ML65D33MR [ETC]
ML65 Series DC-DC Converter; ML65系列DC-DC转换器型号: | ML65D33MR |
厂家: | ETC |
描述: | ML65 Series DC-DC Converter |
文件: | 总10页 (文件大小:1472K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ML65
ML65 Series DC-DC Converter
ꢀ Application
ꢀ Features
ꢂ
Smallnumberofexternalcomponents:inductor,diodeand
capacitor.
Ultralowinputcurrent:Typical 6uA
OutputVoltageAccuracy:+/-2.5%
Lowrippleandnoise
Lowstartupvoltage:Max0.9V(with1mA input)
HighEfficiency: Typical80%
PackageAvailable:
ꢁ Power Source of Portable Products
ꢁ Palmtops
ꢁ Portable Cameras and Video Recorders
ꢁ Wireless mouse and keyboard
ꢂ
ꢂ
ꢂ
ꢂ
ꢂ
ꢂ
ꢀ Ordering Information
SOT-89(500mW),SOT-23(150mW)&TO-92
(300mW)
Designator
a
Description
Version
ꢀ General Description
Output Voltage
eg.
30=3.0V
33=3.3V
50=5.0V
The ML65 is a group of PWM Step-up DC/DC
converter IC with ultra-low supply current by
CMOS process.
b
c
Package Type
P = SOT-89
M = SOT-23
It consists of an oscillator, a PWM control circuit, a
Lx switch driver transistor, a reference voltage unit,
an error amplifier for voltage detection and an Lx
switch protection circuit. It is suitable for use with
battery-powered instruments with low noise and
ultra low supply current.
T = TO-92
Device Orientation
R = Embossed Tape
(Orientation of Device : Right)
L = Embossed Tape
(Orientation of Device : Left)
B = Bag (TO-92)
d
ML65 Package
Version Designator
M
Switching CE
Transistor Function
Package
VDD Pin
FB Pin
Features
SOT23-3
SOT89-3
TO-92
Build-in
No
ML65A
ML65B
No
No
Lx
P
T
Transistor
M
P
SOT23-3
SOT89-3
TO-92
External
No
No
No
Ext
Transistor
T
M
P
SOT23-5
SOT89-5
SOT23-5
SOT89-5
SOT23-5
SOT89-5
SOT23-5
SOT89-5
Build-in
Yes
ML65C
ML65D
ML65E
ML65F
No
No
No
No
No
Yes
Lx+CE
Ext+CE
Lx+VDD
FB
Transistor
M
P
External
Yes
Transistor
M
P
Build-in
No
Yes
Yes
Transistor
M
P
Build-in
No
Transistor
P1/10
Rev. B, July 2005
ML65
ꢀ ML65A
ꢁ Pin Configuration
Package Pin Number
Pin Name
Function
SOT23-3
SOT89-3
TO-92
1
3
2
1
2
3
1
2
3
VSS
VOUT
LX
Ground
Output Voltage monitor, Internal IC Power Supply
Switch
ꢁ Block Diagram
ꢁ Typical Applications
P2/10
Rev. B, July 2005
ML65
ꢀ ML65B
ꢁ Pin Configuration
Package Pin Number
Pin Name
Function
SOT23-3
SOT89-3
TO-92
1
3
2
1
2
3
1
2
3
VSS
VOUT
EXT
Ground
Output Voltage monitor, Internal IC Power Supply
External Switch Transistor Drive
ꢁ Block Diagram
ꢁ Typical Applications
P3/10
Rev. B, July 2005
ML65
ꢀ ML65C
ꢁ Pin Configuration
Package Pin Number
Pin Name
Function
SOT23-5
SOT89-5
4
2
5
1
3
5
2
4
3
1
VSS
VOUT
Lx
Ground
Output Voltage monitor, Internal IC Power Supply
Switch
Chip Enable
NC
CE
NC
ꢁ Block Diagram
ꢁ Typical Applications
P4/10
Rev. B, July 2005
ML65
ꢀ ML65D
ꢁ Pin Configuration
Package Pin Number
Pin Name
Function
SOT23-5
SOT89-5
4
2
5
1
3
5
2
4
3
1
VSS
VOUT
EXT
CE
Ground
Output Voltage monitor, Internal IC Power Supply
External Switch Transistor Drive
Chip Enable
NC
NC
ꢁ Block Diagram
ꢁ Typical Applications
P5/10
Rev. B, July 2005
ML65
ꢀ ML65E
ꢁ Pin Configuration
Package Pin Number
Pin Name
Function
SOT23-5
SOT89-5
4
2
5
1
3
5
2
4
3
1
VSS
VDD
Lx
Ground
Power Supply
Switch
VOUT
NC
Output Voltage Monitor
NC
ꢁ Block Diagram
ꢁ Typical Applications
P6/10
Rev. B, July 2005
ML65
ꢀ ML65F
ꢁ Pin Configuration
Package Pin Number
Pin Name
Function
SOT23-5
SOT89-5
4
2
5
1
3
5
2
4
3
1
VSS
VOUT
Lx
Ground
Power Supply
Switch
FB
NC
Feedback
NC
ꢁ Block Diagram
ꢁ Typical Applications
P7/10
Rev. B, July 2005
ML65
ꢀ Absolute Maximum Ratings
Parameter
Input Voltage
Symbol
VIN
VDD
Ratings
10
10
Units
V
VDD Input Voltage
Lx Pin Voltage
EXT Pin Voltage
CE Pin Voltage
Lx Pin Current
EXT Pin Current
V
VLX
10
-0.3 ~ VOUT + 0.3
-0.3 ~ VOUT + 0.3
600
V
VEXT
VCE
ILX
V
V
mA
mA
IEXT
+ 30
SOT-89
500
300
150
Continuous
Total Power
Dissipation
TO-92
Pd
mW
SOT-23
Operating Ambient
Temperature
Storage Temperature
Topr
Tstg
-25 ~ +85
oC
oC
-40 ~ +125
ꢀ Electrical Characteristics
VIN = VOUT * 0.6, VSS = 0V, IOUT = 10mA, Ta = 25 oC, unless otherwise specified.
Parameter
Symbol
Conditions
Min Typ Max Units
Vout *
0.975
Vout *
1.025
8
Output Voltage
VOUT
Vout
0.8
V
Input Voltage
Startup Voltage
Hold-on Voltage
VIN
V
V
V
VSTART
VHOLD
0.9
IOUT = 1mA, VIN: 0→2V
IOUT = 1mA, VIN: 2→0V
No external component,
VIN = VOUT * 0.95
0.7
Supply Current 1
IDD1
30~70
uA
Supply Current 2
Lx Switching Current
Lx Leakage Current
IDD2
ILX
VIN = VIN + 0.5V
VLX = 0.4V, VIN = VOUT * 0.95
VIN =VLX=6.0V
11~26
250
uA
mA
uA
ILXLEAK
0.5
No external component,
VIN = VOUT * 0.95,
VEXT = VOUT – 0.4V
No external component,
VIN = VOUT * 0.95,
EXT “High” On Current
EXT “Low” On Current
IEXTH
-5.5
13
mA
mA
IEXTL
VEXT = 0.4V
VIN = VOUT * 0.95
CE “High” Voltage
CE “Low” Voltage
CE “High” Current
CE “Low” Current
Oscillator Frequency
Duty Cycle
VCEH
VCEL
ICEH
0.7
V
V
VIN = VOUT * 0.95
VOUT = 6.0V, VCE = 6.0V
VOUT = 6.0V, VCE = 0.0V
0.2
0.25
-0.25
uA
uA
KHz
%
ICEL
FOSC
100
87
MAXDTY
EFF
TSS
80
5
92
25
Efficiency
Slow-Start Time
85
15
%
ms
Note : 1. Schokkty diode: 1N5817 or 1N5819 (forward voltage drop : 0.2V)
2. Inductor : 47uH (ESR < 0.5Ω)
3. Capacitor : Tantalum type, 47 uF
P8/10
Rev. B, July 2005
ML65
ꢀ Electrical Characteristics
ML65A30
Parameter
VOUT = 3.0V VIN = 1.8V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
Symbol
VOUT
VIN
Conditions
Min Typ Max Units
Output Voltage
Input Voltage
2.925 3.000 3.075
8
V
V
Startup Voltage
VSTART
VHOLD
IDD1
IOUT = 1mA
IOUT = 1mA
VIN = 2.85V
0.8
0.9
V
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
0.7
V
30
11
uA
uA
mA
uA
KHz
%
IDD2
VIN = 3.05V
ILX
VLX=0.4V, VIN=2.85V
VIN=6.0V, VLX=6.0V
250
ILXLEAK
FOSC
0.5
150
92
100
87
MAXDTY
EFF
80
5
85
%
Slow –Start Time
TSS
15
25
ms
ML65A33
Parameter
VOUT = 3.3V VIN = 2.0V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
Symbol
VOUT
VIN
Conditions
Min Typ Max Units
Output Voltage
Input Voltage
3.218 3.300 3.383
8
V
V
Startup Voltage
VSTART
VHOLD
IDD1
IOUT = 1mA
IOUT = 1mA
VIN = 3.135V
0.8
0.9
V
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
0.7
V
33
12
uA
uA
mA
uA
KHz
%
IDD2
VIN = 3.35V
ILX
VLX=0.4V, VIN=3.135V
VIN=6.0V, VLX=6.0V
260
ILXLEAK
FOSC
0.5
150
92
100
87
MAXDTY
EFF
80
5
85
%
Slow –Start Time
TSS
15
25
ms
ML65A50
Parameter
VOUT = 5.0V VIN = 3.0V, IOUT = 10mA, Ta = 25 oC, unless otherwise provided.
Symbol
VOUT
VIN
Conditions
Min Typ Max Units
Output Voltage
Input Voltage
4.875 5.000 5.125
8
V
V
Startup Voltage
VSTART
VHOLD
IDD1
IOUT = 1mA
IOUT = 1mA
VIN = 4.75V
0.8
0.9
V
Hold-on Voltage
Supply Current 1
Supply Current 2
Lx Switching Current
Lx Leakage Current
Oscillator Frequency
Oscillator Duty Cycle
Efficiency
0.7
V
70
26
uA
uA
mA
uA
KHz
%
IDD2
VIN = 5.05V
ILX
VLX=0.4V, VIN= 4.75V
VIN=6.0V, VLX=6.0V
290
ILXLEAK
FOSC
0.5
150
92
100
87
MAXDTY
EFF
80
5
85
%
Slow –Start Time
TSS
15
25
ms
P9/10
Rev. B, July 2005
ML65
ꢀ 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 VOUT 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.
P10/10
Rev. B, July 2005
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