
MIK5205-
1.5 / 1.8/ 2.5/
2.85/ 3.0/ 3.3/
3.5 / 5.0
V
IN
= V
OUT
+2.5V, I
LOAD
= 10mA to 5A
#
6 10
mA
Adjust Pin Current
(Note 1)
MIK5205
V
IN
= 2.75V, I
LOAD
= 10mA
#
50 120 A
Current Limit
(Note 1)
All
(V
IN
- V
OUT
) = 3V
#
5.5 6.8
A
Ripple Rejection
(Note 1)
All
V
IN
= V
OUT
+ 2.5V, I
LOAD
= 1.5A
60 80 dB
Thermal Regulation
(Note 1)
MIK5205
T
A
= 25C, 30ms pulse
0.003 %/W
Dropout Voltage
(Note 1, 3)
All
I
LOAD
= 10mA
I
LOAD
= 5A
#
1.00
1.15
1.15
1.30
V
4
Design by Vladimir F.Lityaghin / E-mail: lityaghin@mail.ru / Tel: +7(095)532-64-54
MI
KRON
JS
C
h
ttp
:
/
/www.
m
i
kr
o
n
.
r
u
02 Oc
to
ber
20
03
5A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
MIK5205 Series
TYPICAL CHARACTERISTICS
DROPOUT VOLTAGE (V
IN
V
OUT
)
MINIMUM OPERATING CURRENT
(ADJUSTABLE DEVICE)
SHORT-CIRCUIT CURRENT
LOAD REGULATION
MIK5205 RIPPLE REJECTION
MIK5205 RIPPLE REJECTION versus CURRENT
I
LOAD
= 5A
0.10
0.05
-0.05
-0.10
-0.15
-0.20
25
50
75
100
125
0
0
OU
T
P
U
T
V
O
L
T
AG
E
D
E
V
I
A
T
I
O
N
(%
)
TEMPERATURE (C)
T
J
= 125C
T
J
= 25C
T
J
= 0C
1
1
2
2
3
3
4
4
5
6
7
0
M
I
NI
M
U
M
OP
E
R
A
T
I
N
G C
U
R
R
E
NT
(m
A
)
INPUT OUTPUT DIFFERENTIAL
/
(V)
(
-
)
V V
IN
OUT
3V
(
-
)
V V
IN
OUT
V
DROPOUT
C
f
ADJ
= 200F at < 60Hz
C
f
I
ADJ
OUT
= 22F at > 60Hz
= 1.5A
10
20
30
40
50
60
70
80
90
100
10
100
1k
10k
100k
0
R
I
PPLE
R
E
J
E
C
T
I
O
N
(d
B
)
FREQUENCY (Hz)
V
RIPPLE
0.5V
P-P
V
RIPPLE
3V
P-P
V
RIPPLE
3V
P-P
f
RIPPLE
= 120Hz
f
RIPPLE
= 20kHz
V
RIPPLE
0.5V
P-P
V
C
OUT
OUT
= 5V
= 25F
C
ADJ
= 25F
10
20
30
40
50
60
70
80
90
100
0.25
0.5
0.75
1.25
1.5
1.0
0
R
I
PPLE
R
E
J
E
C
T
I
O
N
(d
B
)
OUTPUT CURRENT (A)
3
2
1
4
5
6
8
7
9
1
2
3
4
5
6
7
0
SHO
R
T
CI
RCU
I
T
CU
RRE
N
T
(A
)
INPUT OUTPUT DIFFERENTIAL
/
(V)
T
J
= 125C
T
J
= 25C
T
J
= 25C
T
J
= 125C
1.4
1.6
1.8
2.0
1.2
1.0
0.8
0.6
0.4
0.2
5
1
2
3
4
0
DR
O
P
O
U
T V
O
L
T
A
G
E
(V
)
OUTPUT CURRENT (A)
MI
KRON
JS
C
ht
t
p
:
//ww
w
.mikron.ru
02 Oc
to
ber
20
03
MIK5205 Series
5A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
5
1.2V to 5.5V ADJUSTABLE
REGULATOR
5V REGULATOR WITH SHUTDOWN
BATTERY CHARGER
* N
EEDED
IF
DEVICE
IS
FAR
FROM
FILTER
CAPACITOR
** V
OUT
= 1.25V x (1 + (R2/R1))
RIPPLE REJECTION ENHANCEMENT
GENERATING NEGATIVE SUPPLY
VOLTAGE
AUTOMATIC LIGHT CONTROL
*C1
IMPROVES
RIPPLE
REJECTION
. X
C
SHOULD
BE
R1
AT
RIPPLE
FREQUENCY
BATTERY BACKUP REGULATED
SUPPLY
5V TO 3.3V, 5A REGULATOR
ADJUSTABLE 5V REGULATOR
V
IN
V
OUT
= -12V
FLOATING INPUT
10 000F
100F
MIK5205
IN
OUT
ADJ
TYPICAL APPLICATIONS
TYPICAL CHARACTERISTICS
(CONTINUED)
TEMPERATURE STABILITY
ADJUST PIN CURRENT
10
20
30
40
50
60
70
80
90
100
25
50
75
100
125
0
A
D
J
U
ST
P
I
N
CURRE
N
T
(
A
)
TEMPERATURE (C)
-2.0
-1.0
1.0
2.0
0
25
50
75
100
125
0
O
U
TP
UT
V
O
L
T
A
G
E
CHA
N
G
E
(%
)
TEMPERATURE (C)
MIK5205
1.25V
IN
V
IN
V
OUT
R
S
R1
R2
OUT
I
F
ADJ
+
-
+
-
=
R1
R2
R
R1
R2
V
I
S
OUT
F
1
1
1.25V
+
-
=
R1
R2
R
V
I
S
OUT
F
1
1
V
IN
5.2V
5.0V
LINE
BATTERY
SELECT FOR
CHARGE RATE
6.5V
50
10F
10F
100F
MIK5203-
5.0
IN
OUT
GND
MIK5203-
5.0
IN
OUT
GND
MIK5203
10F
100F
1.2k
IN
OUT
ADJ
!
MIK5205
MIK5205
MIK5205
V
IN
TTL
5V
100F
121
1%
1k
1k
2N3904
10F
365
1%
IN
OUT
ADJ
MIK5205
V
IN
**
V
OUT
C1
*
10F
Tantalum
C2
10F
Tantalum
R2
5k
R1
121
IN
OUT
ADJ
MIK5205
IN
OUT
ADJ
V = 5V
OUT
V
IN
6.5V
10F
R2
365
1%
R1
121
1%
C1*
10F
150F
MIK5205
IN
OUT
ADJ
10F
Tantalum
*
22F
Tantalum
3.3V at 5A
V
IN
4.75V
MIK5205
IN
OUT
ADJ
5V
5A
at
V
IN
6.5V
10F
22F*
Tantalum
365
1%
121
1%
PDF 
ZIP