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FEATURES DESCRIPTION
APPLICATIONS
TPS799xxDDC
TSOT23-5
(TOP VIEW)
OUT
NR
IN
GND
EN
1
2
3
5
4
TPS799xxYZU
WCSP
(TOP VIEW)
OUT
EN
IN
GND
NR
GND
TPS79901YZU
WCSP
(TOP VIEW)
OUT
EN
IN
FB
TPS79901DDC
TSOT23-5
(TOP VIEW)
OUT
FB
IN
GND
EN
1
为爱痴狂 金志文2
3
5
4
TPS799xxDRV
2mm x 2mm SON-6
(TOP VIEW)
IN
N/C
EN
6
5
4
OUT
NR
GND
1
2
3
GND
TPS79901DRV
2mm x 2mm SON-6
(TOP VIEW)
IN
N/C
EN
6
5
4
OUT
FB
GND
1
2
3
GND
TPS799xx
SBVS056H–JANUARY2005–REVISED MAY2007 200mA,Low Quiescent Current,Ultra-Low Noise,High PSRR
Low Dropout Linear Regulator
•200mA Low Dropout Regulator with EN The TPS799xx family of low-dropout(LDO)
low-power linear regulators offer excellent AC •Low I Q:40µA
performance with very low ground current.High •Multiple Output Voltage Versions Available:
power-supply rejection ratio(PSRR),low noise,fast –Fixed Outputs of1.2V to4.5V Using start-up,and excellent line and load transient Innovative Factory EEPROM Programming response are provided while consuming a very low
40µA(typical)ground current.The TPS799xx is –Adjustable Outputs from1.20V to6.5V
stable with ceramic capacitors and uses an •High PSRR:66dB at1kHz
advanced BiCMOS fabrication process to yield •Ultra-low Noise:29.5µV RMS dropout voltage typically100mV at200mA output.
The TPS799xx uses a precision voltage reference •Fast Start-Up Time:45µs
and feedback loop to achieve overall accuracy of2%•Stable with a Low-ESR,2.0µF Typical Output
over all load,line,process,and temperature Capacitance
variations.It is fully specified from T J=–40°C to •Excellent Load/Line Transient Response+125°C and is offered in low profile ThinSOT23,
Wafer Chip-Scale(WCSP),and2mm×2mm SON •2%Overall Accuracy(Load/Line/Temp)
packages,ideal for wireless handsets and WLAN •Very Low Dropout:100mV
cards.
•ThinSOT-23,WCSP,and2mm×2mm SON-6
Packages
•Cellular Phones
•Wireless LAN,Bluetooth®
•VCOs,RF
•Handheld Organizers,PDAs
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,Inc.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.Copyright©2005–2007,Texas Instruments Incorporated Products conform to specifications per the terms of the Texas
Instruments standard warranty.Production processing does not
necessarily include testing of all parameters.
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ABSOLUTE MAXIMUM RATINGS
DISSIPATION RATINGS
TPS799xx
SBVS056H–JANUARY 2005–REVISED MAY 2007
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 V OUT (2)
TPS799xx yyyz
XX is nominal output voltage (for example,28=2.8V,285=2.85V,01=Adjustable).(3)YYY is package designator.Z is package quantity.
(1)For the most current package and ordering information see the Package Option Addendum at the end of this document,or see the TI website at www.ti .
(2)Output voltages from 1.2V to 4.5V in 50mV increments are available through the use of innovative factory EEPROM programming;minimum order quantities may apply.Contact factory for details and availability.(3)For fixed 1.2V operation,tie FB to OUT.
Over operating temperature range (unless otherwise noted)(1)
PARAMETER TPS799xx UNIT V IN range –0.3to +7.0V V EN range –0.3to V IN +0.3V V OUT range –0.3to V IN +0.3V
Peak output current
Internally limited
Continuous total power dissipation See Dissipation Ratings Table Junction temperature range,T J
–55to +150°C Storage junction temperature range ,T STG –55to +150
°C ESD rating,HBM 2kV ESD rating,CDM 500
V (1)
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.
DERATING FACTOR BOARD PACKAGE R θJC R θJA ABOVE T A =25°C
T A <25°C T A =70°C T A =85°C Low-K (1)DDC 90°C/W 280°C/W    3.6mW/°C 360mW 200mW 145mW High-K (2)DDC 90°C/W 200°C/W    5.0mW/°C 500mW 275mW 200mW Low-K (1)YZU 27°C/W 255°C/W    3.9mW/°C 390mW 215mW 155mW High-K (2)YZU 27°C/W 190°C/W    5.3mW/°C 530mW 295mW 215mW Low-K (1)DRV 20°C/W 140°C/W 7.1mW/°C 715mW 395mW 285mW High-K (2)DRV
20°C/W
65°C/W
15.4mW/°C
1540mW
845mW
615mW
(1)The JEDEC low-K (1s)board used to derive this data was a 3in ×3in,two-layer board with 2-ounce copper traces on top of the board.(2)
The JEDEC high-K (2s2p)board used to derive this data was a 3in ×3in,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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ELECTRICAL CHARACTERISTICS
TPS799xx SBVS056H–JANUARY2005–REVISED MAY2007
Over operating temperature range(T遇上你是我的缘曲谱
J =–40°C to+125°C),V
IN
=V
OUT(TYP)
+0.3V or2.7V,whichever is greater;I
OUT
=1mA,
V EN =V
IN
,C
OUT
=2.2µF,C
NR
=0.01µF,unless otherwise noted.For TPS79901,V
OUT
=3.0V.
Typical values are at T
J
=+25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V IN Input voltage range(1)  2.7  6.5V V FB Internal reference(TPS79901)  1.169  1.193  1.217V V OUT Output voltage range(TPS79901)V FB  6.5–V DO V V OUT Output accuracy Nominal T J=+25°C–1.0+1.0%
Over V IN,V OUT+0.3V≤V IN≤6.5V
V OUT Output accuracy(1)–2.0±1.0+2.0%
I OUT,Temp500µA≤I OUT≤200mA
∆V OUT%/∆V IN Line regulation(1)V OUT(NOM)+0.3V≤V IN≤6.5V0.02%/V ∆V OUT%/∆I OUT Load regulation500µA≤I OUT≤200mA0.002%/mA
Dropout voltage(2)
V DO V OUT<3.3V I OUT=200mA100175mV (V IN=V OUT(NOM)–0.1V)
Dropout voltage
V DO V OUT≥3.3V I OUT=200mA90160mV (V IN=V OUT(NOM)–0.1V)
I CL Output current limit V OUT=0.9×V OUT(NOM)200400600mA
I GND Ground pin current500µA≤I OUT≤200mA4060µA
I SHDN Shutdown current(I GND)V EN≤0.4V,2.7V≤V IN≤6.5V0.15  1.0µA
I FB Feedback pin current(TPS79901)–0.50.5µA
f=100Hz70dB
Power-supply rejection ratio f=1kHz66dB PSRR V IN=3.85V,V OUT=2.85V,
f=10kHz51dB
C NR=0.01µF,I OUT=100mA
f=100kHz38dB
C NR=0.01µF10.5x V OUTµV RMS
Output noise voltage
V N
BW=10Hz to100kHz,V OUT=2.8V C
NR
=none94x V OUTµV RMS
C NR=0.001µF45µs
Startup time C
NR =0.047µF45µs
T STR V OUT=2.85V,
C NR=0.01µF50µs
R L=14Ω,C OUT=2.2µF
C NR=none50µs
V EN(HI)Enable high(enabled)  1.2V IN V V EN(LO)Enable low(shutdown)00.4V
I EN(HI)Enable pin current,enabled V EN=V IN=6.5V0.03  1.0µA
寂寞沙洲冷歌词Shutdown,temperature165°C
increasing
TSD Thermal shutdown temperature
Reset,temperature decreasing145°C T J Operating junction temperature–40+125°C
Under-voltage lock-out V IN rising  1.90  2.20  2.65V UVLO
Hysteresis V IN falling70mV
(1)Minimum V IN=V OUT+V DO or2.7V,whichever is greater.
(2)V DO is not measured for devices with V OUT(NOM)<2.8V because minimum V IN=2.7V.
3
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DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAMS
PIN CONFIGURATIONS
TPS799xxDDC TSOT23-5(TOP VIEW)
OUT NR IN GND EN
123
54TPS799xxYZU
WCSP (TOP VIEW)OUT
EN
IN
GND
NR
GND
TPS79901YZU
WCSP (TOP VIEW)OUT
EN
IN
FB
TPS79901DDC TSOT23-5(TOP VIEW)
OUT FB IN GND
EN 123
54
TPS799xxDRV 2mm x 2mm SON-6
(TOP VIEW)IN N/C EN
654
OUT NR GND
123
GND
TPS79901DRV 2mm x 2mm SON-6
(TOP VIEW)IN N/C EN
654
OUT FB GND
123
GND
TPS799xx
SBVS056H–JANUARY 2005–REVISED MAY 2007
Figure 1.Fixed Voltage Versions Figure 2.Adjustable Voltage Versions
Table 1.PIN DESCRIPTIONS
TPS799xx
NAME DDC YZU DRV DESCRIPTION IN 1C36Input supply.
GND 2B23,Pad Ground.The pad must be tied to GND.
Driving the enable pin (EN)high turns on the regulator.Driving this pin low puts the regulator EN 3A14into shutdown mode.EN can be connected to IN if not used.
Fixed voltage versions only;connecting an external capacitor to this pin bypasses noise NR 4A32generated by the internal bandgap.This capacitor allows output noise to be reduced to very low levels.
Adjustable version only;this pin is the input to the control loop error amplifier,and is used to FB 4A32set the output voltage of the device.
Output of the regulator.A small capacitor (total typical capacitance ≥2.0µF ceramic)is OUT 5C11needed from this pin to ground to assure stability.
N/C
—
—
5
Not internally connected.This pin must either be left open,or tied to GND.
4
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TYPICAL CHARACTERISTICS
2.5
3.5
4.5
5.5
6.5
V IN (V)
1.00.80.60.40.20−0.2−0.4−0.6−0.8−1.0
C h a n g e i n V O U T (%)
7.5
50
100150
200
I OUT (mA)
28.5021.3814.257.130−7.13−14.25−21.38−28.50
C h a n g e i n V O U T (m V
)
200180160
140120100806040200V D O (m V )
50
100150200
I OUT (mA)
poeme
T J  (°
C)
2.01.51.00.50−0.5−1.0−1.5−2.0
C h a n g e i n
V O U T (%)
−40−255
35
65
95
50
125
−15
20
80
1101101009080706050403020100V D O (m V )
2.5
3.0
3.5
4.0
5.0
6.0
7.0
4.5
5.5
6.5V IN (V)
T J  (°C)
200180160140120100806040200
V D O (m V )
5
35
65
95
50
125
20
80
110−40−25−15
TPS799xx
SBVS056H–JANUARY 2005–REVISED MAY 2007
Over operating temperature range (T J =–40°C to +125°C),V IN =V OUT(TYP)+0.3V or 2.7V,whichever is greater;I OUT =1mA,V EN =V IN ,C OUT =2.2µF,C NR =0.01µF,unless otherwise noted.For TPS79901,V OUT =3.0V.Typical values are at T J =+25°C.
LOAD REGULATION
LINE REGULATION
Figure 3.
Figure 4.
OUTPUT VOLTAGE vs TPS799285DROPOUT VOLTAGE vs
JUNCTION TEMPERATURE
OUTPUT CURRENT
Figure 5.
Figure 6.
TPS799285DROPOUT VOLTAGE vs
TPS79901DROPOUT vs
JUNCTION TEMPERATURE
INPUT VOLTAGE
Figure 7.
Figure 8.
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6050
40
302010
0I (A )
G N D m    2.5
3.0
4.5
5.5
6.5
V (V)
IN 7.0
3.5
4.0
5.0
6.0
605040302010
I G N D (µA )
−40−255
35
65
95
50
125
−15
20
80
110T J  (°C)
908070605040302010010
100
1k
10k
Frequency (Hz)
P S R R (d B )
100k
1M
10M
T J  (°C)
600500400300200
100
I G N D (n A )
吴婷个人资料−40−255
35
65
95
50
125
−15
20
80
110TPS799xx
SBVS056H–JANUARY 2005–REVISED MAY 2007
TYPICAL CHARACTERISTICS (continued)
Over operating temperature range (T J =–40°C to +125°C),V IN =V OUT(TYP)+0.3V or 2.7V,whichever is greater;I OUT =1mA,V EN =V IN ,C OUT =2.2µF,C NR =0.01µF,unless otherwise noted.For TPS79901,V OUT =3.0V.Typical values are at T J =+25°C.
GROUND PIN CURRENT vs
TPS799285GROUND PIN CURRENT vs
INPUT VOLTAGE
JUNCTION TEMPERATURE
Figure 9.
Figure 10.
GROUND PIN CURRENT (DISABLED)vs
TPS799285POWER-SUPPLY RIPPLE REJECTION vs
JUNCTION TEMPERATURE
FREQUENCY (V IN –V OUT =1.0V)
Figure 11.Figure 12.
6
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