Minilogic ML63SC Dc-dc converter small number of external components: inductor, diode and capacitor Datasheet

ML63S
ML63S Series DC-DC Converter
 Application
 Features





Power Source of Portable Products
Palmtops
Portable Cameras and Video Recorders
Wireless mouse and keyboard
 Ordering Information
Designator
a
b
c
d
e
ML63S
Version
ML63SA
ML63SB
ML63SC
ML63SD
ML63SE
ML63SF






Description
Version
Output Voltage
eg. 30=3.0V
Small number of external components: inductor, diode and
capacitor.
Ultra low input current : Typical 7 uA
Output Voltage Accuracy : +/- 2.5 %
Low ripple and noise
Low startup voltage : Max 0.9V (with 1mA input)
High Efficiency: Typical 85%
Package Available:
SOT- 89 (500mW), SOT-23 (150mW) & TO - 92
(300mW)
 General Description
The ML63S is a group of PFM Step-up DC/DC
converter IC with low supply current by CMOS
process.
33=3.3V
50=5.0V
Package Type
P = SOT-89
M = SOT-23
T = TO-92
Device Orientation
R = Embossed Tape
(Orientation of Device : Right)
L = Embossed Tape
(Orientation of Device : Left)
B = Bag (TO-92)
It consists of an oscillator, a PFM control circuit, a
Lx switch driver transistor, a reference voltage unit,
an error amplifier for voltage detection and a Lx
switch protection circuit. It is suitable for use with
battery-powered instruments with low noise and
low supply current.
G = Lead Free Part
Package
Designator
M
P
T
M
P
T
M
P
M
P
M
P
M
P
Package
SOT23-3
SOT89-3
TO-92
SOT23-3
SOT89-3
TO-92
SOT23-5
SOT89-5
SOT23-5
SOT89-5
SOT23-5
SOT89-5
SOT23-5
SOT89-5
Switching
Transistor
CE
Function
VDD Pin
FB Pin
Features
Build-in
Transistor
No
No
No
Lx
External
Transistor
No
No
No
Ext
Yes
No
No
Lx+CE
Yes
No
No
Ext+CE
No
Yes
No
Lx+VDD
No
Yes
Yes
FB
Build-in
Transistor
External
Transistor
Build-in
Transistor
Build-in
Transistor
P1/11
Rev. D, August 2011
ML63S
 Marking
SOT23:
ML63SA Series
Part No.
ML63SA30MRG
ML63SA33MRG
ML63SA36MRG
ML63SA45MRG
ML63SA50MRG
Marking
7BXX
77XX
74XX
7KXX
70XX
Description
XX = Production Date
Code
e.g. B2
ML63SC Series
Part No.
ML63SC30MRG
ML63SC33MRG
ML63SC36MRG
ML63SC45MRG
ML63SC50MRG
Marking
7EXX
7AXX
7HXX
7SXX
73XX
Description
XX = Production Date
Code
e.g. B2
SOT89:
ML63SA and ML63SB Series
Designator
1,2
3,4
5,6
Description
Year Code
e.g. 05 = Year 2005
Week Code
e.g. 30 = Week 30
Output Voltage
e.g. 30 = 3.0V
P2/11
Rev. D, August 2011
ML63S
 ML63SA
 Pin Configuration
Package Pin Number
SOT23-3
SOT89-3
TO-92
1
1
1
3
2
2
2
3
3
Pin Name
Function
VSS
VOUT
LX
Ground
Output Voltage monitor, Internal IC Power Supply
Switch
 Block Diagram
 Typical Applications
P3/11
Rev. D, August 2011
ML63S
 ML63SB
 Pin Configuration
Package Pin Number
SOT23-3
SOT89-3
TO-92
1
1
1
3
2
2
2
3
3
Pin Name
Function
VSS
VOUT
EXT
Ground
Output Voltage monitor, Internal IC Power Supply
External Switch Transistor Drive
 Block Diagram
 Typical Applications
P4/11
Rev. D, August 2011
ML63S
 ML63SC
 Pin Configuration
Package Pin Number
SOT23-5
SOT89-5
4
5
2
2
5
4
1
3
3
1
Pin Name
Function
VSS
VOUT
Lx
CE
NC
Ground
Output Voltage monitor, Internal IC Power Supply
Switch
Chip Enable
NC
 Block Diagram
 Typical Applications
P5/11
Rev. D, August 2011
ML63S
 ML63SD
 Pin Configuration
Package Pin Number
SOT23-5
SOT89-5
4
5
2
2
5
4
1
3
3
1
Pin Name
Function
VSS
VOUT
EXT
CE
NC
Ground
Output Voltage monitor, Internal IC Power Supply
External Switch Transistor Drive
Chip Enable
NC
 Block Diagram
 Typical Applications
P6/11
Rev. D, August 2011
ML63S
 ML63SE
 Pin Configuration
Package Pin Number
SOT23-5
SOT89-5
4
5
2
2
5
4
1
3
3
1
Pin Name
Function
VSS
VDD
Lx
VOUT
NC
Ground
Power Supply
Switch
Output Voltage Monitor
NC
 Block Diagram
 Typical Applications
P7/11
Rev. D, August 2011
ML63S
 ML63SF
 Pin Configuration
Package Pin Number
SOT23-5
SOT89-5
4
5
2
2
5
4
1
3
3
1
Pin Name
Function
VSS
VOUT
Lx
FB
NC
Ground
Power Supply
Switch
Feedback
NC
 Block Diagram
 Typical Applications
P8/11
Rev. D, August 2011
ML63S
 Absolute Maximum Ratings
Parameter
Input Voltage
VDD Input Voltage
Lx Pin Voltage
EXT Pin Voltage
CE Pin Voltage
Lx Pin Current
EXT Pin Current
SOT-89
Continuous
TO-92
Total Power
Dissipation
SOT-23
Operating Ambient
Temperature
Storage Temperature
Symbol
VIN
VDD
VLX
VEXT
VCE
ILX
IEXT
Ratings
6.5
6.5
6.5
-0.3 ~ VOUT + 0.3
-0.3 ~ VOUT + 0.3
600
+ 30
500
Units
V
V
V
V
V
mA
mA
Pd
300
mW
150
Topr
Tstg
-25 ~ +85
o
C
-40 ~ +125
o
C
 Electrical Characteristics
VIN = VOUT * 0.6, VSS = 0V, IOUT = 10mA, Ta = 25 oC, unless otherwise specified.
Parameter
Symbol
Output Voltage
VOUT
Input Voltage
Startup Voltage
Hold-on Voltage
VIN
VSTART
VHOLD
Supply Current 1
IDD1
Supply Current 2
Lx Switching Current
Lx Leakage Current
CE “High” Voltage
CE “Low” Voltage
CE “High” Current
CE “Low” Current
Oscillator Frequency
Duty Cycle
Efficiency
IDD2
ILX
Conditions
IOUT = 1mA, VIN: 02V
IOUT = 1mA, VIN: 20V
No external component,
VIN = VOUT * 0.95
VIN = VIN + 0.5V
VLX = 0.4V, VIN = VOUT * 0.95
VIN =VLX=6.0V
VIN = VOUT * 0.95
VIN = VOUT * 0.95
VOUT = 6.0V, VCE = 6.0V
VOUT = 6.0V, VCE = 0.0V
ILXLEAK
VCEH
VCEL
ICEH
ICEL
FOSC
MAXDTY
EFF
Min Typ Max Units
Vout *
Vout *
Vout
V
0.975
1.025
6.5
V
0.8
0.9
V
0.8
V
35
uA
7
150
uA
mA
uA
V
V
uA
uA
KHz
%
%
0.5
0.9
0.3
0.5
0.5
-0.5
-0.5
100
78
85
Note : 1. Schottky diode: 1N5817 or 1N5819 (forward voltage drop : 0.2V)
2. Inductor : 47uH (ESR < 0.1)
3. Capacitor : Tantalum type, 47 uF
P9/11
Rev. D, August 2011
ML63S
 Electrical Characteristics
VIN = 1.6V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
ML63SA27 VOUT = 2.7V
Parameter
Output Voltage
Input Voltage
Startup Voltage
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
Symbol
VOUT
VIN
VSTART
VHOLD
IDD1
IDD2
ILX
ILXLEAK
FOSC
MAXDTY
EFF
Conditions
Min
2.633
IOUT = 1mA
IOUT = 1mA
VIN = 2.57V
VIN = 2.75V
VLX=0.4V, VIN =2.57V
VIN =6.0V, VLX =6.0V
Typ
2.700
0.8
Max
2.767
6.5
0.9
0.8
35
7
100
0.5
100
78
85
Units
V
V
V
V
uA
uA
mA
uA
KHz
%
%
VIN = 1.8V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
ML63SA30 VOUT = 3.0V
Parameter
Output Voltage
Input Voltage
Startup Voltage
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
Symbol
VOUT
VIN
VSTART
VHOLD
IDD1
IDD2
ILX
ILXLEAK
FOSC
MAXDTY
EFF
Conditions
Min
2.925
IOUT = 1mA
IOUT = 1mA
VIN = 2.85V
VIN = 3.05V
VLX=0.4V, VIN =2.85V
VIN =6.0V, VLX =6.0V
Typ
3.000
0.8
Max
3.075
6.5
0.9
0.8
35
7
150
0.5
100
78
85
Units
V
V
V
V
uA
uA
mA
uA
KHz
%
%
VIN = 2.0V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
ML63SA33 VOUT = 3.3V
Parameter
Output Voltage
Input Voltage
Startup Voltage
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
Symbol
VOUT
VIN
VSTART
VHOLD
IDD1
IDD2
ILX
ILXLEAK
FOSC
MAXDTY
EFF
Conditions
Min
3.218
IOUT = 1mA
IOUT = 1mA
VIN = 3.135V
VIN = 3.35V
VLX=0.4V, VIN =3.135V
VIN =6.0V, VLX =6.0V
Typ
3.300
0.8
Max
3.383
6.5
0.9
0.8
35
7
180
0.5
100
78
85
Units
V
V
V
V
uA
uA
mA
uA
KHz
%
%
VIN = 3.0V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
ML63SA50 VOUT = 5.0V
Parameter
Output Voltage
Input Voltage
Startup Voltage
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
Symbol
VOUT
VIN
VSTART
VHOLD
IDD1
IDD2
ILX
ILXLEAK
FOSC
MAXDTY
EFF
Conditions
IOUT = 1mA
IOUT = 1mA
VIN = 4.75V
VIN = 5.05V
VLX=0.4V, VIN = 4.75V
VIN =6.0V, VLX =6.0V
Min
4.875
Typ
5.000
0.8
60
7
210
0.5
100
78
85
P10/11
Max
5.125
6.5
0.9
0.8
Units
V
V
V
V
uA
uA
mA
uA
KHz
%
%
Rev. D, August 2011
ML63S
 Application Notes
1. It is recommended to use capacitor with a capacity of 10uF or more for good frequency characteristics, otherwise it will lead
to high output ripple. Tantalum type capacitor is recommended. As there may be the case where a spike-shaped high voltage
is generated by the inductor when Lx transistor is turned off, the operating voltage of capacitor should be at least three times
of the output set voltage so as to avoid over-voltage damage.
2. It is recommended to use inductor has sufficiently small d.c. resistance, large allowable current and hardly reaches magnetic
saturation. When the inductance of inductor is small, there may be the case that the inductor current exceeds the absolute
maximum ratings at the maximum load condition.
3. It is recommended to place external components as close as possible to the DC/DC converter so as to minimize the
interconnection parasitic between components and DC/DC converter, especially for the capacitor connected to V OUT pin. It
is recommended to place 0.1uF ceramic capacitor between VOUT pin and VSS pin.
4. It is recommended to provide sufficient grounding for VSS pin. This will help to stable the zero level within DC/DC
converter induced by the switching current level variation during operation. And the insufficient grounding may result in
unstable operation of DC/DC converter.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and
reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use.
P11/11
Rev. D, August 2011
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