TI TPS78223DDCT

TPS782xx
www.ti.com
SBVS115B – AUGUST 2008 – REVISED MAY 2010
500nA, IQ 150mA, Ultra-Low Quiescent Current
Low-Dropout Linear Regulator
FEATURES
DESCRIPTION
•
•
•
•
•
•
The TPS782 family of low-dropout regulators (LDOs)
offers the benefits of ultra-low power (IQ = 1mA), and
miniaturized packaging (2×2 SON).
1
2
•
•
•
•
Low IQ: 500nA
150mA, Low-Dropout Regulator
Low-Dropout at +25°C, 130mV at 150mA
Low-Dropout at +85°C, 175mV at 150mA
3% Accuracy Over Load/Line/Temperature
Available in Fixed Voltage Options (2.5V, 2.7V,
and 2.8V) Using Innovative Factory EEPROM
Programming
Stable with a 1.0mF Ceramic Capacitor
Thermal Shutdown and Overcurrent Protection
CMOS Logic Level-Compatible Enable Pin
Available in DDC (TSOT23-5) or DRV (2mm x
2mm SON-6) Packages
APPLICATIONS
•
•
•
TI MSP430 Attach Applications
Power Rails with Programming Mode
Wireless Handsets, Smartphones, PDAs, MP3
Players, and Other Battery-Operated Handheld
Products
TPS782xxDDC
TSOT23-5
(TOP VIEW)
5
This LDO is designed specifically for battery-powered
applications where ultra-low quiescent current is a
critical parameter. The TPS782, with ultra-low IQ
(1mA), is ideal for microprocessors, memory cards,
and smoke detectors.
The ultra-low power and miniaturized packaging allow
designers to customize power consumption for
specific applications. Consult with your local factory
representative for exact voltage options and ordering
information; minimum order quantities may apply.
The TPS782 family is designed to be compatible with
the TI MSP430 and other similar products. The
enable pin (EN) is compatible with standard CMOS
logic. This LDO is stable with any output capacitor
greater than 1.0mF. Therefore, this device requires
minimal board space because of miniaturized
packaging and a potentially small output capacitor.
The TPS782 series also features thermal shutdown
and current limit to protect the device during fault
conditions. All packages have an operating
temperature range of TJ = –40°C to +125°C. For
high-performance applications that require a
dual-level voltage option, consider the TPS780
series, with an IQ of 500nA and dynamic voltage
scaling.
TPS782xxDRV
2mm x 2mm SON-6
(TOP VIEW)
IN
1
OUT
1
GND
2
N/C
2
3
GND
3
EN
4
OUT
GND
Thermal
Pad
6
IN
5
GND
4
EN
1
2
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.
All 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.
Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
SBVS115B – AUGUST 2008 – REVISED MAY 2010
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)
PRODUCT
VOUT
TPS782xx yyy z
(1)
(2)
(2)
XX is the nominal output voltage
YYY is the package designator.
Z is the tape and reel quantity (R = 3000, T = 250).
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.
Additional output voltage combinations are available on a quick-turn basis using innovative, factory EEPROM programming.
Minimum-order quantities apply; contact your sales representative for details and availability
ABSOLUTE MAXIMUM RATINGS (1)
At TJ = –40°C to +125°C, unless otherwise noted. All voltages are with respect to GND.
PARAMETER
TPS782xx
UNIT
–0.3 to +6.0
V
Enable
–0.3 to VIN + 0.3V
V
Output voltage range, VOUT
–0.3 to VIN + 0.3V
V
Input voltage range, VIN
Maximum output current, IOUT
Internally limited
Output short-circuit duration
Indefinite
Total continuous power dissipation, PDISS
ESD rating
See the Dissipation Ratings table
Human body model (HBM)
2
kV
500
V
Operating junction temperature range, TJ
–40 to +125
°C
Storage temperature range, TSTG
–55 to +150
°C
(1)
Charged device model (CDM)
Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not implied.
DISSIPATION RATINGS
BOARD
DERATING FACTOR
ABOVE TA = +25°C
TA < +25°C
TA = +70°C
TA = +85°C
20°C/W
65°C/W
15.4mW/°C
1540mW
845mW
615mW
90°C/W
200°C/W
5.0mW/°C
500mW
275mW
200mW
RqJC
(1)
DRV
High-K (1)
DDC
High-K
(1)
2
RqJA
PACKAGE
The JEDEC high-K (2s2p) board used to derive this data was a 3-inch × 3-inch, multilayer board with 1-ounce internal power and
ground planes and 2-ounce copper traces on top and bottom of the board.
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Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
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SBVS115B – AUGUST 2008 – REVISED MAY 2010
ELECTRICAL CHARACTERISTICS
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(NOM) + 0.5V or 2.2V, whichever is greater;
IOUT = 100mA, VEN = VIN, COUT = 1.0mF, fixed VOUT test conditions, unless otherwise noted. Typical values at TJ = +25°C.
TPS782xx
PARAMETER
VIN
TEST CONDITIONS
Input voltage range
ΔVOUT/ΔVIN
DC output accuracy
Line regulation
(1)
Operating junction temperature
VIN = 4.3V,
VOUT = 3.3V,
IOUT = 150mA
250
mV
mVRMS
230
400
mA
0.42
1.3
mA
8
VEN = 5.5V
TJ
150
IOUT = 150mA
EN pin current
Thermal shutdown temperature
%
IOUT = 0mA
Shutdown current (IGND)
TSD
+3.0
86
VEN ≤ 0.4V, 2.2V ≤ VIN < 5.5V,
TJ = –40°C to +100°C
Shutdown time (3)
±2.0
130
Ground pin current
tSHDN
–3.0
VIN = 95% VOUT(NOM), IOUT = 150mA
IGND
Startup time
%
%
VOUT = 0.90 × VOUT(NOM)
tSTR
+2
%
Output current limit
(2)
±1
±2.0
ICL
Power-supply rejection ratio
V
–2
±1.0
Output noise voltage
PSRR
UNIT
5.5
0mA ≤ IOUT ≤ 150mA
VN
IEN
MAX
VOUT(NOM) + 0.5V ≤ VIN ≤ 5.5V, IOUT = 5mA
BW = 100Hz to 100kHz, VIN = 2.2V,
VOUT = 1.2V, IOUT = 1mA
ISHDN
(1)
(2)
(3)
(4)
Dropout voltage
TJ = +25°C
Over VIN, IOUT, VOUT + 0.5V ≤ VIN ≤ 5.5V,
temperature
0mA ≤ IOUT ≤ 150mA
ΔVOUT/ΔIOUT Load regulation
VDO
TYP
2.2
Nominal
VOUT
MIN
18
mA
130
nA
40
nA
f = 10Hz
40
dB
f = 100Hz
20
dB
f = 1kHz
15
dB
500
ms
500 (4)
ms
+160
°C
COUT = 1.0mF, VOUT = 10% VOUT(NOM) to
VOUT = 90% VOUT(NOM)
IOUT = 150mA, COUT = 1.0mF, VOUT = 2.8V,
VOUT = 90% VOUT(NOM) to VOUT = 10%
VOUT(NOM)
Shutdown, temperature increasing
Reset, temperature decreasing
+140
–40
°C
+125
°C
VDO is not measured for devices with VOUT(NOM) ≤ 2.3V because minimum VIN = 2.2V.
Time from VEN = 1.2V to VOUT = 90% (VOUT(NOM)).
Time from VEN = 0.4V to VOUT = 10% (VOUT(NOM)).
See Shutdown in the Application Information section for more details.
Copyright © 2008–2010, Texas Instruments Incorporated
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SBVS115B – AUGUST 2008 – REVISED MAY 2010
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FUNCTIONAL BLOCK DIAGRAM
IN
OUT
Current
Limit
Mux
Thermal
Shutdown
EEPROM
Bandgap
EN
Active
PullDown
10kW
Logic
GND
PIN CONFIGURATIONS
DDC PACKAGE
TSOT23-5
(TOP VIEW)
IN
GND
(1)
EN
1
5
DRV PACKAGE
2mm x 2mm SON-6
(TOP VIEW)
OUT
2
3
4
GND
(1)
OUT
1
N/C
2
GND
(1)
All ground pins must be connected to ground for proper operation.
(2)
It is recommended that the thermal pad be grounded.
(1)
Thermal
Pad
3
(2)
6
IN
5
GND
4
EN
(1)
Table 1. PIN DESCRIPTIONS
PIN
4
NAME
DRV
DDC
OUT
1
5
Regulated output voltage pin. A small (1mF) ceramic capacitor is needed from this pin to
ground to assure stability. See the Input and Output Capacitor Requirements in the
Application Information section for more details.
N/C
2
—
Not connected.
EN
4
3
Driving the enable pin (EN) over 1.2V turns ON the regulator. Driving this pin below 0.4V
puts the regulator into shutdown mode, reducing operating current to 18nA typical.
GND
3, 5
2, 4
IN
6
1
Input pin. A small capacitor is needed from this pin to ground to assure stability. Typical input
capacitor = 1.0mF. Both input and output capacitor grounds should be tied back to the IC
ground with no significant impedance between them.
Thermal pad
Thermal pad
—
It is recommended that the thermal pad on the SON-6 package be connected to ground.
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DESCRIPTION
ALL ground pins must be tied to ground for proper operation.
Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
www.ti.com
SBVS115B – AUGUST 2008 – REVISED MAY 2010
TYPICAL CHARACTERISTICS
Over the operating temperature range of TJ = –40°C to +125°C, VIN = VOUT(TYP) + 0.5V or 2.2V, whichever is greater; IOUT =
100mA, VEN = VIN, COUT = 1mF, and CIN = 1mF, unless otherwise noted.
LINE REGULATION
IOUT = 5mA, VOUT = 2.7V (typ)
TPS78227
LINE REGULATION
IOUT = 150mA, VOUT = 2.7V (typ)
TPS78227
1.0
3
0.8
TJ = -40°C
0.6
0.4
1
0.2
VOUT (%)
VOUT (%)
2
TJ = +25°C
0
-0.2
TJ = +85°C
-0.4
TJ = -40°C
0
-1
-0.6
-2
TJ = +85°C
-0.8
-1.0
-3
3.8
4.0
4.2
4.4
4.6
4.8
VIN (V)
5.0
5.2
5.4
5.6
3.8
4.0
4.2
4.4
4.6
4.8
VIN (V)
5.0
5.2
5.4
Figure 1.
Figure 2.
LOAD REGULATION
VIN = 3.8V, VOUT = 2.7V
TPS78227
DROPOUT VOLTAGE vs OUTPUT CURRENT
VOUT = 2.7V (typ), VIN = 0.95 × VOUT (typ)
TPS78227
3
5.6
250
TJ = +125°C
VDO (VIN - VOUT) (mV)
2
TJ = -40°C
1
VOUT (%)
TJ = +25°C
0
-1
TJ = +25°C
TJ = +85°C
200
TJ = +85°C
150
100
50
-2
TJ = -40°C
TJ = +25°C
0
-3
0
25
50
75
IOUT (mA)
100
Figure 3.
Copyright © 2008–2010, Texas Instruments Incorporated
125
150
0
25
50
75
IOUT (mA)
100
125
150
Figure 4.
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TPS782xx
SBVS115B – AUGUST 2008 – REVISED MAY 2010
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TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of TJ = –40°C to +125°C, VIN = VOUT(TYP) + 0.5V or 2.2V, whichever is
greater; IOUT = 100mA, VEN = VIN, COUT = 1mF, and CIN = 1mF, unless otherwise noted.
DROPOUT VOLTAGE vs JUNCTION TEMPERATURE
VOUT = 2.7V (typ), VIN = 0.95 × VOUT (typ)
TPS78227
GROUND PIN CURRENT vs INPUT VOLTAGE
IOUT = 0mA, VOUT = 3.3V
TPS78233
250
900
100mA
100
TJ = +25°C
500
400
300
50mA
TJ = -40°C
200
100
10mA
0
0
-40 -25 -10
5
20
35 50
TJ (°C)
65
80
95
110 125
3.8
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
VIN (V)
Figure 5.
Figure 6.
GROUND PIN CURRENT vs INPUT VOLTAGE
IOUT = 50mA, VOUT = 2.7V
TPS78227
GROUND PIN CURRENT vs INPUT VOLTAGE
IOUT = 150mA, VOUT = 2.7V
TPS78227
6
3
5
TJ = +85°C
2
TJ = +125°C
1
VOUT (%)
4
IGND (mA)
TJ = +85°C
600
150
50
3
2
TJ = -40°C
0
-1
TJ = +25°C
TJ = -40°C
1
-2
0
TJ = +85°C
TJ = +25°C
-3
3.8
4.0
4.2
4.4
4.6
4.8
VIN (V)
Figure 7.
6
TJ = +125°C
700
150mA
IGND (nA)
VDO (VIN - VOUT) (mV)
800
200
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5.0
5.2
5.4
5.6
3.8
4.0
4.2
4.4
4.6
4.8
VIN (V)
5.0
5.2
5.4
5.6
Figure 8.
Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
www.ti.com
SBVS115B – AUGUST 2008 – REVISED MAY 2010
TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of TJ = –40°C to +125°C, VIN = VOUT(TYP) + 0.5V or 2.2V, whichever is
greater; IOUT = 100mA, VEN = VIN, COUT = 1mF, and CIN = 1mF, unless otherwise noted.
CURRENT LIMIT vs INPUT VOLTAGE
VOUT = 95% VOUT (typ), VOUT = 2.7V (typ)
TPS78227
ENABLE PIN CURRENT vs INPUT VOLTAGE
IOUT = 100mA, VOUT = 2.7V
TPS78227
300
2.0
290
1.8
1.6
270
1.4
TJ = -40°C
260
250
IEN (nA)
Current Limit (mA)
280
TJ = +25°C
240
TJ = +85°C
230
220
TJ = +25°C
1.0
TJ = +85°C
0.8
0.6
0.4
TJ = +125°C
210
TJ = -40°C
1.2
0.2
200
0
3.8
4.0
4.2
4.4
4.6
4.8
VIN (V)
5.0
5.2
5.4
5.6
3.8
4.0
4.2
4.4
4.6
4.8
VIN (V)
5.0
5.2
5.4
Figure 9.
Figure 10.
ENABLE PIN HYSTERESIS vs JUNCTION TEMPERATURE
IOUT = 1mA, TPS78227
%ΔVOUT vs JUNCTION TEMPERATURE
VIN = 3.3V, VOUT = 2.7V (typ)
TPS78227
1.2
5.6
1
1.1
0.1mA
0.9
VEN On
%DVOUT (V)
VEN (V)
1.0
0.8
0.7
0
5mA
-1
VEN Off
150mA
0.6
0.5
0.4
-2
-40 -25 -10
5
20
35 50
TJ (°C)
65
80
Figure 11.
Copyright © 2008–2010, Texas Instruments Incorporated
95
110 125
-40 -25 -10
5
20
35 50
TJ (°C)
65
80
95
110 125
Figure 12.
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SBVS115B – AUGUST 2008 – REVISED MAY 2010
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TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of TJ = –40°C to +125°C, VIN = VOUT(TYP) + 0.5V or 2.2V, whichever is
greater; IOUT = 100mA, VEN = VIN, COUT = 1mF, and CIN = 1mF, unless otherwise noted.
%ΔVOUT vs JUNCTION TEMPERATURE
VIN = 3.7V, VOUT = 2.7V (typ)
TPS78227
OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY
CIN = 1mF, COUT = 2.2mF, VIN = 3.2V
TPS78227
Output Spectral Noise Density (mV/ÖHz)
3
%DVOUT (V)
2
1
0.1mA
0
5mA
-1
150mA
-2
-3
-40 -25 -10
5
20
35 50
TJ (°C)
65
80
95
100
10
150mA
109mVRMS
1
0.1
50mA
109mVRMS
0.01
1mA
108mVRMS
0.001
110 125
10
100
10k
100k
Figure 13.
Figure 14.
RIPPLE REJECTION vs FREQUENCY
VIN = 4.2V, VOUT = 2.7V, COUT = 2.2mF
TPS78227
INPUT VOLTAGE RAMP vs OUTPUT VOLTAGE
TPS78233
80
VIN
60
50
40
50mA
Enable
VOUT
Load Current
30
0V
20
VIN = 0.0V to 5.0V
VOUT = 3.3V
IOUT = 150mA
COUT = 10mF
Current (50mA/div)
Voltage (1V/div)
1mA
70
PSRR (dB)
1k
Frequency (Hz)
150mA
10
0
10
100
1k
10k
100k
Frequency (Hz)
Figure 15.
8
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1M
10M
Time (20ms/div)
Figure 16.
Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
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SBVS115B – AUGUST 2008 – REVISED MAY 2010
TYPICAL CHARACTERISTICS (continued)
Over the operating temperature range of TJ = –40°C to +125°C, VIN = VOUT(TYP) + 0.5V or 2.2V, whichever is
greater; IOUT = 100mA, VEN = VIN, COUT = 1mF, and CIN = 1mF, unless otherwise noted.
OUTPUT VOLTAGE vs ENABLE (SLOW RAMP)
TPS78233
Load Current
VIN = 5.5V
VOUT = 3.3V
IOUT = 150mA
COUT = 10mF
0A
0V
0V
VIN
Load Current
Time (1ms/div)
Figure 17.
Figure 18.
LOAD TRANSIENT RESPONSE
TPS78233
ENABLE PIN vs OUTPUT VOLTAGE RESPONSE
AND OUTPUT CURRENT
TPS78233
Enable
VOUT
Load
Current
Current
(10mA/div)
VIN = 5.5V
VOUT = 3.3V
IOUT = 0mA to 10mA
COUT = 10mF
Voltage (1V/div)
Enable
VOUT
VIN
Load Current
VIN = 5.50V
VOUT = 3.3V
IOUT = 150mA
COUT = 10mF
0V
0A
Time (5ms/div)
Current (50mA/div)
Voltage
(100mV/div)
Time (20ms/div)
VIN
VIN = 0.0V to 5.5V
VOUT = 2.2V
IOUT = 100mA
COUT = 10mF
VOUT
Current (50mA/div)
VOUT
Voltage (1V/div)
Enable
Current (50mA/div)
Voltage (1V/div)
VIN
INPUT VOLTAGE vs DELAY TO OUTPUT
TPS78222
Time (1ms/div)
Figure 19.
Figure 20.
VIN
Enable
VOUT
Load
Current
0V
VIN = 5.5V
VOUT = 3.3V
IOUT = 150mA
COUT = 10mF
Current (50mA/div)
Voltage (1V/div)
ENABLE PIN vs OUTPUT VOLTAGE DELAY
TPS78233
Time (1ms/div)
Figure 21.
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APPLICATION INFORMATION
APPLICATION EXAMPLES
The TPS782 family of LDOs is factory-programmable
to have a fixed output. Note that during startup or
steady-state conditions, it is important that the EN pin
voltage never exceed VIN + 0.3V.
4.2V to 5.5V
VIN
2.7V
IN
VOUT
OUT
1 mF
1mF
TPS78227
On
Off
EN
GND
Figure 22. Typical Application Circuit
The TPS782 series are designed to be stable with
standard ceramic capacitors with values of 1.0mF or
larger at the output. X5R- and X7R-type capacitors
are best because they have minimal variation in value
and ESR over temperature. Maximum ESR should be
less than 1.0Ω. With tolerance and dc bias effects,
the minimum capacitance to ensure stability is 1mF.
BOARD LAYOUT RECOMMENDATIONS TO
IMPROVE PSRR AND NOISE PERFORMANCE
To improve ac performance (such as PSRR, output
noise, and transient response), it is recommended
that the printed circuit board (PCB) be designed with
separate ground planes for VIN and VOUT, with each
ground plane connected only at the GND pin of the
device. In addition, the ground connection for the
output capacitor should connect directly to the GND
pin of the device. High ESR capacitors may degrade
PSRR.
INTERNAL CURRENT LIMIT
INPUT AND OUTPUT CAPACITOR
REQUIREMENTS
Although an input capacitor is not required for
stability, it is good analog design practice to connect
a 0.1mF to 1.0mF low equivalent series resistance
(ESR) capacitor across the input supply near 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 near the power source. If source impedance
is not sufficiently low, a 0.1mF input capacitor may be
necessary to ensure stability.
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The TPS782 is internally current-limited to protect the
regulator during fault conditions. During current limit,
the output sources a fixed amount of current that is
largely independent of output voltage. For reliable
operation, the device should not be operated in a
current limit state for extended periods of time.
The PMOS pass element in the TPS782 series 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
rated output current may be appropriate.
Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
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SBVS115B – AUGUST 2008 – REVISED MAY 2010
SHUTDOWN
DROPOUT VOLTAGE
The enable pin (EN) is active high and is compatible
with standard and low-voltage CMOS levels. When
shutdown capability is not required, EN should be
connected to the IN pin, as shown in Figure 23. The
TPS782 series, with internal active output pull-down
circuitry, discharges the output to within 5% VOUT with
a time (t) shown in Equation 1:
The TPS782 series use a PMOS pass transistor to
achieve low dropout. When (VIN – VOUT) is less than
the dropout voltage (VDO), the PMOS pass device is
the linear region of operation and the input-to-output
resistance is the RDS(ON) of the PMOS pass element.
VDO approximately scales with output current
because the PMOS device behaves like 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 the
Typical Characteristics section. Refer to application
report SLVA207, Understanding LDO Dropout,
available for download from www.ti.com.
t=3
10kW ´ RL
´ COUT
10kW + RL
(1)
Where:
RL= output load resistance
COUT = output capacitance
4.2V to 5.5V
VIN
TRANSIENT RESPONSE
2.7V
IN
VOUT
OUT
1 mF
1mF
TPS78227
As with any regulator, increasing the size of the
output capacitor reduces over/undershoot magnitude
but increases duration of the transient response. For
more information, see Figure 19.
ACTIVE VOUT PULL-DOWN
EN
GND
Figure 23. Circuit Showing EN Tied High when
Shutdown Capability is Not Required
Copyright © 2008–2010, Texas Instruments Incorporated
In the TPS782 series, the active pull-down discharges
VOUT when the device is off. However, the input
voltage must be greater than 2.2V for the active
pull-down to work.
MINIMUM LOAD
The TPS782 series are stable with no output load.
Traditional PMOS LDO regulators suffer from lower
loop gain at very light output loads. The TPS782
employs an innovative, low-current circuit under very
light or no-load conditions, resulting in improved
output voltage regulation performance down to zero
output current. See Figure 19 for the load transient
response.
Submit Documentation Feedback
11
TPS782xx
SBVS115B – AUGUST 2008 – REVISED MAY 2010
www.ti.com
THERMAL INFORMATION
THERMAL PROTECTION
Thermal protection disables the device output when
the junction temperature rises to approximately
+160°C, allowing the device to cool. Once the
junction temperature cools to approximately +140°C,
the output circuitry is enabled. Depending on power
dissipation, thermal resistance, and ambient
temperature, the thermal protection circuit may cycle
on and off again. 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. For good
reliability, thermal protection should trigger at least
+35°C above the maximum expected ambient
condition of your particular application. This
configuration produces a worst-case junction
temperature of +125°C at the highest expected
ambient temperature and worst-case load.
The internal protection circuitry of the TPS782 series
has been designed to protect against overload
conditions. However, it is not intended to replace
proper heatsinking. Continuously running the TPS782
series 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 PCB layout. The PCB area
around the device that is free of other components
moves the heat from the device to the ambient air.
Performance data for JEDEC low- and high-K boards
are given in the Dissipation Ratings table. Using
heavier copper increases the effectiveness in
removing heat from the device. The addition of plated
through-holes to heat-dissipating layers also
improves the heatsink effectiveness. Power
dissipation depends on input voltage and load
conditions. Power dissipation (PD) is equal to the
product of the output current times the voltage drop
across the output pass element (VIN to VOUT), as
shown in Equation 2:
PD = (VIN - VOUT) ´ IOUT
(2)
PACKAGE MOUNTING
Solder pad footprint recommendations for the
TPS782 series are available from the Texas
Instruments web site at www.ti.com through the
TPS782 series product folders.
12
Submit Documentation Feedback
Copyright © 2008–2010, Texas Instruments Incorporated
TPS782xx
www.ti.com
SBVS115B – AUGUST 2008 – REVISED MAY 2010
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (September, 2008) to Revision B
Page
•
Updated title of data sheet .................................................................................................................................................... 1
•
Changed first bullet of Features list ...................................................................................................................................... 1
•
Changed ground pin current, IOUT = 0mA typical specification from 1.0mA to 0.42mA .......................................................... 3
•
Added Figure 6 ..................................................................................................................................................................... 6
Copyright © 2008–2010, Texas Instruments Incorporated
Submit Documentation Feedback
13
PACKAGE OPTION ADDENDUM
www.ti.com
23-Mar-2012
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
TPS78218DRVR
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78218DRVT
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78222DRVR
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78222DRVT
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78223DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78223DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78225DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78225DDCRG4
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78225DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78225DDCTG4
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78225DRVR
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78225DRVRG4
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78225DRVT
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78225DRVTG4
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78227DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78227DDCRG4
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78227DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
Addendum-Page 1
Samples
(Requires Login)
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
23-Mar-2012
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
TPS78227DDCTG4
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78227DRVR
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78227DRVRG4
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78227DRVT
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78227DRVTG4
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78228DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78228DDCRG4
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78228DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78228DDCTG4
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78228DRVR
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78228DRVRG4
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78228DRVT
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78228DRVTG4
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78230DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78230DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78230DRVR
ACTIVE
SON
DRV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78230DRVT
ACTIVE
SON
DRV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78233DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
Addendum-Page 2
Samples
(Requires Login)
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
23-Mar-2012
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
TPS78233DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-1-260C-UNLIM
TPS78236DDCR
ACTIVE
SOT
DDC
5
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
TPS78236DDCT
ACTIVE
SOT
DDC
5
250
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
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
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.
OTHER QUALIFIED VERSIONS OF TPS78225, TPS78227, TPS78228, TPS78230 :
• Automotive: TPS78225-Q1, TPS78227-Q1, TPS78228-Q1, TPS78230-Q1
NOTE: Qualified Version Definitions:
Addendum-Page 3
PACKAGE OPTION ADDENDUM
www.ti.com
23-Mar-2012
• Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
Addendum-Page 4
PACKAGE MATERIALS INFORMATION
www.ti.com
22-Mar-2012
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
TPS78218DRVR
SON
DRV
6
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
3000
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78218DRVT
SON
DRV
6
250
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78222DRVR
SON
DRV
6
3000
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78222DRVT
SON
DRV
6
250
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78223DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78223DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78225DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78225DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78225DRVR
SON
DRV
6
3000
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78225DRVT
SON
DRV
6
250
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78227DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78227DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78227DRVR
SON
DRV
6
3000
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78227DRVT
SON
DRV
6
250
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78228DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78228DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78228DRVR
SON
DRV
6
3000
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78228DRVT
SON
DRV
6
250
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
22-Mar-2012
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
TPS78230DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78230DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78230DRVR
SON
DRV
6
3000
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78230DRVT
SON
DRV
6
250
179.0
8.4
2.2
2.2
1.2
4.0
8.0
Q2
TPS78233DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78233DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78236DDCR
SOT
DDC
5
3000
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
TPS78236DDCT
SOT
DDC
5
250
179.0
8.4
3.2
3.2
1.4
4.0
8.0
Q3
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TPS78218DRVR
SON
DRV
6
3000
203.0
203.0
35.0
TPS78218DRVT
SON
DRV
6
250
203.0
203.0
35.0
TPS78222DRVR
SON
DRV
6
3000
203.0
203.0
35.0
TPS78222DRVT
SON
DRV
6
250
203.0
203.0
35.0
TPS78223DDCR
SOT
DDC
5
3000
195.0
200.0
45.0
TPS78223DDCT
SOT
DDC
5
250
195.0
200.0
45.0
TPS78225DDCR
SOT
DDC
5
3000
195.0
200.0
45.0
TPS78225DDCT
SOT
DDC
5
250
195.0
200.0
45.0
TPS78225DRVR
SON
DRV
6
3000
203.0
203.0
35.0
Pack Materials-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
22-Mar-2012
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TPS78225DRVT
SON
DRV
6
250
203.0
203.0
35.0
TPS78227DDCR
SOT
DDC
5
3000
195.0
200.0
45.0
TPS78227DDCT
SOT
DDC
5
250
195.0
200.0
45.0
TPS78227DRVR
SON
DRV
6
3000
203.0
203.0
35.0
TPS78227DRVT
SON
DRV
6
250
203.0
203.0
35.0
TPS78228DDCR
SOT
DDC
5
3000
195.0
200.0
45.0
TPS78228DDCT
SOT
DDC
5
250
195.0
200.0
45.0
TPS78228DRVR
SON
DRV
6
3000
203.0
203.0
35.0
TPS78228DRVT
SON
DRV
6
250
203.0
203.0
35.0
TPS78230DDCR
SOT
DDC
5
3000
195.0
200.0
45.0
TPS78230DDCT
SOT
DDC
5
250
195.0
200.0
45.0
TPS78230DRVR
SON
DRV
6
3000
203.0
203.0
35.0
TPS78230DRVT
SON
DRV
6
250
203.0
203.0
35.0
TPS78233DDCR
SOT
DDC
5
3000
203.0
203.0
35.0
TPS78233DDCT
SOT
DDC
5
250
203.0
203.0
35.0
TPS78236DDCR
SOT
DDC
5
3000
195.0
200.0
45.0
TPS78236DDCT
SOT
DDC
5
250
195.0
200.0
45.0
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
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
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TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
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