TCR8BM series
TOSHIBA CMOS Linear Integrated Circuit Silicon Monolithic
TCR8BM series
800 mA CMOS Ultra Low Dropout Regulator
The TCR8BM series are CMOS single-output voltage regulators with an
on/off control input, featuring ultra low dropout voltage, high PSRR, low
inrush current and fast load transient response.
A differentiating feature is the use of a secondary bias rail as a reference
voltage that allows ultra low dropout of 170 mV (Typ.) at IOUT = 800 mA ( 1.1
V output, VBIAS = 3.3 V ).
These voltage regulators are available in fixed output voltages between 0.8
V and 3.6 V, and capable of driving up to 800 mA. Other features include
overcurrent protection, thermal shutdown, and Auto-discharge.
The TCR8BM series are offered in the ultra small plastic mold package
DFN5B (1.2 mm x 1.2 mm; t 0.38 mm).
As small ceramic input and output capacitors can be used with the
TCR8BM series, these devices are ideal for portable applications that require
high-density board assembly such as cellular phones.
DFN5B
Weight : 1.4 mg ( Typ.)
Features
•
Low dropout voltage
VDO = 170 mV (Typ.) at 1.1 V output, VBIAS = 3.3 V , IOUT = 800 mA
•
Low stand-by current ( IBIAS(OFF) = 1 μA (Max))
•
Low quiescent bias current ( IBIAS(ON) = 20 μA (Typ.) at VBIAS = 5.5 V, IOUT = 0 mA )
•
Wide range output voltage line up ( VOUT = 0.8 to 3.6 V )
•
Overcurrent protection
•
Thermal shutdown
•
Inrush current reduction
•
Under voltage lockout (TCR8BMxxA products)
•
Auto-discharge
•
Pull down connection between CONTROL and GND
•
Ultra small package DFN5B (1.2 mm x 1.2 mm ; t 0.38 mm )
Start of commercial production
2018-08
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TCR8BM series
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
Bias voltage
VBIAS
-0.3 to 6.0
V
Input voltage
VIN
-0.3 to 6.0
V
Control voltage
VCT
-0.3 to 6.0
V
Output voltage
VOUT
-0.3 to VIN + 0.3 ≤ 6.0
V
Power dissipation
PD
600
Junction temperature
Tj
-40 to 150
°C
Tstg
−55 to 150
°C
Storage temperature range
Note:
(Note 1)
mW
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 and the
operating ranges.
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).
Note 1:
Rating at mounting on a board
(Glass epoxy board dimension : 40 mm x 40 mm (4layer),t = 1.8 mm
Metal pattern ratio : approximately 70% each layer)
Operating Ranges
Characteristics
Symbol
Rating
Unit
Bias voltage
VBIAS
(VOUT + 1.4 ≥ 2.5) to 5.5
V
Input voltage
VIN
VOUT + VDO to VBIAS
V
Control voltage
VCT
0 to VBIAS
V
Output voltage
VOUT
0.8 to 3.6
V
Output current
IOUT
0 to 0.8
Operation Temperature
Topr
−40 to 85
COUT
COUT
≥ 2.2 μF
―
CIN
≥ 1.0 μF
―
CBIAS
≥ 0.1 μF
―
CIN
CBIAS
Note 2:
(Note 2)
A
°C
Do not operate at or near the maximum ratings of operating ranges for extended periods of time. Exposure to
such conditions may adversely impact product reliability and results in failures not covered by warranty.
Maximum operating ranges output current specification defined as lifetime average junction temperature of
+45°C where max rated DC current = lifetime average current to avoid electro migration.
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Pin Assignment (top view)
VIN
4
CONTROL
3
5*
1
2
VOUT
VBIAS
*Center electrode is GND
List of Products Number, Output voltage and Marking
Product No.
VOUT(V)(Typ.)
Marking
Product No.
VOUT(V)(Typ.)
Marking
TCR8BM08A*
0.8
0P8
TCR8BM19A*
1.9
1P9
TCR8BM085A*
0.85
0PJ
TCR8BM20A*
2.0
2P0
TCR8BM09A*
0.9
0P9
TCR8BM21A*
2.1
2P1
TCR8BM095A*
0.95
0PK
TCR8BM22A*
2.2
2P2
TCR8BM10
1.0
1M0
TCR8BM23A*
2.3
2P3
TCR8BM10A*
1.0
1P0
TCR8BM24A*
2.4
2P4
TCR8BM105
1.05
1MA
TCR8BM25A*
2.5
2P5
TCR8BM105A*
1.05
1PA
TCR8BM26A*
2.6
2P6
TCR8BM11
1.1
1M1
TCR8BM27A*
2.7
2P7
TCR8BM11A*
1.1
1P1
TCR8BM28A*
2.8
2P8
TCR8BM115A*
1.15
1PB
TCR8BM285A*
2.85
2PJ
TCR8BM12
1.2
1M2
TCR8BM29A*
2.9
2P9
TCR8BM12A*
1.2
1P2
TCR8BM295A*
2.95
2PK
TCR8BM125A*
1.25
1PC
TCR8BM30A*
3.0
3P0
TCR8BM13A*
1.3
1P3
TCR8BM31A*
3.1
3P1
TCR8BM14A*
1.4
1P4
TCR8BM32A*
3.2
3P2
TCR8BM15A*
1.5
1P5
TCR8BM33A*
3.3
3P3
TCR8BM16A*
1.6
1P6
TCR8BM34A*
3.4
3P4
TCR8BM17A*
1.7
1P7
TCR8BM35A*
3.5
3P5
TCR8BM18A*
1.8
1P8
TCR8BM36A*
3.6
3P6
* Please contact your local Toshiba representative if you are interested in products with * sign
TCR8BMxxA products have under voltage lockout function.
Top Marking (top view)
Example: TCR8BM10 (1.0 V output)
1M0
Lot code
INDEX
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TCR8BM series
•
Block Diagram
VOUT
VIN
Under
*Option
voltage
VBIAS
lockout
Thermal
shutdown
+
-
Current
Limit
CONTROL
Control
Logic
Pull down
GND
* Under voltage lockout is applied TCR8BMxxA products.
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Electrical Characteristics
(Unless otherwise specified, VBIAS = 3.3 V or VOUT + 1.9 V whichever is greater, VIN = VOUT + 0.5 V,
CIN = 1.0 μF, COUT = 2.2 μF, CBIAS = 0.1 μF)
Tj = -40 to 85°C
(Note 8)
Tj = 25°C
Characteristics
Output voltage accuracy
Symbol
VOUT
Test Condition
VOUT < 1.8 V
IOUT = 50 mA
(Note 3) 1.8 V ≤ VOUT
Min
Typ.
Max
Min
Max
Unit
-18
―
+18
―
―
mV
-1.0
―
+1.0
―
―
%
Line regulation
Reg・line
VOUT + 0.5 V ≤ VIN ≤ 5.5 V,
IOUT = 1 mA
―
0.1
―
―
―
mV
Load regulation
Reg・load
1 mA ≤ IOUT ≤ 800 mA
―
10
―
―
―
mV
Quiescent current
(Note 4)
IBIAS (ON)
IOUT = 0 mA, VBIAS current
―
20
―
―
36
IOUT = 0 mA, VIN current
―
3
―
―
6
VCT = 0 V, VBIAS current
―
0.1
―
―
1.0
μA
VCT = 0 V, VIN current
―
―
0.5
―
―
μA
―
0.1
―
―
―
μA
IOUT = 800 mA, VBIAS = 3.3 V
VOUT = 1.1 V (Note 6)
―
170
―
―
245
mV
Stand-by current
IIN (ON)
IBIAS (OFF)
IIN (OFF)
Control pull down current
ICT
Dropout voltage
VDO
(Note 5)
―
μA
Under voltage lockout
(Note 9)
VUVLO
VIN voltage
―
0.6
―
―
0.75
V
Temperature coefficient
TCVO
−40°C ≤ Topr ≤ 85°C
―
70
―
―
―
ppm/°C
Output noise voltage
VNO
VBIAS = 3.3 V, VIN = VOUT + 0.5 V
IOUT = 10 mA, 10 Hz ≤ f ≤ 100 kHz
(Note 7)
―
40
―
―
―
μVrms
Ripple rejection ratio
R.R.
VBIAS = 3.3 V, VIN = VOUT + 1 V
IOUT = 10 mA, f = 1 kHz
(Note 7)
VIN Ripple = 200 mVp-p
―
98
―
―
―
dB
IOUT = 1 mA to 800 mA
(Note 5)
―
-100
―
―
―
IOUT = 800 mA to 1 mA
(Note 5)
―
100
―
―
―
Load transient response
∆VOUT
mV
Control voltage (ON)
VCT (ON)
―
0.9
―
VBIAS
1.0
VBIAS
V
Control voltage (OFF)
VCT (OFF)
―
0
―
0.4
0
0.4
V
Current limit
ICL
―
―
1100
―
850
―
mA
Output discharge
on resistance
RSD
―
―
10
―
―
―
Ω
Note 3:
Note 4:
Note 5:
Note 6:
Stable state with fixed IOUT condition
Except Control pull down current
The 1.0 V output product
VDO = VIN1 - (VOUT1 x 0.97)
VOUT1 is the output voltage when VIN = VOUT + 0.5 V.
VIN1 is the input voltage at which the output voltage becomes 97% of VOUT1 after gradually decreasing the input
voltage.
Note 7: The 0.8 V output product.
Note 8: This parameter is guaranteed by design.
Note 9: Under voltage lockout is applied TCR8BMxxA products.
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TCR8BM series
Dropout voltage
( CIN = 1.0 μF, COUT = 2.2 μF, CBIAS = 0.1 μF, Tj = 25°C)
IOUT = 800 mA
Output voltages
VBIAS input voltage
Min
Typ.
Max
(Note 10)
Unit
0.8 V
3.3 V
―
150
210
mV
0.85 V
3.3 V
―
155
215
mV
0.9 V
3.3 V
―
155
220
mV
0.95 V
3.3 V
―
160
225
mV
1.0 V
3.3 V
―
165
230
mV
1.05 V
3.3 V
―
165
240
mV
1.1 V
3.3 V
―
170
245
mV
1.15 V
3.3 V
―
175
255
mV
1.2 V
3.3 V
―
180
260
mV
1.25 V
3.3 V
―
185
275
mV
1.3 V
3.3 V
―
190
285
mV
1.4 V
3.3 V
―
205
320
mV
1.5 V
3.4 V
―
205
315
mV
1.6 V
3.5 V
―
205
310
mV
1.7 V, 1.8 V
VOUT + 1.9 V
―
200
305
mV
1.9 V, 2.0 V
VOUT + 1.9 V
―
200
300
mV
2.1 V, 2.2 V
VOUT + 1.9 V
―
200
295
mV
2.3 V ≤ VOUT ≤ 2.6 V
VOUT + 1.9 V
―
195
290
mV
2.7 V ≤ VOUT ≤ 3.6 V
VOUT + 1.9 V
―
195
285
mV
Note 10:
Tj = -40 to 85 °C This parameter is guaranteed by design
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TCR8BM series
•
Application Note
1.
Example of Application Circuit
VBIAS
CONTROL
ON/OFF
VBIAS
0.1 μF
GND
VIN
1.0 μF
CONTROL
Output
voltage
voltage
HIGH
ON
LOW
OFF
OPEN
OFF
VOUT
2.2 μF
CL
RL LOAD
The figure above shows the Example of configuration for using a Low dropout regulator. Insert a capacitor at VIN, VOUT
and VBIAS pins for stable input/output operation. (Ceramic capacitors can be used).
2. Power Dissipation
Board-mounted power dissipation ratings for TCR8BM series are available in the Absolute Maximum Ratings table.
Power dissipation is measured on the board condition shown in below.
[The Board Condition]
Board material: Glass epoxy (FR4)
Board dimension: 40 mm x 40 mm (4layer),t = 1.8 mm
Metal pattern ratio: approximately 70% each layer
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Attention in Use
● Capacitors(Output, Input, and Bias Capacitor)
Ceramic capacitors can be used for these devices. However, because of the type of the capacitors, there might be unexpected
thermal features. Please consider application condition for selecting capacitors. For stable operation, please use over 1.0 μF
input capacitor, 0.1 μF bias capacitor and 2.2 μF output ceramic capacitor.
●
Recommending for Control Pin Operation
This device is optimized to operate the best performance when turn on and off with control pin. Especially the rush current
and bias current can be suppressed by using control pin after applying VIN and VBIAS.
TCR8BMxxA products have VIN under voltage lockout function, bias current is suppressed at low VIN even when VBIAS and
VCT are applied.
●
Mounting
The long distance between IC and output capacitor might affect phase compensation by impedance in wire and inductor. For
stable power supply, output capacitor need to mount near IC as much as possible. Also VIN and GND pattern need to be
large and make the wire impedance small as possible.
●
Permissible Loss
Please have enough design patterns for expected maximum permissible loss. And under consideration of ambient
temperature, input voltage, and output current etc, we recommend proper dissipation ratings for maximum permissible loss;
in general maximum dissipation rating is 70 to 80 percent.
●
Over current Protection and Thermal shut down function
Over current protection and Thermal shut down function are designed in these products, but these are not designed to
constantly ensure the suppression of the device within operation limits. Depending on the condition during actual usage, it
could affect the electrical characteristic specification and reliability. Also note that if output pins and GND pins are not
completely shorted out, these products might break down.
When using these products, please read through and understand the concept of dissipation 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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TCR8BM series
Package Dimensions
DFN5B
Unit: mm
Weight : 1.4 mg ( Typ.)
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TCR8BM series
Land pattern dimensions for reference only
DFN5B
Unit: mm
0.18
1.5
0.8
C0.18
0.2
45°
0.45
0.63
0.3
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TCR8BM series
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complying with safety standards and for providing adequate designs and safeguards for their hardware, software and systems which
minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily injury or damage to
property, including data loss or corruption. Before customers use the Product, create designs including the Product, or incorporate the
Product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant TOSHIBA information,
including without limitation, this document, the specifications, the data sheets and application notes for Product and the precautions and
conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the instructions for the application with which the Product
will be used with or for. Customers are solely responsible for all aspects of their own product design or applications, including but not limited
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