TI TLV70212DBVT

TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
300-mA, Low-IQ, Low-Dropout Regulator
FEATURES
DESCRIPTION
• Very Low Dropout:
– 37 mV at IOUT = 50 mA, VOUT = 2.8 V
– 75 mV at IOUT = 100 mA, VOUT = 2.8 V
– 220mV at IOUT = 300 mA, VOUT = 2.8 V
• 2% Accuracy
• Low IQ: 35 μA
• Fixed-Output Voltage Combinations Possible
from 1.2 V to 4.8 V
• High PSRR: 68 dB at 1 kHz
• Stable with Effective Capacitance of 0.1 μF(1)
• Thermal Shutdown and Overcurrent Protection
• Packages: SOT23-5 and 1,5mm × 1,5mm SON-6
The TLV702xx series of low-dropout (LDO) linear
regulators are low quiescent current devices with
excellent line and load transient performance. These
LDOs are designed for power-sensitive applications.
A precision bandgap and error amplifier provides
overall 2% accuracy. Low output noise, very high
power-supply rejection ratio (PSRR), and low-dropout
voltage make this series of devices ideal for a wide
selection of battery-operated handheld equipment. All
device versions have thermal shutdown and current
limit for safety.
1
234
(1)
See the Input and Output Capacitor Requirements in the
Application Information section.
The TLV702xxP series also provides an active
pulldown circuit to quickly discharge the outputs.
APPLICATIONS
•
•
•
•
•
•
•
Furthermore, these devices are stable with an
effective output capacitance of only 0.1 μF. This
feature enables the use of cost-effective capacitors
that have higher bias voltages and temperature
derating. The devices regulate to specified accuracy
with no output load.
Wireless Handsets
Smart Phones, PDAs
MP3 Players
ZigBee® Networks
Bluetooth® Devices
Li-Ion Operated Handheld Products
WLAN and Other PC Add-on Cards
The TLV702xx series of LDO linear regulators are
available in SOT23-5 and 1,5mm × 1,5mm SON-6
packages.
VIN
IN
OUT
CIN
COUT
VOUT
1 mF
Ceramic
TLV702xx
TLV702xxDBV
SOT23-5
(TOP VIEW)
IN
1
GND
2
EN
3
5
4
TLV702xxDSE
1,5mm ´ 1,5mm SON
(TOP VIEW)
OUT
IN 1
6
EN
GND 2
5
N/C
OUT 3
4
N/C
On
Off
EN
GND
Typical Application Circuit
(Fixed-Voltage Versions)
N/C
1
2
3
4
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.
Bluetooth is a registered trademark of Bluetooth SIG.
ZigBee is a registered trademark of the ZigBee Alliance.
All other trademarks are the property of their respective owners.
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.
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION (1)
(2)
PRODUCT
VOUT
TLV702xx(x)Pyyyz
XX(X) is the nominal output voltage. For output voltages with a resolution of 100 mV, two digits are used in
the ordering number; otherwise, three digits are used (for example, 28 = 2.8 V; 475 = 4.75 V).
P is optional; devices with P have an LDO regulator with an active output discharge.
YYY is the package designator.
Z is package quantity. Use "R" for reel (3000 pieces), and "T" for tape (250 pieces).
(1)
(2)
For the most current package and ordering information see the Package Option Addendum at the end of this document, or visit the
device product folder at www.ti.com.
Output voltages from 1.2 V to 4.8 V in 50-mV increments are available. Contact factory for details and availability.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted) (1)
VALUE
Voltage
(2)
Current (source)
MAX
IN
–0.3
+6.0
V
EN
–0.3
+6.0
V
OUT
–0.3
+6.0
V
OUT
Internally Limited
Output short-circuit duration
Indefinite
Temperature
Operating virtual junction, TJ
–55
+150
Storage, Tstg
–55
+150
°C
2
kV
500
V
Human Body Model (HBM) QSS 009-105 (JESD22-A114A)
Electrostatic Discharge Rating (3)
(1)
(2)
(3)
UNIT
MIN
Charge Device Model (CDM) QSS 009-147
(JESD22-C101B.01)
°C
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 my affect device reliability.
All voltages are with respect to network ground terminal.
ESD testing is performed according to the respective JESD22 JEDEC standard.
DISSIPATION RATINGS (1)
(1)
2
PACKAGE
RθJA
TA < +25°C
TA = +70°C
TA = +85°C
DBV
200°C/W
500mW
275mW
200mW
DSE
180°C/W
555mW
305mW
222mW
For board details, see the Thermal Information section.
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
At VIN = VOUT(TYP) + 0.5 V or 2.0 V (whichever is greater); IOUT = 10 mA, VEN = 0.9 V, COUT = 1.0 μF, and TJ = –40°C to
+125°C, unless otherwise noted. Typical values are at TJ = +25°C.
SPACE
PARAMETER
TEST CONDITIONS
VIN
Input voltage range
VOUT
DC output accuracy
–40°C ≤ TJ ≤ +125°C
ΔVO/ΔVIN
Line regulation
ΔVO/ΔIOUT
Load regulation
VDO
ICL
IGND
Output current limit
Ground pin current
TYP
MAX
2.0
UNIT
5.5
V
0.5
+2
%
VOUT(NOM) + 0.5 V ≤ VIN ≤ 5.5 V,
IOUT = 10 mA
1
5
mV
0 mA ≤ IOUT ≤ 300 mA
1
15
mV
–2
VIN = 0.98 × VOUT(NOM), IOUT = 50 mA,
VOUT = 2.8 V
37
mV
VIN = 0.98 × VOUT(NOM), IOUT = 100 mA,
VOUT = 2.8 V
75
mV
VIN = 0.98 × VOUT(NOM), IOUT = 300 mA,
VOUT = 2.35 V
260
375
mV
500
860
mA
35
55
μA
VOUT = 0.9 × VOUT(NOM)
320
IOUT = 0 mA
IOUT = 300 mA, VIN = VOUT + 0.5 V
370
μA
VEN ≤ 0.4 V, VIN = 2.0 V
400
nA
ISHDN
Ground pin current (shutdown)
PSRR
Power-supply rejection ratio
VIN = 2.3 V, VOUT = 1.8 V,
IOUT = 10 mA, f = 1 kHz
68
dB
Output noise voltage
BW = 100 Hz to 100 kHz,
VIN = 2.3 V, VOUT = 1.8 V, IOUT = 10 mA
48
μVRMS
VN
tSTR
Startup time
(2)
VEN(HI)
Enable pin high (enabled)
VEN(LO)
Enable pin low (disabled)
IEN
UVLO
RDISCHARGE
(1)
(2)
Dropout voltage (1)
MIN
VEN ≤ 0.4 V, 2.0 V ≤ VIN ≤ 4.5 V,
TJ = –40°C to +85°C
COUT = 1.0 μF, IOUT = 300 mA
V
μA
VIN rising
1.9
V
VEN = 0 V
120
Ω
Shutdown, temperature increasing
+165
°C
Reset, temperature decreasing
+145
°C
Active pulldown resistance
(TLV702xxP only)
Operating junction temperature
0.4
V
0.04
Undervoltage lockout
TJ
μs
VIN
0
VIN = VEN = 5.5 V
Thermal shutdown temperature
μA
2
100
0.9
Enable pin current
TSD
1
–40
+125
°C
VDO is measured for devices with VOUT(NOM) ≥ 2.35 V.
Startup time = time from EN assertion to 0.98 × VOUT(NOM).
© 2010–2011, Texas Instruments Incorporated
Submit Documentation Feedback
3
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
FUNCTIONAL BLOCK DIAGRAMS
IN
OUT
Current
Limit
Thermal
Shutdown
UVLO
EN
Bandgap
LOGIC
TLV702xx Series
GND
Figure 1. TLV702xx
IN
OUT
Current
Limit
Thermal
Shutdown
UVLO
EN
120W
Bandgap
LOGIC
TLV702xxP Series
GND
Figure 2. TLV702xxP
4
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
PIN CONFIGURATIONS
DBV PACKAGE
SOT23-5
(TOP VIEW)
IN
1
GND
2
EN
3
5
OUT
4
NC
DSE PACKAGE
1,5mm × 1,5mm SON-6
(TOP VIEW)
IN 1
6
EN
GND 2
5
N/C
OUT 3
4
N/C
PIN DESCRIPTIONS
PIN
NAME
SOT23-5
DBV
SON-6
DSE
DESCRIPTION
IN
1
1
Input pin. A small 1-μF ceramic capacitor is recommended from this pin to ground to assure stability and
good transient performance. See Input and Output Capacitor Requirements in the Application Information
section for more details.
GND
2
2
Ground pin
Enable pin. Driving EN over 0.9 V turns on the regulator. Driving EN below 0.4 V puts the regulator into
shutdown mode and reduces operating current to 1 μA, nominal.
For TLV702xxP, output voltage is discharged through an internal 120-Ω resistor when device is shut
down.
EN
3
6
NC
4
4, 5
OUT
5
3
No connection. This pin can be tied to ground to improve thermal dissipation.
Regulated output voltage pin. A small 1-μF ceramic capacitor is needed from this pin to ground to assure
stability. See Input and Output Capacitor Requirements in the Application Information section for more
details.
© 2010–2011, Texas Instruments Incorporated
Submit Documentation Feedback
5
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
TYPICAL CHARACTERISTICS
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(TYP) + 0.5 V or 2.0 V, whichever is greater;
IOUT = 10 mA, VEN = VIN, COUT = 1.0 μF, unless otherwise noted. Typical values are at TJ = +25°C.
LINE REGULATION
LINE REGULATION
1.90
1.90
VOUT = 1.8 V
IOUT = 10 mA
1.86
1.86
1.84
1.84
1.82
1.82
1.80
1.78
1.76
1.72
1.80
1.78
1.76
+125°C
+85°C
+25°C
-40°C
1.74
VOUT = 1.8 V
IOUT = 300 mA
1.88
VOUT (V)
VOUT (V)
1.88
+125°C
+85°C
+25°C
-40°C
1.74
1.72
1.70
1.70
2.1
2.6
3.1
3.6
4.1
VIN (V)
4.6
5.1
2.3
5.6
2.7
3.1
Figure 3.
3.5
3.9
VIN (V)
4.3
4.7
5.5
5.1
Figure 4.
LOAD REGULATION
DROPOUT VOLTAGE vs INPUT VOLTAGE
350
1.90
IOUT = 300mA
VOUT = 1.8 V
1.88
300
1.86
250
1.82
VDO (mV)
VOUT (V)
1.84
1.80
1.78
1.76
1.72
50
100
150
200
250
+125°C
+85°C
+25°C
-40°C
50
0
2.25
1.70
0
150
100
+125°C
+85°C
+25°C
-40°C
1.74
200
300
2.75
3.25
IOUT (mA)
Figure 5.
DROPOUT VOLTAGE vs OUTPUT CURRENT
OUTPUT VOLTAGE vs TEMPERATURE
1.90
VOUT = 4.8 V
VOUT = 1.8 V
1.88
250
1.86
1.84
VOUT (V)
200
VDO (mV)
4.75
4.25
Figure 6.
300
150
100
+125°C
+85°C
+25°C
-40°C
50
0
1.82
1.80
1.78
1.76
10mA
150mA
200mA
1.74
1.72
1.70
0
50
100
150
IOUT (mA)
Figure 7.
6
3.75
VIN (V)
Submit Documentation Feedback
200
250
300
-40 -25 -10
5
20 35 50 65
Temperature (°C)
80
95
110 125
Figure 8.
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(TYP) + 0.5 V or 2.0 V, whichever is greater;
IOUT = 10 mA, VEN = VIN, COUT = 1.0 μF, unless otherwise noted. Typical values are at TJ = +25°C.
GROUND PIN CURRENT vs INPUT VOLTAGE
GROUND PIN CURRENT vs LOAD
450
50
VOUT = 1.8 V
45
40
350
35
300
30
IGND (mA)
IGND (mA)
VOUT = 1.8 V
400
25
20
250
200
150
15
+125°C
+85°C
+25°C
-40°C
10
5
+125°C
+85°C
+25°C
-40°C
100
50
0
0
2.1
2.6
3.1
3.6
4.1
VIN (V)
4.6
5.1
0
5.6
100
50
Figure 9.
200
150
IOUT (mA)
250
300
Figure 10.
GROUND PIN CURRENT vs TEMPERATURE
SHUTDOWN CURRENT vs INPUT VOLTAGE
2.5
50
VOUT = 1.8 V
45
VOUT = 1.8 V
2
40
ISHDN (mA)
IGND (mA)
35
30
25
20
1.5
1
15
+125°C
+85°C
+25°C
-40°C
0.5
10
5
0
0
-40 -25 -10
5
20 35 50 65
Temperature (°C)
80
95
2.1
110 125
2.6
3.1
3.6
4.1
VIN (V)
Figure 11.
4.6
5.1
5.6
Figure 12.
CURRENT LIMIT vs INPUT VOLTAGE
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
100
700
VOUT = 1.8 V
IOUT = 10 mA
90
600
80
IOUT = 150 mA
70
PSRR (dB)
ILIM (mA)
500
400
300
200
+125°C
+85°C
+25°C
-40°C
100
60
50
40
30
20
10
VIN - VOUT = 0.5 V
0
0
2.3
2.7
3.1
3.5
3.9
VIN (V)
Figure 13.
© 2010–2011, Texas Instruments Incorporated
4.3
4.7
5.1
5.5
10
100
1k
10 k
100 k
1M
10 M
Frequency (Hz)
Figure 14.
Submit Documentation Feedback
7
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(TYP) + 0.5 V or 2.0 V, whichever is greater;
IOUT = 10 mA, VEN = VIN, COUT = 1.0 μF, unless otherwise noted. Typical values are at TJ = +25°C.
POWER-SUPPLY RIPPLE REJECTION vs INPUT VOLTAGE
VOUT = 1.8 V
1 kHz
70
PSRR (dB)
60
10 kHz
50
100 kHz
40
30
20
10
0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY
Output Spectral Noise Density (mV/ÖHz)
80
10
VOUT = 1.8 V
IOUT = 10 mA
CIN = COUT = 1 mF
1
0.1
0.01
0.001
10
2.8
100
1k
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
IOUT
0 mA
5 mV/div
VOUT
10 mA
0 mA
IOUT
VOUT
VOUT = 1.8 V
10 ms/div
10 ms/div
Figure 17.
Figure 18.
LOAD TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
tR =tF = 1 ms
50 mA
0 mA
200 mA/div
300mA
IOUT
100 mV/div
50 mA/div
tR = tF = 1 ms
20 mV/div
10 M
tR = tF = 1 ms
200 mA
VOUT = 1.8 V
VOUT
IOUT
0 mA
VOUT
VOUT = 1.8 V
8
1M
Figure 16.
20 mA/div
100 mA/div
100 k
Figure 15.
tR = tF = 1 ms
50 mV/div
10 k
Frequency (Hz)
Input Voltage (V)
VOUT = 1.8 V
10 ms/div
10 ms/div
Figure 19.
Figure 20.
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(TYP) + 0.5 V or 2.0 V, whichever is greater;
IOUT = 10 mA, VEN = VIN, COUT = 1.0 μF, unless otherwise noted. Typical values are at TJ = +25°C.
LINE TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
1 V/div
2.9 V
VIN
Slew Rate = 1 V/ms
2.9 V
2.3 V
VIN
VOUT
VOUT = 1.8 V
IOUT = 300 mA
5 mV/div
2.3 V
5 mV/div
1 V/div
Slew Rate = 1 V/ms
VOUT
VOUT = 1.8 V
IOUT = 1 mA
1 ms/div
Figure 22.
LINE TRANSIENT RESPONSE
VIN RAMP UP, RAMP DOWN RESPONSE
Slew Rate = 1 V/ms
VOUT = 1.8 V
IOUT = 300 mA
5.5 V
10 mV/div
2.1 V
VIN
VOUT = 1.8 V
IOUT = 1 mA
VIN
1 V/div
1 V/div
1 ms/div
Figure 21.
VOUT
VOUT
1 ms/div
Figure 23.
© 2010–2011, Texas Instruments Incorporated
200 ms/div
Figure 24.
Submit Documentation Feedback
9
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
APPLICATION INFORMATION
The TLV702xx belongs to a new family of
next-generation value LDO regulators. These devices
consume low quiescent current and deliver excellent
line and load transient performance. These
characteristics, combined with low noise and very
good PSRR with little (VIN – VOUT) headroom, make
this family of devices ideal for portable RF
applications. This family of regulators offers current
limit and thermal protection, and is specified
from –40°C to +125°C.
INPUT AND OUTPUT CAPACITOR
REQUIREMENTS
1.0-μF X5R- and X7R-type ceramic capacitors are
recommended because these capacitors have
minimal variation in value and equivalent series
resistance (ESR) over temperature.
However, the TLV702xx is designed to be stable with
an effective capacitance of 0.1 μF or larger at the
output. Thus, the device is stable with capacitors of
other dielectric types as well, as long as the effective
capacitance under operating bias voltage and
temperature is greater than 0.1 μF. This effective
capacitance refers to the capacitance that the LDO
sees under operating bias voltage and temperature
conditions; that is, the capacitance after taking both
bias voltage and temperature derating into
consideration. In addition to allowing the use of
lower-cost dielectrics, this capability of being stable
with 0.1-μF effective capacitance also enables the
use of smaller footprint capacitors that have higher
derating in size- and space-constrained applications.
NOTE: Using a 0.1-μF rated capacitor at the output
of the LDO does not ensure stability because the
effective capacitance under the specified operating
conditions would be less than 0.1 μF. Maximum ESR
should be less than 200 mΩ.
Although an input capacitor is not required for
stability, it is good analog design practice to connect
a 0.1-μF to 1.0-μF, low ESR capacitor across the IN
pin and GND pin of the regulator. This capacitor
counteracts reactive input sources and improves
transient response, noise rejection, and ripple
rejection. A higher-value capacitor may be necessary
if large, fast rise-time load transients are anticipated,
or if the device is not located close to the power
source. If source impedance is more than 2 Ω, a
0.1-μF input capacitor may be necessary to ensure
stability.
BOARD LAYOUT RECOMMENDATIONS TO
IMPROVE PSRR AND NOISE PERFORMANCE
Input and output capacitors should be placed as
close to the device pins as possible. To improve ac
performance such as PSRR, output noise, and
transient response, it is recommended that the board
be designed with separate ground planes for VIN and
VOUT, with the ground plane connected only at the
GND pin of the device. In addition, the ground
connection for the output capacitor should be
connected directly to the GND pin of the device. High
ESR capacitors may degrade PSRR performance.
INTERNAL CURRENT LIMIT
The TLV702xx internal current limit helps to protect
the regulator during fault conditions. During current
limit, the output sources a fixed amount of current
that is largely independent of the output voltage. In
such a case, the output voltage is not regulated, and
is VOUT = ILIMIT × RLOAD. The PMOS pass transistor
dissipates (VIN – VOUT) × ILIMIT until thermal shutdown
is triggered and the device turns off. As the device
cools, it is turned on by the internal thermal shutdown
circuit. If the fault condition continues, the device
cycles between current limit and thermal shutdown.
See the Thermal Information section for more details.
The PMOS pass element in the TLV702xx has a
built-in body diode that conducts current when the
voltage at OUT exceeds the voltage at IN. This
current is not limited, so if extended reverse voltage
operation is anticipated, external limiting to 5% of the
rated output current is recommended.
SHUTDOWN
The enable pin (EN) is active high. The device is
enabled when voltage at EN pin goes above 0.9V.
This relatively lower value of voltage required to turn
the LDO on can be exploited to power the LDO with a
GPIO of recent processors whose GPIO Logic 1
voltage level is lower than traditional microcontrollers.
The device is turned off when the EN pin is held at
less than 0.4V. When shutdown capability is not
required, EN can be connected to the IN pin.
The TLV702xxP version has internal active pull-down
circuitry that discharges the output with a time
constant of:
(120 · RL)
t=
· COUT
(120 + RL)
where:
•
•
10
Submit Documentation Feedback
RL = Load resistance
COUT = Output capacitor
(1)
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
DROPOUT VOLTAGE
The TLV702xx uses a PMOS pass transistor to
achieve low dropout. When (VIN – VOUT) is less than
the dropout voltage (VDO), the PMOS pass device is
in the linear region of operation and the
input-to-output resistance is the RDS(ON) of the PMOS
pass element. VDO scales approximately with output
current because the PMOS device behaves as a
resistor in dropout.
As with any linear regulator, PSRR and transient
response are degraded as (VIN – VOUT) approaches
dropout. This effect is shown in Figure 15 in the
Typical Characteristics section.
TRANSIENT RESPONSE
As with any regulator, increasing the size of the
output capacitor reduces over-/undershoot magnitude
but increases the duration of the transient response.
UNDERVOLTAGE LOCKOUT (UVLO)
The TLV702xx uses an undervoltage lockout circuit to
keep the output shut off until internal circuitry is
operating properly.
THERMAL INFORMATION
Thermal protection disables the output when the
junction temperature rises to approximately +165°C,
allowing the device to cool. When the junction
temperature cools to approximately +145°C, the
output circuitry is again enabled. Depending on power
dissipation, thermal resistance, and ambient
temperature, the thermal protection circuit may cycle
on and off. This cycling limits the dissipation of the
regulator, protecting it from damage as a result of
overheating.
Any tendency to activate the thermal protection circuit
indicates excessive power dissipation or an
inadequate heatsink. For reliable operation, junction
temperature should be limited to +125°C maximum.
To estimate the margin of safety in a complete design
(including
heatsink),
increase
the
ambient
temperature until the thermal protection is triggered;
use worst-case loads and signal conditions.
The internal protection circuitry of the TLV702xx has
been designed to protect against overload conditions.
It was not intended to replace proper heatsinking.
Continuously running the TLV702xx into thermal
shutdown degrades device reliability.
POWER DISSIPATION
The ability to remove heat from the die is different for
each
package
type,
presenting
different
considerations in the printed circuit board (PCB)
layout. The PCB area around the device that is free
of other components moves the heat from the device
to the ambient air.
Thermal performance data for TLV702xx were
gathered using the TLV700 evaluation module (EVM),
a 2-layer board with two ounces of copper per side.
The dimensions and layout for the SOT23-5 (DBV)
EVM are shown in Figure 25 and Figure 26.
Corresponding thermal performance data are given in
Table 1. Note that this board has provision for
soldering not only the SOT23-5 package on the
bottom layer, but also the SC-70 package on the top
layer. The dimensions and layout of the SON-6 (DSE)
EVM is shown in Figure 27 and Figure 28.
Corresponding thermal performance data is again
given in Table 1. Using heavier copper increases the
effectiveness in removing heat from the device. The
addition of plated through-holes to heat-dissipating
layers also improves heatsink effectiveness.
Power dissipation depends on input voltage and load
conditions. Power dissipation (PD) is equal to the
product of the output current and the voltage drop
across the output pass element, as shown in
Equation 2.
PD = (VIN - VOUT) ´ IOUT
(2)
PACKAGE MOUNTING
Solder pad footprint recommendations for the
TLV702xx are available from the Texas Instruments
web site at www.ti.com. The recommended land
pattern for the DBV and DSE packages are shown in
Figure 29 and Figure 30, respectively.
Table 1. EVM Dissipation Ratings
PACKAGE
RθJA
TA < +25°C
TA = +70°C
TA = +85°C
DBV
200°C/W
500mW
275mW
200mW
DSE
180°C/W
555mW
305mW
222mW
© 2010–2011, Texas Instruments Incorporated
Submit Documentation Feedback
11
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
18.16 mm
20.7 mm
Figure 25. HPA503 EVM Top Layer
18.16 mm
20.7 mm
Figure 26. HPA503 EVM Bottom Layer
12
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
17 mm
20.5 mm
Figure 27. DSE EVM Top Layer
17 mm
20.5 mm
Figure 28. DSE EVM Bottom Layer
© 2010–2011, Texas Instruments Incorporated
Submit Documentation Feedback
13
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
Example Board Layout
www.ti.com
Stencil Openings
Based on Stencil Thickness
of 0,127 mm (.005 in)
(1)
All linear dimensions are in millimeters.
(2)
Customers should place a note on the circuit board fabrication drawing not to alter the center solder mask defined
pad.
(3)
Publication IPC-7351 is recommended for alternate designs.
(4)
Laser-cutting apertures with trapedzoidal walls and also rounding corners will offer better paste release. Customers
should contact their board assembly site for stencil design recommendations. Example stencil design based on a 50%
volumetric load solder paste. Refer to IPC-7525 for other stencil recommendations.
Figure 29. Recommended Land Pattern for DBV Package
14
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
Figure 30. Recommended Land Pattern for DSE Package
© 2010–2011, Texas Instruments Incorporated
Submit Documentation Feedback
15
TLV702xx
SLVSAG6B – SEPTEMBER 2010 – REVISED FEBRUARY 2011
www.ti.com
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (October 2010) to Revision B
•
Added SON-6 (DSE) package and related references to data sheet ................................................................................... 1
Changes from Original (September 2010) to Revision A
•
16
Page
Page
Updated ordering number in Ordering Information table ...................................................................................................... 2
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated
PACKAGE OPTION ADDENDUM
www.ti.com
21-Mar-2011
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
Samples
(Requires Login)
TLV70212DBVR
PREVIEW
SOT-23
DBV
5
3000
TBD
Call TI
Call TI
TLV70212DBVT
PREVIEW
SOT-23
DBV
5
250
TBD
Call TI
Call TI
TLV70218DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70218DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70220PDBVR
PREVIEW
SOT-23
DBV
5
3000
TBD
TLV70220PDBVT
PREVIEW
SOT-23
DBV
5
250
TBD
TLV70225DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70225DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70225DSER
ACTIVE
WSON
DSE
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70225DSET
ACTIVE
WSON
DSE
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70228DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70228DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70228PDBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70228PDBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70229DSER
ACTIVE
WSON
DSE
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70229DSET
ACTIVE
WSON
DSE
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70230DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70230DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
Addendum-Page 1
(3)
Call TI
Call TI
Call TI
Call TI
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
21-Mar-2011
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
TLV70231DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70231DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70233DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70233DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70237DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV70237DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV702475DBVR
ACTIVE
SOT-23
DBV
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TLV702475DBVT
ACTIVE
SOT-23
DBV
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
(3)
Samples
(Requires Login)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
21-Mar-2011
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 3
PACKAGE MATERIALS INFORMATION
www.ti.com
19-Mar-2011
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
TLV70218DBVR
SOT-23
DBV
5
3000
180.0
8.4
TLV70225DBVR
SOT-23
DBV
5
3000
180.0
TLV70225DBVT
SOT-23
DBV
5
250
180.0
TLV70225DSER
WSON
DSE
6
3000
TLV70225DSET
WSON
DSE
6
TLV70228DBVR
SOT-23
DBV
TLV70228DBVT
SOT-23
DBV
TLV70228PDBVR
SOT-23
TLV70228PDBVT
TLV70229DSER
W
Pin1
(mm) Quadrant
3.23
3.17
1.37
4.0
8.0
Q3
8.4
3.23
3.17
1.37
4.0
8.0
Q3
8.4
3.23
3.17
1.37
4.0
8.0
Q3
180.0
8.4
1.83
1.83
0.89
4.0
8.0
Q2
250
180.0
8.4
1.83
1.83
0.89
4.0
8.0
Q2
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
DBV
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
SOT-23
DBV
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
WSON
DSE
6
3000
180.0
8.4
1.83
1.83
0.89
4.0
8.0
Q2
TLV70229DSET
WSON
DSE
6
250
180.0
8.4
1.83
1.83
0.89
4.0
8.0
Q2
TLV70230DBVR
SOT-23
DBV
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV70230DBVT
SOT-23
DBV
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV70231DBVR
SOT-23
DBV
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV70231DBVT
SOT-23
DBV
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV70233DBVR
SOT-23
DBV
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV70233DBVT
SOT-23
DBV
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV70237DBVR
SOT-23
DBV
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
19-Mar-2011
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
TLV70237DBVT
SOT-23
DBV
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV702475DBVR
SOT-23
DBV
5
3000
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
TLV702475DBVT
SOT-23
DBV
5
250
180.0
8.4
3.23
3.17
1.37
4.0
8.0
Q3
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TLV70218DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70225DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70225DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV70225DSER
WSON
DSE
6
3000
202.0
201.0
28.0
TLV70225DSET
WSON
DSE
6
250
202.0
201.0
28.0
TLV70228DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70228DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV70228PDBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70228PDBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV70229DSER
WSON
DSE
6
3000
202.0
201.0
28.0
TLV70229DSET
WSON
DSE
6
250
202.0
201.0
28.0
TLV70230DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70230DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV70231DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
Pack Materials-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
19-Mar-2011
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TLV70231DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV70233DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70233DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV70237DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV70237DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
TLV702475DBVR
SOT-23
DBV
5
3000
202.0
201.0
28.0
TLV702475DBVT
SOT-23
DBV
5
250
202.0
201.0
28.0
Pack Materials-Page 3
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Applications
Audio
www.ti.com/audio
Communications and Telecom www.ti.com/communications
Amplifiers
amplifier.ti.com
Computers and Peripherals
www.ti.com/computers
Data Converters
dataconverter.ti.com
Consumer Electronics
www.ti.com/consumer-apps
DLP® Products
www.dlp.com
Energy and Lighting
www.ti.com/energy
DSP
dsp.ti.com
Industrial
www.ti.com/industrial
Clocks and Timers
www.ti.com/clocks
Medical
www.ti.com/medical
Interface
interface.ti.com
Security
www.ti.com/security
Logic
logic.ti.com
Space, Avionics and Defense
www.ti.com/space-avionics-defense
Power Mgmt
power.ti.com
Transportation and
Automotive
www.ti.com/automotive
Microcontrollers
microcontroller.ti.com
Video and Imaging
www.ti.com/video
RFID
www.ti-rfid.com
Wireless
www.ti.com/wireless-apps
RF/IF and ZigBee® Solutions
www.ti.com/lprf
TI E2E Community Home Page
e2e.ti.com
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2011, Texas Instruments Incorporated