TK77350AMEG0L [AKM]
Fixed Positive LDO Regulator, 5V, BIMOS, PDSO8, LEAD FREE, HSOP-8;
| 型号： | TK77350AMEG0L |
| 厂家： | 
ASAHI KASEI MICROSYSTEMS |
| 描述： | Fixed Positive LDO Regulator, 5V, BIMOS, PDSO8, LEAD FREE, HSOP-8 光电二极管 |
| 文件： | 总20页 (文件大小：549K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
APPLICATION MANUAL
BiMOS LDO Regulator
TK773xxAME
CONTENTS
1 . DESCRIPTION
2 . FEATURES
2
2
3 . PIN CONFIGURATION
4 . PACKAGE OUTLINE
5 . BLOCK DIAGRAM
2
2
2
6 . ORDERING IMFORMATION
7 . ABSOLUTE MAXIMUM RATINGS
8 . ELECTRICAL CHARACTERISTICS
9 . TEST CIRCUIT
3
3
4
5
10 . TYPICAL CHARACTERISTICS
11 . PIN DESCRIPTION
12 . APPLICATIONS INFORMATION
13 . NOTES
6
16
17
20
20
14 . OFFICES
GC3-R002
Page 1
TK773xxAME
BiMOS LDO Regulator
TK773xxAME
1. DESCRIPTION
4. PACKAGE OUTLINE
The TK773xxAME is a BiMOS LDO regulator. The
package is HSOP-8. The IC can supply 500mA output
current. The control part is optimized by using the bipolar
element. The IC does not oscillate if no external input and
output capacitors are used. The soft start function that the
output voltage gradually turn on by connecting a noise
pass capacitor is built-in. The soft start function can
adjust the inrush current to almost zero.
■ HSOP-8
2. FEATURES
■ Soft start function (can adjust the inrush current to
almost zero)
■ Not oscillate without input, output and noise pass
capacitor
■ Output current 500mA
■ Package is HSOP-8
■ Wide operation voltage (VOP = 2.5V ~ 14.5V)
■ On/Off control (High-On)
3. PIN CONFIGURATION
(Top View)
1
2
3
4
8
7
6
5
NC
VIn
NC
VOut
NC
Np
5. BLOCK DIAGRAM
NC
VIn
1
2
3
4
8
7
6
5
NC
VOut
NC
Np
GND
VCont
VRef
On/Off
Control
GND
VCont
Thermal &
Over Current
Protection
500kW
GC3-R002
Page 2
TK773xxAME
6. ORDERING IMFORMATION
T K 7 7 3
A M E G 0 L
Voltage Code
Tape / Reel Code
(Refer to the following table)
L : Left Type
Version
A
Environment Code
G0 : Lead Free
Package Code
ME : HSOP-8
Part Number
TK77312AME
TK77318AME
TK77325AME
TK77330AME
TK77333AME
TK77335AME
TK77350AME
Marking Code
AB12
Output Voltage
Voltage Code
1.2V
1.8V
2.5V
3.0V
3.3V
3.5V
5.0V
12
18
25
30
33
35
50
AB18
AB25
AB30
AB33
AB35
AB50
If you need a voltage other than the value listed in the above table, please contact ASAHI KASEI TOKO POWER
DEVICES.
7. ABSOLUTE MAXIMUM RATINGS
Ta=25°C
Parameter
Absolute Maximum Ratings
Input Voltage
Symbol
Rating
Units
Conditions
VIn,MAX
VOut,MAX
VCont,MAX
VNp,MAX
Tstg
-0.3 ~ 16.0
-0.3 ~ VIn+0.3
-0.3 ~ 16.0
-0.3 ~ 2.0
V
V
Output pin Voltage
Control pin Voltage
Np pin Voltage
V
V
Storage Temperature Range
-55 ~ 150
°C
Internal Limited Tj=140°C *,
when mounted on a PCB
Power Dissipation
PD
2000
mW
Operating Condition
Operational Temperature
Range
TOP
-40 ~ 85
°C
Operational Voltage Range
Short Circuit Current
VOP
2.5 ~ 14.5
800
V
IShort
mA
Over Current Protection
* PD must be decreased at the rate of 17.4mW/°C for operation above 25°C.
The maximum ratings are the absolute limitation values with the possibility of the IC being damaged.
If the operation exceeds this standard quality can not be guaranteed.
GC3-R002
Page 3
TK773xxAME
8. ELECTRICAL CHARACTERISTICS
The parameters with min. or max. values will be guaranteed at Ta=Tj=25°C with test when manufacturing or SQC
(Statistical Quality Control) methods. The operation between -40 ~ 85°C is guaranteed by design.
VIn=VOut,TYP+1V(*1), VCont=1.8V, Ta=25°C
Value
Parameter
Symbol
IQ
Units
Conditions
MIN
-
TYP
150
MAX
225
Quiescent Current
Output Voltage
µA
V
IOut=0mA
VOut
Refer to TABLE 1
IOut=5mA
Line Regulation
Load Regulation
Dropout Voltage *2
GND Pin Current
LinReg
LoaReg
VDrop
-
0.8
5
mV
mV
mV
µA
mA
µA
IOut=5mA, DVIn=5V
IOut=5mA~500mA
IOut=500mA
Refer to TABLE 1
-
-
500
200
800
0.01
750
300
-
IGND
IOut=500mA
Maximum Load Current *3 IOut,MAX
500
-
VOut=VOut,TYP×0.9
VCont=0V
Standby Current
Control Terminal
Control Current
IStandby
0.1
ICont
-
1.8
-
4.0
6.0
-
µA
V
VCont=1.8V, VOut On
VOut On state
-
-
Control Voltage
Np Terminal
Np pin Voltage
VCont
0.3
V
VOut Off state
-
-
0.40
0.60
-
-
V
V
VOut ≤ 3.9V
4.0V ≤ VOut
VNp
*1: For VOut £ 1.5V , VIn=2.5V.
*2: For VOut £ 2.2V , no regulations.
*3: The maximum output current is limited by power dissipation.
The maximum load current is the current where the output voltage decreases to 90% by increasing the output current at
Tj=25°C, compared to the output voltage specified at VIn=VOut,TYP+1V
TABLE 1. Preferred Product
Load Regulation
TYP
Output Voltage
TYP
Part Number
MIN
V
MAX
V
MAX
mV
63
V
mV
25
30
36
40
42
43
42
TK77312AME
TK77318AME
TK77325AME
TK77330AME
TK77333AME
TK77335AME
TK77350AME
1.170
1.764
2.450
2.940
3.234
3.430
4.900
1.200
1.800
2.500
3.000
3.300
3.500
5.000
1.230
1.836
2.550
3.060
3.366
3.570
5.100
75
90
100
105
108
105
GC3-R002
Page 4
TK773xxAME
9. TEST CIRCUIT
1
2
3
4
8
7
6
5
NC
VIn
NC
VOut
NC
VIn
CIn
COut
IOut
V VOut
GND
VCont
Np
VCont
CNp
V VNp
Notice.
The limit value of electrical characteristics is applied when CIn=1.0mF(Ceramic), COut=1.0mF(Ceramic),
CNp=100pF(Ceramic).
But CIn, COut, and CNp can be used both the ceramic and the tantalum capacitor.
The Np terminal is high impedance. It is not connectable except a CNp.
GC3-R002
Page 5
TK773xxAME
10. TYPICAL CHARACTERISTICS
10-1. DC CHARACTERISTICS
Test Circuit
VIn
=VOut,TYP+1V
VIn
VOut
CIn
COut
IOut
1mF
1mF
5mA
GND
VCont
Np
VCont
2.0V
CNp
100pF
VOut vs VIn (TK77333AME)
Line Regulation (TK77333AME)
LINE REG
50
40
6.0
5.0
4.0
3.0
2.0
1.0
0.0
30
20
10
0
-10
-20
-30
-40
-50
0
2
4
6
8
10 12 14 16
0
2
4
6
8
10 12 14 16
VVInin[(VV) ]
VIn [ V ]
Vin[V]
IQ vs VIn (TK77333AME)
Load Regulation (TK77333AME)
10
0
500
450
400
350
300
250
200
150
100
50
-10
-20
-30
-40
-50
-60
0
0
2
4
6
8
10 12 14 16
0
100 200 300 400 500 600
Iout(mA)
Vin(V)
I
[ mA ]
VIn [ V ]
Out
GC3-R002
Page 6
TK773xxAME
IGND vs IOut (TK77333AME)
VDrop vs IOut (TK77333AME)
0
-100
-200
-300
-400
-500
-600
-700
-800
500
450
400
350
300
250
200
150
100
50
0
0
100 200 300 400 500 600
Vin(V)
0
100 200 300 400 500 600
Iout(mA)
IOut [ mA ]
IOut [ mA ]
IOut,MAX (TK77333AME)
VOut vs VCont (TK77333AME)
6.0
5.0
4.0
3.0
2.0
1.0
0.0
6.0
5.0
4.0
3.0
2.0
Vout-Off
Vout-On
1.0
0.0
0
200
400
600
800
1000
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Iout(mA)
Vin(V)
I
[ mA ]
VCont [ V ]
Out
IStandby vs VIn (TK77333AME)
DVOut vs Ta (TK77333AME)
LINE REG
100u
10u
1u
50
40
30
20
100n
10n
1n
10
0
-10
-20
-30
-40
-50
100p
10p
1p
0
2
4
6
8
10 12 14 16
-40 -20
0
20 40 60 80 100
Vin(V)
Vrev(V)
Ta [ °C ]
VIn [ V ]
GC3-R002
Page 7
TK773xxAME
IQ vs Ta (TK77333AME)
LoaReg vs Ta (TK77333AME)
LINE REG
LINE REG
200
190
180
170
160
150
140
130
120
110
100
10
0
Iout=5~100mA
Iout=5~300mA
-10
-20
-30
-40
-50
-60
-70
-80
-90
Iout=5~500mA
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
Vin(V)
Vin(V)
Ta [ °C ]
Ta [ °C ]
IGND vs Ta (TK77333AME)
VDrop vs Ta (TK77333AME)
LINE REG
LINE REG
250
200
150
100
0
-100
-200
-300
-400
-500
-600
-700
-800
Iout
100mA
300mA
500mA
Iout
500mA
300mA
100mA
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
Vin(V)
Vin(V)
Ta [ °C ]
Ta [ °C ]
IOut,MAX vs Ta (TK77333AME)
On/Off threshold voltage vs Ta (TK77333AME)
LINE REG
LINE REG
1000
900
800
700
600
500
400
300
200
100
0
2.0
1.8
Vout-On
1.6
1.4
1.2
1.0
Vout-Off
0.8
0.6
0.4
0.2
0.0
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
Vin(V)
Vin(V)
Ta [ °C ]
Ta [ °C ]
GC3-R002
Page 8
TK773xxAME
10-2. AC CHARACTERISTICS
On/Off Transient
Test circuit
VIn
=VOut,TYP+1V
VIn
VOut
CIn
1mF
IOut
5mA
COut
GND
VCont
Np
VCont
0-2V
CNp
0.1Hz
CNp=none, COut=1mF (TK77333AME)
CNp=1000pF, COut=1mF (TK77333AME)
2V/div
VCont
2V/div
VCont
IIn
0.2A/div
IIn
0.2A/div
VOut
2V/div
VOut
2V/div
400µsec/div
400µsec/div
CNp=0.01mF, COut=1mF (TK77333AME)
CNp=0.1mF, COut=1mF (TK77333AME)
2V/div
VCont
2V/div
VCont
IIn
0.2A/div
IIn
0.2A/div
VOut
2V/div
VOut
2V/div
10msec/div
1msec/div
GC3-R002
Page 9
TK773xxAME
Inrush vs CNp (TK77333AME)
On-Time vs CNp (TK77333AME)
1000
1000
(Cout)
10 F
m
(Cout)
10 F
m
100
10
100
10
1
1 F
m
0.1 F
m
1 F
m
1
0.1
0.01
0.1 F
m
100p
1000p
0.01u
0.1u
1u
100p
1000p
0.01u
0.1u
1u
CNp [ F ]
CNp [ F ]
Softstart Area (TK77333AME)
10u
~1mA
1mA~30mA
1u
0.1u
0.01u
1000p
100p
mA~
10u
30
0.01u
0.1u
1u
100u
COut [ F ]
GC3-R002
Page 10
TK773xxAME
Line Transient
Test circuit
VIn
=VOut,TYP+1Vꢀ ꢀꢀV
VIn
VOut
CIn
COut
IOut
1mF
1mF
100mA
GND
VCont
Np
VCont
2.0V
CNp
0.1mF
IOut=0, 100m, 300m, 500mA (TK77333AME)
CNp=none, 1000p, 0.01m, 0.1mF (TK77333AME)
4.8V
4.8V
VIn
VIn
4.3V
4.3V
100mV/div
DVOut
100mV/div
DVOut
IOut:0→100m→300m→500mA
100µsec/div
CNp:none→1000p→0.01µ→0.1µF
100µsec/div
CNp=1m, 2.2m, 4.7m, 10mF (TK77333AME)
4.8V
VIn
4.3V
100mV/div
DVOut
COut:1µ→2.2µ→4.7µ→10µF
100µsec/div
GC3-R002
Page 11
TK773xxAME
Load Transient
Test circuit
VIn
=VOut,TYP+1V
IOut
VIn
VOut
CIn
1mF
COut
1mF
GND
VCont
Np
VCont
2V
CNp
0.1mF
0mA®xxx mA (CIn=COut=CNp=none)
0mA®xxx mA (CIn=COut=1µF, CNp=0.1µF)
(TK77333AME)
(TK77333AME)
xxx mA
xxx mA
IOut
IOut
0mA
0mA
VOut
1V/div
VOut
1V/div
0→xxx mA
0→xxx mA
xxx:100m→300m→500mA
xxx:100m→300m→500mA
10µsec/div
10µsec/div
xxx mA®0mA (CIn=COut=CNp=none)
xxx mA®0mA (CIn=COut=1µF, CNp=0.1µF)
(TK77333AME)
(TK77333AME)
xxx mA
xxx mA
IOut
IOut
0mA
0mA
VOut
1V/div
VOut
1V/div
xxx→0mA
xxx→0mA
xxx:100m→300m→500mA
xxx:100m→300m→500mA
100µsec/div
10msec/div
GC3-R002
Page 12
TK773xxAME
10mA®xxx mA (CIn=COut=1µF, CNp=0.1µF)
0mA®500mA (CIn=1µF, CNp=0.1µF)
(TK77333AME)
(TK77333AME)
xxx mA
500mA
IOut
IOut
10mA
0mA
COut:1µ→2.2µ→4.7µ→10µF
1V/div
1V/div
DVOut
DVOut
10mA→xxx mA
xxx:100m→300m→500mA
10µsec/div
40µsec/div
GC3-R002
Page 13
TK773xxAME
Ripple Rejection
Test circuit
VIn
=VOut,TYP+1.5V
IOut
VIn
VOut
IOut
10mA
COut
1mF
500mVp-p
GND
VCont
Np
VCont
2.0V
CNp
0.1mF
R.R. vs Frequency (COut=CNp=none)
R.R. vs Frequency (COut=1µF, CNp=0.1µF)
(TK77333AME)
(TK77333AME)
0
-20
0
-20
-40
-60
-80
-40
-60
-80
-100
-100
10
10
100
1k
10k
100k
1M
100
1k
10k
100k
1M
Frequency [ Hz ]
Frequency [ Hz ]
R.R. vs Frequency (COut=0.1µ ~ 10µF)
R.R. vs IOut (TK77333AME)
(TK77333AME)
Cout=0.1u, 1u, 2.2u, 4.7u, 10uF
Cout=0.1uF
0
-20
0
-20
-40
-40
-60
-60
Cout=10uF
-80
-80
-100
-100
10
100
1k
10k
100k
1M
0
100
200
300
400
500
IOut [ mA ]
Frequency [ Hz ]
GC3-R002
Page 14
TK773xxAME
Output Noise
Test circuit
VIn
=VOut,TYP+1V
VIn
VOut
CIn
1mF
COut
1mF
IOut
10mA
V
VNoise
～
GND
VCont
Np
VCont
2V
CNp
0.1mF
Output Noise vs IOut (TK77333AME)
Output Noise vs CNp (TK77333AME)
300
250
200
150
100
50
500
450
400
350
300
250
Cap. Less
Cin, Cout : none
200
150
100
50
Cin=Cout=1 F
m
Cin=Cout=1 F, Cnp=0.1 F
m
m
0
0
0
100
200
300
1p
10p
100p 1000p 0.01u
0.1u
Iout [ mA ]
Cnp [ F ]
GC3-R002
Page 15
TK773xxAME
11. PIN DESCRIPTION
Pin Number Symbol
Internal Equivalent Circuit
Description
No Connection
Input Terminal
GND Terminal
Output Terminal
1
2
3
NC
VIn
GND
VIn
VOut
Np
4
VOut
Noise Bypass Terminal
VIn
Np
VOut
Connect a bypass capacitor between GND.
5
6
Np
No Connection
NC
On/Off Control Terminal
ESD
protection
VCont≥1.8V : VOut On state
VCont≤0.3V : VOut Off state
VCont
7
8
VCont
300kW
500kW
The pull-down resister (500kW) is built-in.
No Connection
NC
GC3-R002
Page 16
TK773xxAME
12. APPLICATIONS INFORMATION
12-1. Stability
12-3. On/Off Control
It is recommended to turn the regulator Off when the
circuit following the regulator is not operating. A design
with little electric power loss can be implemented. We
recommend the use of the On/Off control of the regulator
without using a high side switch to provide an output
from the regulator. A highly accurate output voltage with
low voltage drop is obtained.
General linear regulators require input capacitor and
output capacitor in order to maintain the regulator’s loop
stability. The TK773xxAME provides stable operation
without input and output capacitors.
AC characteristics depends on the sum of input capacitor
and output capacitor (refer to page 9～15). Because a
situation changes with each application, please confirm to
operation in your design. The other electrical
characteristics are equal to the electrical characteristics
when using input and output capacitors.
Because the control current is small, it is possible to
control it directly by CMOS logic.
Control Terminal Voltage ((VCont
)
On/Off State
VCont > 1.8V
On
VCont < 0.3V
Off
12-2. Soft-Start Function
A big inrush current is generated, with usual regulator,
when IC is turned on in order to charge the output
capacitor with the maximum capacity of the regulator.
This inrush current sometimes reaches double of the
recommended current.
In the circuit that multiple LDOs are connected, many
unfavorable facts occurs, such as damage the battery with
very big current at the start up, DC-DC converter operates
abnormally by the momentarily unstableness when LDO
is connected to it, etc.
When capacitor (CNp) is connected to the Np pin of the
TK773xxAME, together with the lower noise, voltage
rise up becomes gradual, and no sudden charge current
occurs. Suitable CNp value depends on the sum of the
output capacitor.
Parallel Connected On/Off Control
VOut
VIn
5.0V
TK77350A
3.3V
1.2V
TK77333A
R
TK77312A
On/Off
If small inrush current can be accepted, reduce the CNp
value. Increasing the CNp value makes the inrush current
small, reducing the CNp value makes it big.
The above figure is multiple regulators being controlled
by a single On/Off control signal. There is concern of
overheating, because the power loss of the low voltage
side IC (TK77312A) is large. The series resistor (R) is
put in the input line of the low output voltage regulator in
order to prevent over-dissipation. The voltage dropped
across the resistor reduces the large input-to-output
voltage across the regulator, reducing the power
dissipation in the device. When the thermal sensor works,
a decrease of the output voltage, oscillation, etc. may be
observed.
Also, the rise time can be adjusted by the CNp.
GC3-R002
Page 17
TK773xxAME
PD is easily calculated.
12-3. Operating Region and Power Dissipation
With the output terminal shorted-circuited to GND,
gradually increase the input voltage and measure the
input current.
Power dissipation capability is limited by the junction
temperature that triggers the built-in overheat protection
circuit. Therefore, power dissipation capability is
regarded as an internal limitation. The package itself does
not offer high heat dissipation because of its small size.
The package is, however, designed to release heat
effectively when mounted on the PCB. Therefore, the
heat-dissipation value will vary depending on the material,
copper pattern, etc. of the PCB on which the package is
mounted.
Slowly increase the input voltage to about 10V. The
initial input current value becomes the maximum
instantaneous output current value, but gradually lowers
as the chip temperature rises, and ultimately reaches a
state of thermal equilibrium (through natural air cooling).
PD is calculated using the input value for input current
and the input voltage value in the equilibrium state.
PD(mW) @ VIn (V) ´ IIn (mA)
When the regulator loss is large (high ambient
temperature, poor heat radiation), the overheat protection
circuit is activated. When this occurs, output current
cannot be obtained, and an output voltage drop is
observed. When the junction temperature reaches the set
value, the IC stops operating. However, after the IC has
stopped operation and the junction temperature lowers
sufficiently, the IC restarts operation immediately.
2
1 PD
5
DPD
3
4
How to determine the thermal resistance when
installed on a PCB
0
25
50
75
100
140
The chip junction temperature during operation is
expressed by
Tj = θ ja ´ PD + 25
Procedure (conducted at the time of installation on PCB)
The junction temperature of the TK736xxAME/U3 is
limited to approximately 140°C by the overheat
protection circuit. PD is the value observed when the
overheat protection circuit is activated. The following
example is based on an ambient temperature of 25°C.
1: Obtain PD ( VIn ´ IIn when output is short-circuited).
2: Plot PD on the 25°C line.
3: Draw a straight line between PD and the 140°C line.
4: Extend a straight-line perpendicular from the point of
the designed maximum operating temperature (for
example, 75°C).
5: Extend a line to the left from the intersection of the
derating curve and the line drawn in 4, and read the PD
value (this value is DPD).
140=qja×PD (Ｗ)+25
qja×PD =115
qja =115/ PD (°C/W)
6: DPD ¸ (VIn,MAX ´ VOut ) = IOut at 75°C
Glass epoxy substrate with double-layer wiring
(x=30mm, y=30mm, t=1.0mm,
copper pattern thickness: 35mm)
The maximum operating current at the maximum
temperature is as follows:
IOut @ {DPD ¸ (VIn,MAX - VOut )}
PD is 2000mW. If the temperature exceeds 25°C, be sure
to derate at -17.4mW/°C.
Try to achieve maximum heat dissipation in your design
in order to minimize the part’s temperature during
operation. Generally speaking, lower part temperatures
result in higher reliability in operation.
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TK773xxAME
12-4.Definition of term
Protections
Characteristics
¨ Over Current Sensor
¨ Output Voltage (VOut
)
The over current sensor protects the device when there is
excessive output current. It also protects the device if the
output is accidentally connected to ground.
The output voltage is specified with VIn=(VOutTYP+1V)
and IOut=5mA.
¨ Maximum Output Current (IOut, MAX
)
¨ Thermal Sensor
The rated output current is specified under the condition
where the output voltage drops to 90% of the value
specified with IOut=5mA. The input voltage is set to
VOutTYP+1V and the current is pulsed to minimize
temperature effect.
The thermal sensor protects the device in case the
junction temperature exceeds the safe value (Tj=140°C).
This temperature rise can be caused by external heat,
excessive power dissipation caused by large input to
output voltage drops, or excessive output current. The
regulator will shut off when the temperature exceeds the
safe value. As the junction temperatures decrease, the
regulator will begin to operate again. Under sustained
fault conditions, the regulator output will oscillate as the
device turns off then resets. Damage may occur to the
device under extreme fault.
¨ Dropout Voltage (VDrop
)
The dropout voltage is the difference between the input
voltage and the output voltage at which point the
regulator starts to fall out of regulation. Below this value,
the output voltage will fall as the input voltage is reduced.
It is dependent upon the output voltage, the load current,
and the junction temperature.
Please prevent the loss of the regulator when this
protection operates, by reducing the input voltage or
providing better heat efficiency.
¨ Line Regulation (LinReg)
Line regulation is the ability of the regulator to maintain a
constant output voltage as the input voltage changes. The
line regulation is specified as the input voltage is changed
¨ ESD
MM : 200pF 0W 200V or more
HBM : 100pF 1.5kW 2000V or more
from VIn=VOut,TYP+1V to VIn=6V. It is
measurement to minimize temperature effect.
a pulse
¨ Load Regulation (LoaReg)
Load regulation is the ability of the regulator to maintain
a constant output voltage as the load current changes. It is
a pulsed measurement to minimize temperature effects
with the input voltage set to VIn=VOut,TYP+1V.
¨ Ripple Rejection (RR)
Ripple rejection is the ability of the regulator to attenuate
the ripple content of the input voltage at the output. It is
specified with 500mVP-P, 1kHz super-imposed on the
input voltage, where VIn=VOut,TYP+1.5V. Ripple rejection
is the ratio of the ripple content of the output vs. input and
is expressed in dB.
¨Standby Current (IStandby
)
Standby current is the current which flows into the
regulator when the output is turned off by the control
function (VCont=0V).
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TK773xxAME
13. NOTES
14. OFFICES
Please be sure that you carefully discuss your planned
purchase with our office if you intend to use the products in
this application manual under conditions where particularly
extreme standards of reliability are required, or if you intend
to use products for applications other than those listed in this
application manual.
Power drive products for automobile, ship or aircraft
transport systems; steering and navigation systems,
emergency signal communications systems, and any
system other than those mentioned above which include
electronic sensors, measuring, or display devices, and
which could cause major damage to life, limb or property
if misused or failure to function.
If you need more information on this product and other
ASAHI KASEI TOKO POWER DEVICES products, please
contact us.
ASAHI KASEI TOKO POWER DEVICES CORPORATION
13-45, Senzui 3-chome, Asaka-shi, Saitama-ken
351-0024, Japan
TEL: +81-48-460-1870 (Marketing Department)
FAX: +81-48-460-1600
Medical devices for measuring blood pressure, pulse,
etc., treatment units such as coronary pacemakers and heat
treatment units, and devices such as artificial organs and
artificial limb systems which augment physiological
functions.
Electrical instruments, equipment or systems used in
disaster or crime prevention.
Semiconductors, by nature, may fail or malfunction in
spite of our devotion to improve product quality and
reliability. We urge you to take every possible precaution
against physical injuries, fire or other damages which may
cause failure of our semiconductor products by taking
appropriate measures, including a reasonable safety margin,
malfunction preventive practices and fire-proofing when
designing your products.
This application manual is effective from Jan. 2011. Note
that the contents are subject to change or discontinuation
without notice. When placing orders, please confirm
specifications and delivery condition in writing.
ASAHI KASEI TOKO POWER DEVICES is not
responsible for any problems nor for any infringement of
third party patents or any other intellectual property rights
that may arise from the use or method of use of the products
listed in this application manual. Moreover, this application
manual does not signify that ASAHI KASEI TOKO
POWER DEVICES agrees implicitly or explicitly to license
any patent rights or other intellectual property rights which it
holds.
None of the ozone depleting substances(ODS) under the
Montreal Protocol are used in our manufacturing process.
YOUR DISTRIBUTOR
GC3-R002
Page 20
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