TCK2292xG, TCK2297xG
TOSHIBA CMOS Linear Integrated Circuit Silicon Monolithic
TCK2292xG, TCK2297xG
2A, 25mΩ Load Switch IC with Slew Rate Control Driver
The TCK2292xG and TCK2297xG are load switch ICs for power management with slew rate control driver featuring wide input
voltage operation from 1.1 to 5.5 V. Switch ON resistance is only 25 mΩ
typical at 5.0 V, -0.5 A load condition and these feature a slew rate control
driver. TCK2292xG has output auto-discharge function. Output current
type is available on 2 A.
These devices are available in 0.4 mm pitch ultra small package
WCSP6E (0.8 mm x 1.2 mm, t: 0.55 mm) .Thus they are ideal for portable
applications that require high-density board assembly such as cellular
phone.
Feature
Wide input voltage operation: VIN = 1.1 to 5.5 V
WCSP6E
Low ON resistance:
Weight: 1 mg (typ.)
RON = 25 mΩ (typ.) at VIN = 5.0 V, IOUT = -0.5 A
RON = 31 mΩ (typ.) at VIN = 3.3 V, IOUT = -0.5 A
RON = 52 mΩ (typ.) at VIN = 1.8 V, IOUT = -0.5 A
RON = 104 mΩ (typ.) at VIN = 1.2 V, IOUT = -0.5 A
Low Quiescent Current: IQ = 0.1 μA (typ.) at IOUT = 0 mA(TCK22921G, TCK22971G)
Slew Rate Control circuit
Output auto-discharge (Option)
Reverse current blocking (VIN = 0 V)
Pull down connection between Control and GND(Option)
Ultra small package: WCSP6E (0.8mm x 1.2mm, t: 0.55mm)
Start of commercial production
2016-06
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TCK2292xG, TCK2297xG
Function Table
Function
Part number
Device
Marking
Rise time
@VIN=5V
Reverse current
blocking
(VIN = 0 V)
Output autodischarge
Control pin polarity
Control pin
connection
TCK22921G
4.5 μs
Built in
Built in
Active High
Pull down
1R
TCK22922G
666 μs
Built in
Built in
Active High
Pull down
2R
TCK22923G
1364 μs
Built in
Built in
Active High
Pull down
3R
TCK22925G
3380 μs
Built in
Built in
Active High
Pull down
4R
TCK22971G
4.5 μs
Built in
N/A
Active High
Pull down
5R
TCK22972G
666 μs
Built in
N/A
Active High
Pull down
6R
TCK22973G
1364 μs
Built in
N/A
Active High
Pull down
7R
TCK22974G
3380 μs
Built in
N/A
Active High
Pull down
8R
TCK22975G
666 μs
Built in
N/A
Active Low
Open
9R
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TCK2292xG, TCK2297xG
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Input voltage
VIN
-0.3 to 6.0
V
Control voltage
VCT
-0.3 to 6.0
V
Output voltage
VOUT
-0.3 to 6.0
V
2.0
A
Output current
IOUT
3.0 (Note1)
A
DC
Pulse
Power dissipation
PD
Operating temperature range
Topr
-40 to 85
°C
Tj
150
°C
Tstg
-55 to 150
°C
Junction temeperature
Storage temperature
800 (Note 2)
mW
Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant
change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating
conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings. Please design the
appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook (“Handling
Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report and estimated
failure rate, etc).
Note1: 100 μs pulse, 2% duty cycle
Note2: Rating at mounting on a board
Board material: Glass epoxy (FR4)
Board dimension: 40mm x 40mm (both sides of board), t=1.6mm
Metal pattern ratio: a surface approximately 50%, the reverse side approximately 50%
Through hole: diameter 0.5mm x 28
Operating conditions
Characteristics
Symbol
Condition
Min
Max
Unit
VIN
―
1.1
5.5
V
Output voltage
VOUT
―
―
VIN
V
Output current
IOUT
A
Input voltage
Control High-level input voltage
VIH
Control Low-level input voltage
VIL
1.4V < VIN
―
2.0
1.2V < VIN ≤ 5.5 V
1.0
―
1.1V ≤ VIN ≤1.2 V
0.9
―
―
―
0.4
Pin Assignment(Top view)
A
2
1
B
V
V
Top marking
Lot trace code
C
A1: VOUT
B1: VOUT
C1: GND
A2: VIN
B2: VIN
C2: Control
Device Marking
Index
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TCK2292xG, TCK2297xG
Block Diagram
Reverse Current
Blocking
VIN
VOUT
Q1
VIN
VOUT
Slew Rate
Control Driver
Control
Logic
Control
Q2
* Output
Discharge
Pull
Down
GND
*:option
Operation logic table (VIN = 1.1 V to 5.5 V)
TCK22921G
TCK22922G
TCK22923G
TCK22925G
TCK22971G
TCK22972G
TCK22973G
TCK22974G
TCK22975G
Control
“High”
Output Q1
ON
ON
OFF
Discharge Q2
OFF
―
―
Control
“Low”
Output Q1
OFF
OFF
ON
Discharge Q2
ON
―
―
*Reverse current blocking function works when VIN = 0 V.
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TCK2292xG, TCK2297xG
Electrical Characteristics
DC Characteristics (Ta = -40 to 85°C)
Ta = 25°C
Characteristics
Symbol
Quiescent current ( ON state)
IQ
Quiescent current ( ON state)
IQ
Ta = -40 to 85°C
Test Condition
IOUT = 0 mA
(Note 3)
IOUT = 0 mA
Unit
Min
Typ.
Max
Min
Max
VIN = 1.8 V
―
0.1
―
―
―
μA
VIN = 3.3 V
―
0.1
―
―
―
μA
VIN = 5.5 V
―
0.1
―
―
0.5
μA
VIN = 1.8 V
―
1.2
―
―
―
μA
VIN = 3.3 V
―
1.3
―
―
―
μA
VIN = 5.5 V
―
1.4
―
―
2.5
μA
Quiescent current ( OFF state)
IQ(OFF)
VIN = 5.5 V, VOUT = OPEN,
(Note 4)
―
0.07
―
―
0.4
μA
Switch leakage current( OFF state)
ISD(OFF)
VIN = 5.5 V, VOUT = GND, current
through from VIN to VOUT.
(Note 5)
―
0.02
―
―
2
μA
VOUT = 5.0 V,
VIN = 0 V
―
0.01
―
―
2
μA
VIN = 5.0 V
―
25
―
―
43
VIN = 3.3 V
―
31
―
―
53
VIN = 1.8 V
―
52
―
―
83
VIN = 1.2 V
―
104
―
―
185
VIN = 1.1 V
―
136
―
―
―
―
100
―
―
―
Reverse blocking current
On resistance
IRB
RON
Output discharge on resistance
RSD
IOUT = -0.5 A
― (Note 6)
mΩ
Ω
Note 3: Only applies to the TCK22921G and TCK22971G
Note 4: Except OFF-state switch current
Note 5: Only applies to the TCK22971G, TCK22972G, TCK22973G, TCK22974G and TCK22975G
Note 6: Only applies to the TCK22921G, TCK22922G, TCK22923G, and TCK22925G
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TCK2292xG, TCK2297xG
AC Characteristics (Ta = 25°C)
VIN = 5.0 V
Characteristics
Symbol
VOUT rise time
RL = 5 Ω, CL = 1.0 μF
tr
VOUT fall time
tON
Turn off delay
Min
Typ.
Max
TCK22921G
TCK22971G
―
4.5
―
TCK22922G
TCK22972G
TCK22975G
―
666
―
TCK22923G
TCK22973G
―
1364
―
TCK22925G
TCK22974G
―
3380
―
―
10
―
TCK22921G
TCK22971G
―
3
―
TCK22922G
TCK22972G
TCK22975G
tOFF
RL = 5 Ω, CL = 1.0 μF
―
380
―
TCK22923G
TCK22973G
―
750
―
TCK22925G
TCK22974G
―
2000
―
―
10
―
Unit
μs
RL = 5 Ω, CL = 1.0 μF
tf
Turn on delay
Test Condition (Figure 1, Figure 2)
μs
μs
RL = 5 Ω, CL = 1.0 μF
μs
AC Waveform
VIH
VCT
tr
VOUT
50%
tf
90%
10%
50%
VIL
90%
10%
90%
VOUT
10%
tOFF
tON
Figure 1
VOH
VOL
tr, tf, tON, tOFF Waveforms(Active High)
VIH
VCT
50%
50%
VIL
tr
VOUT
tf
90%
10%
90%
VOUT
10%
10%
Figure 2
90%
tON
tOFF
VOH
VOL
tr, tf, tON, tOFF Waveforms(Active Low)
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TCK2292xG, TCK2297xG
Application Note
1.
Application circuit example (top view)
The figure below shows the example of configuration
Control
GND
LOAD
VOUT
VIN
CIN
CL
RL
1)
Input capacitor
An input capacitor be sure to use CIN for the stable operation. And it is effective to reduce voltage overshoot or
undershoot due to sharp changes in output current and also for improved stability of the power supply. When used, place
CIN more than 1.0μF as close to VIN pin to improve stability of the power supply.
2)
Output capacitor
An output capacitor (COUT) is not necessary for the guaranteed operation. However, there is a possibility of overshoot
or undershoot caused by output load transient response, board layout and parasitic components of load switch IC. In this
case, an output capacitor with COUT more than 0.1μF is recommended.
3)
Control pin
The Control pin controls both the pass-through p-ch MOSFET and the discharge n-ch MOSFET (only for TCK2292xG),
operated by the control voltage. Each control pin is equipped with Schmitt trigger. Also, pull down resistance equivalent
to a few MΩ is connected between Control and GND, thus the load switch IC is in OFF state even when Control pin is
OPEN. (except TCK22975G). A control pin for TCK22975G is Active low and does not have a pull down resistor, please
use be sure to fix the potential of the Control pin to High or Low.
2. Reverse current blocking
This device has a built-in Reverse current blocking (SW OFF state) circuit to block reverse current from VOUT to VIN when
output p-ch MOSEFT turned off and input voltage is 0V.
3. Instructions and directions for use
This device has built-in several functions, but these do not assure for the suppression of uprising device operation. In use
of these products, please read through and understand dissipation idea for absolute maximum ratings from the above
mention or our ‘Semiconductor Reliability Handbook’. Then use these products under absolute maximum ratings in any
condition. Furthermore, Toshiba recommends inserting failsafe system into the design.
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TCK2292xG, TCK2297xG
4. Power Dissipation
Power dissipation is measured on the board condition shown below.
[The Board Condition]
Board material: Glass epoxy (FR4)
Board dimension: 40mm x 40mm (both sides of board),t=1.6mm
Metal pattern ratio: a surface approximately 50%, the reverse side approximately 50%
Through hole: diameter 0.5mm x 28
PD - Ta
Power Dissipation PD (mW)
1000
800
600
400
200
0
-40
0
40
80
Ambient Temperature Ta (℃)
120
Please allow sufficient margin when designing a board pattern to fit the expected power dissipation. Also take into
consideration the ambient temperature, input voltage, output current etc. and applying the appropriate derating for allowable
power dissipation during operation.
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TCK2292xG, TCK2297xG
TCK2292xG, TCK2297xG Representative Typical Characteristics
RON - VIN
RON - IOUT
IQ - VIN (Except TCK22921G, TCK22971G)
tOFF - Ta
tOFF Response(Except TCK22975G)
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TCK2292xG, TCK2297xG
TCK22921G, TCK22971G Representative Typical Characteristics
t r - Ta
tON - Ta
tON Response
TCK22922G, TCK22972G, TCK22975G Representative Typical Characteristics
t r - Ta
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tON - Ta
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TCK2292xG, TCK2297xG
tON Response (Except TCK22975G)
TCK22923G, TCK22973G Representative Typical Characteristics
t r - Ta
tON - Ta
tON Response
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TCK2292xG, TCK2297xG
TCK22925G, TCK22974G Representative Typical Characteristics
t r - Ta
tON - Ta
tON Response
Note: The above characteristics curves are presented for reference only and not guaranteed by production test,
unless otherwise noted.
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TCK2292xG, TCK2297xG
Package dimension
Unit: mm
Weight: 1 mg (typ.)
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TCK2292xG, TCK2297xG
Land pattern dimensions (for reference only)
Unit: mm
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TCK2292xG, TCK2297xG
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complying with safety standards and for providing adequate designs and safeguards for their hardware, software and systems which
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including without limitation, this document, the specifications, the data sheets and application notes for Product and the precautions and
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