Texas Instruments TPS72101DBV, TPS72115DBV, TPS72116DBV, TPS72118DBV Schematic [ru]
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3
2
4
5
DBV PACKAGE
(TOP VIEW)
1
IN
GND
EN
OUT
NC/FB
TPS72115
0.1 µF 0.1 µF
1.8 V 1.5 V
GND
OUTIN
EN
LOW INPUT VOLTAGE, CAP FREE 150-mA
LOW-DROPOUT LINEAR REGULATORS
FEATURES DESCRIPTION
• 150-mA LDO
• Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output
and Adjustable (1.2-V to 2.5-V) Versions
• Low Input Voltage Requirement (Down to
1.8 V)
• Small Output Capacitor, 0.1-µF
• Dropout Voltage Typically 200 mV at 150 mA
• Less Than 1 µA Quiescent Current in
Shutdown Mode
• Thermal Protection
• Over Current Limitation
• 5-Pin SOT-23 (DBV) Package
APPLICATIONS
• Portable Communication Devices
• Battery Powered Equipment
• PCMCIA Cards
• Personal Digital Assistants
• Modems
• Bar Code Scanners
• Backup Power Supplies
• SMPS Post Regulation
• Internet Audio
TPS72101 , , TPS72115
TPS72116 , TPS72118
SLVS352C – DECEMBER 2001 – REVISED MARCH 2006
The TPS721xx family of LDO regulators is available
in fixed voltage options that are commonly used to
power the latest DSPs and microcontrollers with an
adjustable option ranging from 1.22 V to 2.5 V. These
regulators can be used in a wide variety of
applications ranging from portable, battery-powered
equipment to PC peripherals. The family features
operation over a wide range of input voltages (1.8 V
to 5.5 V) and low dropout voltage (150 mV at full
load). Therefore, compared to many other regulators
that require 2.5-V or higher input voltages for
operation, these regulators can be operated directly
from two AAA batteries. Also, the typical quiescent
current (ground pin current) is low, starting at 85 µA
during normal operation and 1 µA in shutdown mode.
These regulators can be operated very efficiently and,
in a battery-powered application, help extend the
longevity of the device.
Similar LDO regulators require 1-µF or larger output
capacitors for stability. However, this regulator uses
an internal compensation scheme that stabilizes the
feedback loop over the full range of input voltages
and load currents with output capacitances as low as
0.1-µF. Ceramic capacitors of this size are relatively
inexpensive and available in small footprints.
This family of regulators is particularly suited as a
portable power supply solution due to its minimal
board space requirement and 1.8-V minimum input
voltage. Being able to use two off-the-shelf AAA
batteries makes system design easier and also
reduces component cost. Moreover, the solution will
be more efficient than if a regulator with a higher
input voltage is used.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2001–2006, Texas Instruments Incorporated
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TPS72101 , , TPS72115
TPS72116 , TPS72118
SLVS352C – DECEMBER 2001 – REVISED MARCH 2006
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ORDERING INFORMATION
T
J
-40°C to 125°C
(1) The DBVT indicates tape and reel of 250 parts.
(2) The DBVR indicates tape and reel of 3000 parts.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted
Voltage range at IN -0.3 V to 7 V
Voltage range at EN -0.3 V to 7 V
Voltage on OUT, FB, NC -0.3 V to VI+ 0.3 V
Peak output current Internally limited
ESD rating, HBM 3 kV
Continuous total power dissipation See Dissipation Rating Table
Operating junction temperature range, T
Storage temperature range, T
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.All voltage
values are with respect to network ground terminal.
(2) All voltage values are with respect to network ground terminal.
VOLTAGE PACKAGE PART NUMBER SYMBOL
Adjustable TPS72101DBVT
1.5 V TPS72115DBVT
1.6 V TPS72116DBVT
1.8 V TPS72118DBVT
J
stg
SOT-23
(DBV)
(1) (2)
(1)
(1)
(1)
(1)
TPS72101DBVR
TPS72115DBVR
TPS72116DBVR
TPS72118DBVR
(2)
(2)
(2)
(2)
TPS72101, TPS72115,
TPS72116, TPS72118
-40°C to 150°C
-65°C to 150°C
PEKI
PEII
PHFI
PEJI
PACKAGE DISSIPATION RATING
BOARD PACKAGE R
(1)
Low-K
(2)
High-K
DBV 65.8 °C/W 259 °C/W 3.9 mW/°C 386 mW 212 mW 154 mW
DBV 65.8 °C/W 180 °C/W 5.6 mW/°C 555 mW 305 mW 222 mW
Θ JC
R
Θ JA
(1) The JEDEC Low-K (1s) board design used to derive this data was a 3 inch x 3 inch, two-layer board with 2 ounce copper traces on top
of the board.
(2) The JEDEC High-K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and
ground planes and 2 ounce copper traces on top and bottom of the board.
2
DERATING FACTOR TA≤ 25°C TA= 70°C TA= 85°C
ABOVE TA= 25°C POWER RATING POWER RATING POWER RATING
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ELECTRICAL CHARACTERISTICS
over recommended operating junction temperature range V
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
V
I
T
V
I
Input voltage
IN
Output voltage range TPS72101 1.225 2.5 V
OUT
Continuous output current 0 150 mA
OUT
Operating junction temperature -40 125 °C
J
Output voltage TJ= 25°C 1.6 V
OUT
Quiescent current (GND current) µA
(Q)
Standby current µA
V
V
PSRR
Output noise voltage TPS72115 Co= 1 µF 90 µV
n
Reference voltage TJ= 25°C 1.225 V
ref
Ripple rejection TJ= 25°C; See
Current limit See
Output voltage line regulation
( ∆ V
OUT
Output voltage load
regulation
V
V
I
V
I
EN high level input 1.4
IH
EN low level input -0.2 0.4
IL
EN input current µA
I
Dropout voltage
DO
Feedback input current TPS72101 1 µA
n
Thermal shutdown temperature 170 °C
Thermal shutdown hysteresis 20 °C
(1)
TPS72101 0 µA < I
TPS72115
TPS72116
TPS72118
TJ= 25°C 1.5
0 µA < I
0 µA < I
TJ= 25°C 1.8
0 µA < I
< 150 mA
OUT
< 150 mA 2.5 V ≤ VIN≤ 5.5 V 1.455 1.545
OUT
< 150 mA 2.6 V ≤ VIN≤ 5.5 V 1.552 1.648
OUT
< 150 mA 2.8 V ≤ VIN≤ 5.5 V 1.746 1.854
OUT
TJ= 25°C 85
I
= 150 mA TJ= 25°C 570
OUT
I
= 150 mA 850
OUT
EN < 0.5 V TJ= 25°C 0.01
EN < 0.5 V 1
BW = 200 Hz to 100 kHz, T
= 25°C
f = 100 Hz, Co= 10 µF, I
= 150 mA
(2)
(1)
/V
)
OUT
TPS72118 0 < I
VO+ 1 V < VIN≤ 2.5 V %/V
< 150 mA TJ= 25°C 0.5 mV
OUT
EN = 0 V -0.01
EN = IN -0.01
(3)
TPS72118 I
TPS72101 I
= 150 mA TJ= 25°C 150
OUT
= 150 mA 1.2 V ≤ VO≤ 5.2 V 240
OUT
TPS72101 , , TPS72115
TPS72116 , TPS72118
SLVS352C – DECEMBER 2001 – REVISED MARCH 2006
= V
IN
OUT(Nom)
(1)
OUT
+ 1 V, I
= 1 mA, EN = VIN, C
OUT
1.8 5.5 V
1.8 V ≤ V
J
≤ 2.5 V 0.97 V
OUT
(1)
O
175 525 mA
TJ= 25°C 0.03 0.09
= 1 µF (unless
OUT
1.03 V
O
120
48 dB
0.1
V
mV
(1) Minimum IN operating voltage is 1.8 V or V
(2) Test condition includes output voltage VO= 1 V and pulse duration = 10 mS.
+ VDO, whichever is greater.
OUT
(3) Dropout voltage is defined as the differential voltage between VOand VIwhen VOdrops 100 mV below the value measured with VIN=
V
+ VDO.
OUT
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TPS72101
OUT
IN
FB
GND
EN
Current Limit /
Thermal
Protection
V
REF
1.225V
TPS72115/16/18
OUT
IN
GND
EN
Current Limit /
Thermal
Protection
NC
(A)
V
REF
1.225V
TPS72101 , , TPS72115
TPS72116 , TPS72118
SLVS352C – DECEMBER 2001 – REVISED MARCH 2006
Figure 1. FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION
A. This pin must be left floating and not connected to GND.
Figure 2. FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION
Terminal Functions
TERMINAL
NAME NO.
GND 2 Ground
EN 3 Enable input
IN 1 Input supply voltage
NC/FB 4 NC = Not connected (see
OUT 5 Regulated output voltage
4
(A)
); FB = Feedback (adjustable option TPS72101)
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DESCRIPTION
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1.7995
1.7996
1.7997
1.7998
1.7999
1.8000
1.8001
1.8002
0 30 60 90 120 150
I
O
− Output Current − mA
− Output Voltage − V
V
O
VI = 2.8 V
Co = 1 µF
TJ = 25° C
TJ − Junction Temperature − °C
− Output Voltage − V
V
O
IO = 150 mA
IO = 1 mA
VI = 2.8 V
Co = 1 µF
1.7900
1.7920
1.7940
1.7960
1.7980
1.8000
1.8020
1.8040
−40−25−10 5 20 35 50 65 80 95 110 125
0
100
200
300
400
500
600
700
−40−25−10 5 20 35 50 65 80 95 110 125
T
J
− Junction Temperature − °C
Ground Current −
IO = 150 mA
VI = 2.8 V
Co = 1 µF
IO = 1 mA
Aµ
f − Frequency − Hz
IO = 1 mA
VI = 2.8 V
Co = 1 µF
IO = 150 mA
Output Impedance − Ω
1
0.1
0.01
1 10 100 1 k 10 k10100 k 1 M 10 M
0.001
100
1 k
0
100
300
400
500
600
700
I
O
− Output Current − mA
Ground Current − Aµ
TJ = 25° C
TJ = 125° C
0 60 90 120 150
TJ = −40° C
VI = 2.8 V
Co = 1 µF
30
200
0
0.5
1
1.5
2
2.5
100 1 k 10 k 100 k
f − Frequency − Hz
IO = 1 mA
VI = 2.8 V
Co = 1 µF
IO = 150 mA
V/ HzOutput Spectral Noise Density −
µ
SLVS352C – DECEMBER 2001 – REVISED MARCH 2006
TYPICAL CHARACTERISTICS
TPS72118 TPS72118 TPS72118
OUTPUT VOLTAGE OUTPUT VOLTAGE GROUND CURRENT
vs vs vs
OUTPUT CURRENT JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 3. Figure 4. Figure 5.
TPS72101 , , TPS72115
TPS72116 , TPS72118
TPS72118 TPS72118 TPS72118
GROUND CURRENT OUTPUT SPECTRAL NOISE OUTPUT IMPEDANCE
vs DENSITY vs
OUTPUT CURRENT vs FREQUENCY
FREQUENCY
Figure 6. Figure 7. Figure 8.
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