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TPS799xx
www.ti.com
SBVS056J – JANUARY 2005 – REVISED AUGUST 2010
200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR
Low Dropout Linear Regulator
Check for Samples:
TPS799xx
1
FEATURES
200mA Low Dropout Regulator with EN
Low I
Q
: 40mA
Multiple Output Voltage Versions Available:
– Fixed Outputs of 1.2V to 4.5V Using
Innovative Factory EEPROM Programming
– Adjustable Outputs from 1.20V to 6.5V
High PSRR: 66dB at 1kHz
Ultra-low Noise: 29.5mV
RMS
Fast Start-Up Time: 45ms
Stable with a Low-ESR, 2.0mF Typical Output
Capacitance
Excellent Load/Line Transient Response
2% Overall Accuracy (Load/Line/Temp)
Very Low Dropout: 100mV
ThinSOT-23, WCSP, and 2mm × 2mm SON-6
Packages
DESCRIPTION
The TPS799xx family of low-dropout (LDO)
low-power linear regulators offer excellent AC
performance with very low ground current. High
power-supply rejection ratio (PSRR), low noise, fast
start-up, and excellent line and load transient
response are provided while consuming a very low
40mA (typical) ground current. The TPS799xx is
stable with ceramic capacitors and uses an advanced
BiCMOS fabrication process to yield dropout voltage
typically 100mV at 200mA output. The TPS799xx
uses a precision voltage reference and feedback loop
to achieve overall accuracy of 2% over all load, line,
process, and temperature variations. It is fully
specified from T
J
= –40°C to +125°C and is offered in
low profile ThinSOT23, Wafer Chip-Scale (WCSP),
and 2mm × 2mm SON packages, ideal for wireless
handsets and WLAN cards.
•
•
•
23
•
•
•
•
•
•
•
•
APPLICATIONS
•
•
•
•
Cellular Phones
Wireless LAN, Bluetooth
®
VCOs, RF
Handheld Organizers, PDAs
TPS799xxDDC
TSOT23-5
(TOP VIEW)
TPS79901DDC
TSOT23-5
(TOP VIEW)
TPS799xxYZU
WCSP
(TOP VIEW)
C3
C1
TPS79901YZU
WCSP
(TOP VIEW)
C3
C1
IN
GND
EN
1
2
3
5
OUT
IN
GND
1
2
3
5
OUT
IN
B2
OUT
A3
A1
IN
B2
OUT
A3
A1
GND
4
GND
EN
FB
EN
4
NR
EN
FB
NR
TPS799xxDRV
2mm x 2mm SON-6
(TOP VIEW)
OUT
NR
GND
1
2
3
GND
6
5
4
IN
N/C
EN
TPS79901DRV
2mm x 2mm SON-6
(TOP VIEW)
OUT
FB
GND
1
2
3
GND
6
5
4
IN
N/C
EN
1
2
3
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.
Copyright © 2005–2010, Texas Instruments Incorporated
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.
TPS799xx
SBVS056J – JANUARY 2005 – REVISED AUGUST 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
TPS799xx
yyy z
V
OUT
(2)
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)
(2)
(3)
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.com.
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.
For fixed 1.2V operation, tie FB to OUT.
ABSOLUTE MAXIMUM RATINGS
Over operating temperature range (unless otherwise noted).
(1)
PARAMETER
V
IN
range
V
EN
range
V
OUT
range
Peak output current
Continuous total power dissipation
Junction temperature range, T
J
Storage junction temperature range , T
STG
ESD rating, HBM
ESD rating, CDM
(1)
TPS799xx
–0.3 to +7.0
–0.3 to V
IN
+0.3
–0.3 to V
IN
+0.3
Internally limited
See Dissipation Ratings Table
–55 to +150
–55 to +150
2
500
°C
°C
kV
V
UNIT
V
V
V
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.
THERMAL INFORMATION
THERMAL METRIC
(1) (2)
q
JA
q
JCtop
q
JB
y
JT
y
JB
q
JCbot
(1)
(2)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
TPS799xx
DRV (6 PINS)
74.2
58.8
145.9
0.2
54.4
7.2
°C/W
UNITS
For more information about traditional and new thermal metrics, see the
IC Package Thermal Metrics
application report,
SPRA953.
For thermal estimates of this device based on PCB copper area, see the
TI PCB Thermal Calculator.
2
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Copyright © 2005–2010, Texas Instruments Incorporated
TPS799xx
www.ti.com
SBVS056J – JANUARY 2005 – REVISED AUGUST 2010
ELECTRICAL CHARACTERISTICS
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
= 2.2mF, C
NR
= 0.01mF, unless otherwise noted. For TPS79901, V
OUT
= 3.0V.
Typical values are at T
J
= +25°C.
PARAMETER
V
IN
V
FB
V
OUT
V
OUT
V
OUT
ΔV
OUT
%/
ΔV
IN
ΔV
OUT
%/
ΔI
OUT
V
DO
V
DO
I
CL
I
GND
I
SHDN
I
FB
Input voltage range
(1)
Internal reference (TPS79901)
Output voltage range (TPS79901)
Output accuracy
Output accuracy
(1)
Line regulation
(1)
Load regulation
Dropout voltage
(2)
(V
IN
= V
OUT(NOM)
– 0.1V)
Dropout voltage
(V
IN
= V
OUT(NOM)
– 0.1V)
Output current limit
Ground pin current
Shutdown current (I
GND
)
Feedback pin current (TPS79901)
f = 100Hz
PSRR
Power-supply rejection ratio
V
IN
= 3.85V, V
OUT
= 2.85V,
C
NR
= 0.01mF, I
OUT
= 100mA
Output noise voltage
BW = 10Hz to 100kHz, V
OUT
= 2.8V
Startup time
V
OUT
= 2.85V,
R
L
= 14Ω, C
OUT
= 2.2mF
Enable high (enabled)
Enable low (shutdown)
Enable pin current, enabled
Thermal shutdown temperature
Operating junction temperature
Under-voltage lock-out
Hysteresis
V
IN
rising
V
IN
falling
V
EN
= V
IN
= 6.5V
Shutdown, temperature increasing
Reset, temperature decreasing
–40
1.90
2.20
70
f = 1kHz
f = 10kHz
f = 100kHz
V
N
C
NR
= 0.01mF
C
NR
= none
C
NR
= 0.001mF
T
STR
C
NR
= 0.047mF
C
NR
= 0.01mF
C
NR
= none
V
EN(HI)
V
EN(LO)
I
EN(HI)
TSD
T
J
UVLO
(1)
(2)
1.2
0
0.03
165
145
+125
2.65
Nominal
Over V
IN
,
I
OUT
, Temp
T
J
= +25°C
V
OUT
+ 0.3V
≤
V
IN
≤
6.5V
500mA
≤
I
OUT
≤
200mA
V
OUT(NOM)
+ 0.3V
≤
V
IN
≤
6.5V
500mA
≤
I
OUT
≤
200mA
V
OUT
< 3.3V I
OUT
= 200mA
V
OUT
≥
3.3V I
OUT
= 200mA
V
OUT
= 0.9 × V
OUT(NOM)
500mA
≤
I
OUT
≤
200mA
V
EN
≤
0.4V, 2.7V
≤
V
IN
≤
6.5V
–0.5
70
66
51
38
10.5 x V
OUT
94 x V
OUT
45
45
50
50
V
IN
0.4
1.0
200
TEST CONDITIONS
MIN
2.7
1.169
V
FB
–1.0
–2.0
±1.0
0.02
0.002
100
90
400
40
0.15
175
160
600
60
1.0
0.5
1.193
TYP
MAX
6.5
1.217
6.5 – V
DO
+1.0
+2.0
UNIT
V
V
V
%
%
%/V
%/mA
mV
mV
mA
mA
mA
mA
dB
dB
dB
dB
mV
RMS
mV
RMS
ms
ms
ms
ms
V
V
mA
°C
°C
°C
V
mV
Minimum V
IN
= V
OUT
+ V
DO
or 2.7V, whichever is greater.
V
DO
is not measured for devices with V
OUT(NOM)
< 2.8V because minimum V
IN
= 2.7V.
Copyright © 2005–2010, Texas Instruments Incorporated
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3
TPS799xx
SBVS056J – JANUARY 2005 – REVISED AUGUST 2010
www.ti.com
DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAMS
IN
400Ω
Current
Limit
EN
Thermal
Shutdown
2µA
Current
Limit
Overshoot
Detect
EN
Thermal
Shutdown
3.3MΩ
OUT
IN
400Ω
OUT
Overshoot
Detect
UVLO
Quickstart
1.193V
Bandgap
500k
UVLO
NR
1.193V
Bandgap
500k
FB
GND
GND
Figure 1. Fixed Voltage Versions
Figure 2. Adjustable Voltage Versions
PIN CONFIGURATIONS
TPS799xxDDC
TSOT23-5
(TOP VIEW)
TPS79901DDC
TSOT23-5
(TOP VIEW)
TPS799xxYZU
WCSP
(TOP VIEW)
C3
C1
TPS79901YZU
WCSP
(TOP VIEW)
C3
C1
IN
GND
EN
1
2
3
5
OUT
IN
GND
1
2
3
5
OUT
IN
B2
OUT
A3
A1
IN
B2
OUT
A3
A1
GND
4
GND
EN
FB
EN
4
NR
EN
FB
NR
TPS799xxDRV
2mm x 2mm SON-6
(TOP VIEW)
OUT
NR
GND
1
2
3
GND
6
5
4
IN
N/C
EN
TPS79901DRV
2mm x 2mm SON-6
(TOP VIEW)
OUT
FB
GND
1
2
3
GND
6
5
4
IN
N/C
EN
Table 1. PIN DESCRIPTIONS
TPS799xx
NAME
IN
GND
EN
NR
FB
OUT
N/C
DDC
1
2
3
4
4
5
—
YZU
C3
B2
A1
A3
A3
C1
—
DRV
6
3, Pad
4
2
2
1
5
DESCRIPTION
Input supply.
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
into shutdown mode. EN can be connected to IN if not used.
Fixed voltage versions only; connecting an external capacitor to this pin bypasses noise
generated 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
set the output voltage of the device.
Output of the regulator. A small capacitor (total typical capacitance
≥
2.0mF ceramic) is
needed from this pin to ground to assure stability.
Not internally connected. This pin must either be left open, or tied to GND.
4
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Copyright © 2005–2010, Texas Instruments Incorporated
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