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TMS77701
Technical data
22 pgs318.18 Kb0

TEXAS INSTRUMENTS TMS77701 Technical data

TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
D
D
Open Drain Power Good (TPS778xx)
D
750-mA Low-Dropout Voltage Regulator
D
Available in 1.5-V, 1.8-V, 2.5-V , 3.3-V Fixed Output and Adjustable Versions
D
Dropout Voltage to 260 mV (Typ) at 750 mA (TPS77x33)
D
Ultra Low 85 µA Typical Quiescent Current
D
Fast Transient Response
D
2% Tolerance Over Specified Conditions for Fixed-Output Versions
D
8-Pin SOIC and 20-Pin TSSOP PowerPAD (PWP) Package
D
Thermal Shutdown Protection
description
TPS777xx and TPS778xx are designed to have a fast transient response and be stable with a 10-µF low ESR capacitors. This combination provides high performance at a reasonable cost.
PWP PACKAGE
(TOP VIEW)
NC EN
IN IN
NC
EN
IN IN
1 2 3 4 5 6 7 8 9 10
D PACKAGE
(TOP VIEW)
1 2 3 4
GND/HSINK GND/HSINK
GND
GND/HSINK GND/HSINK
NC – No internal connection
GND
20
GND/HSINK
19
GND/HSINK
18
NC
17
NC
16
RESET
15
FB/NC
14
OUT
13
OUT
12
GND/HSINK
11
GND/HSINK
RESET
8
FB/NC
7
OUT
6 5
OUT
/PG
/PG
TPS77x33
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
3
10
2
10
1
10
0
10
– Dropout Voltage – mV
DO
V
–1
10
CO = 10 µF
–2
10
–40 0 20 120
–60 40 60 80 100
–20 140
TA – Free-Air Temperature – °C
IO = 750 mA
IO = 10 mA
IO = 0
LOAD TRANSIENT RESPONSE
CO = 2x47 µF ESR = 1/2x100 mΩ
50
VO = 3.3 V VI = 4.3 V
0
– Change in∆
O
V
–50
Output Voltage – mV
1000
500
0
O
I – Output Current – mA
0
TPS77x33
604020 80 100 140120 160 180 200
t – Time – µs
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.
PowerPAD is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1999, Texas Instruments Incorporated
1
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
J
40 C to 125 C
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
description (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 260 mV at an output current of 750 mA for the TPS77x33) and is directly proportional to the output current. Additionally , since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 750 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN quiescent current to 1 µA at TJ = 25°C.
The RESET output of the TPS777xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS777xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.
Power good (PG) of the TPS778xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator.
The TPS777xx and TPS778xx are offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5.5 V for TPS77701 option and 1.2 V to 5.5 V for TPS77801 option). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS777xx and TPS778xx families are available in 8 pin SOIC and 20 pin PWP packages.
AVAILABLE OPTIONS
OUTPUT
VOLTAGE
T
–
°
The TPS77x01 is programmable using an external resistor divider (see application information). The D and PWP packages are available taped and reeled. Add an R suffix to the device type (e.g., TPS77701DR).
°
(V)
TYP
3.3 TPS77733PWP TPS77833PWP TPS77733D TPS77833D
2.5 TPS77725PWP TPS77825PWP TPS77725D TPS77825D
1.8 TPS77718PWP TPS77818PWP TPS77718D TPS77818D
1.5 TPS77715PWP TPS77815PWP TPS77715D TPS77815D
Adjustable
1.5 V to 5.5 V Adjustable
1.2 V to 5.5 V
TPS77701PWP — TPS77701D —
TSSOP
(PWP)
— TPS77801PWP — TPS77801D
(enable) shuts down the regulator, reducing the
PACKAGED DEVICES
SOIC
(D)
2
V
I
0.1 µF
†
See application information section for capacitor selection details.
6 7
5
IN
IN
EN
RESET/
GND
3
PG
OUT OUT
16
14 13
+
RESET
C
10 µF
/PG
V
O
†
O
Figure 1. Typical Application Configuration for Fixed Output Options
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
functional block diagram—adjustable version
IN
EN
_
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
PG or RESET
+
V
= 1.1834 V
ref
+ _
GND
200 ms Delay
(for RESET
Option)
functional block diagram—fixed-voltage version
IN
EN
_ +
OUT
R1
FB/NC
R2
External to the device
PG or RESET
OUT
V
= 1.1834 V
ref
+ _
GND
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
200 ms Delay
(for RESET
Option)
R1
R2
3
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
I/O
DESCRIPTION
I/O
DESCRIPTION
I/O
DESCRIPTION
I/O
DESCRIPTION
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
Terminal Functions – SOIC Package (TPS777xx)
TERMINAL
NAME NO.
EN 2 I Enable input FB/NC 7 I Feedback input voltage for adjustable device (no connect for fixed options) GND 1 Regulator ground IN 3, 4 I Input voltage OUT 5, 6 O Regulated output voltage RESET 8 O RESET output
Terminal Functions – TSSOP Package (TPS777xx)
TERMINAL
NAME NO.
EN 5 I Enable input FB/NC 15 I Feedback input voltage for adjustable device (no connect for fixed options) GND 3 Regulator ground GND/HSINK 1, 2, 9, 10, 11,
12, 19, 20 IN 6, 7 I Input NC 4, 8, 17, 18 No connect OUT 13, 14 O Regulated output voltage RESET 16 O RESET output
Ground/heatsink
Terminal Functions – SOIC Package (TPS778xx)
TERMINAL
NAME NO.
EN 2 I Enable input FB/NC 7 I Feedback input voltage for adjustable device (no connect for fixed options) GND 1 Regulator ground IN 3, 4 I Input voltage OUT 5, 6 O Regulated output voltage PG 8 O PG output
Terminal Functions – TSSOP Package (TPS778xx)
TERMINAL
NAME NO.
EN 5 I Enable input FB/NC 15 I Feedback input voltage for adjustable device (no connect for fixed options) GND 3 Regulator ground GND/HSINK 1, 2, 9, 10, 11,
12, 19, 20 IN 6, 7 I Input NC 4, 8, 17, 18 No connect OUT 13, 14 O Regulated output voltage PG 16 O PG output
Ground/heatsink
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
TPS777xx RESET timing diagram
V
I
†
V
res
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
V
res
t
V
O
Threshold
Voltage
RESET Output
Output
Undefined
†
V
is the minimum input voltage for a valid RESET . The symbol V
res
for semiconductor symbology.
‡
VIT –Trip voltage is typically 5% lower than the output voltage (95%VO) V to V
is the hysteresis voltage.
IT+
‡
V
IT+
‡
V
IT–
200 ms Delay
V
IT+
Less than 5% of the output voltage
res
‡
‡
V
IT–
t
200 ms Delay
Output Undefined
t
is not currently listed within EIA or JEDEC standards
IT–
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
D
PWP
#
PWP
||
Output voltage range, V
V
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Input voltage range‡, VI –0.3 V to 13.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at EN –0.3 V to 16.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum RESET
Maximum PG voltage (TPS778xx) 16.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak output current Internally limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage, VO (OUT, FB) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See dissipation rating tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, T Storage temperature range, T
ESD rating, HBM 2 kV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡
All voltage values are with respect to network terminal ground.
PACKAGE
PACKAGE
#
This parameter is measured with the recommended copper heat sink pattern on a 1-layer PCB, 5-in × 5-in PCB, 1 oz. copper, 2-in × 2-in coverage (4 in2).
||
This parameter is measured with the recommended copper heat sink pattern on a 8-layer PCB, 1.5-in × 2-in PCB, 1 oz. copper with layers 1, 2, 4, 5, 7, and 8 at 5% coverage (0.9 in2) and layers 3 and 6 at 100% coverage (6 in2). For more information, refer to TI technical brief SLMA002.
voltage (TPS777xx) 16.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–40°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURES
AIR FLOW
(CFM)
0 568 mW 5.68 mW/°C 312 mW 227 mW
250 904 mW 9.04 mW/°C 497 mW 361 mW
DISSIPATION RATING TABLE 2 – FREE-AIR TEMPERATURES
AIR FLOW
(CFM)
0 2.9 W 23.5 mW/°C 1.9 W 1.5 W
300 4.3 W 34.6 mW/°C 2.8 W 2.2 W
0 3 W 23.8 mW/°C 1.9 W 1.5 W
300 7.2 W 57.9 mW/°C 4.6 W 3.8 W
TA < 25°C
POWER RATING
TA < 25°C
POWER RATING
J
DERATING FACTOR
ABOVE TA = 25°C
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA = 85°C
POWER RATING
Ĕ
recommended operating conditions
Input voltage, V
p
Output current, IO (Note 1) 0 750 mA Operating virtual junction temperature, TJ (Note 1) –40 125 °C
k
To calculate the minimum input voltage for your maximum output current, use the following equation: V
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
6
k
I
O
device operate under conditions beyond those specified in this table for extended periods of time.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS77701 1.5 5.5 TPS77801 1.2 5.5
I(min)
MIN MAX UNIT
2.7 10 V
= V
O(max)
+ V
DO(max load)
.
TPS77701
TPS77801
TPS77x15
(10 µA to 750 mA load) (see
)
V
(see Note 2)
TPS77x18
TPS77x25
TPS77x33
Quiescent current (GND current) (see Note 2)
A
Standby current PG (
)
(TPS778xx)
TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 WITH RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 750-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS230A – SEPTEMBER 1999 – REVISED SEPTEMBER 1999
electrical characteristics over recommended operating free-air temperature range, V
= V
i
Output voltage
Note 2
Output voltage line regulation (∆VO/V (see Notes 2 and 3)
Load regulation 3 mV Output noise voltage Output current Limit VO = 0 V 1.7 2 A
Thermal shutdown junction temperature 150 °C
FB input current TPS77x01 FB = 1.5 V 2 nA High level enable input voltage 1.7 V Low level enable input voltage 0.9 V
Power supply ripple rejection (see Note 2)
Reset (TPS777xx)
TPS778xx
NOTE 2: Minimum IN operating voltage is 2.7 V or V
+ 1 V, IO = 1 mA, EN = 0 V, CO = 10 µF (unless otherwise noted)
O(typ)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
1.5 V ≤ VO ≤ 5.5 V, TJ = 25°C V
1.5 V ≤ VO ≤ 5.5 V, TJ = –40°C to 125°C 0.98V
1.2 V ≤ VO ≤ 5.5 V, TJ = 25°C V
1.2 V ≤ VO ≤ 5.5 V, TJ = –40°C to 125°C 0.98V TJ = 25°C, 2.7 V < VIN < 10 V 1.5 TJ = –40°C to 125°C, 2.7 V < VIN < 10 V 1.470 1.530 TJ = 25°C, 2.8 V < VIN < 10 V 1.8 TJ = –40°C to 125°C, 2.8 V < VIN < 10 V 1.764 1.836 TJ = 25°C, 3.5 V < VIN < 10 V 2.5 TJ = –40°C to 125°C, 3.5 V < VIN < 10 V 2.450 2.550 TJ = 25°C, 4.3 V < VIN < 10 V 3.3 TJ = –40°C to 125°C, 4.3 V < VIN < 10 V 3.234 3.366 10 µA < IO < 750 mA, TJ = 25°C 85 IO = 750 mA, TJ = –40°C to 125°C 125
O
)
Minimum input voltage for valid RESET I Trip threshold voltage VO decreasing 92 98 %V Hysteresis voltage Measured at V Output low voltage VI = 2.7 V, I Leakage current V RESET time-out delay 200 ms Minimum input voltage for valid PG I Trip threshold voltage VO decreasing 92 98 %V Hysteresis voltage Measured at V Output low voltage VI = 2.7 V, I Leakage current V
VO + 1 V < VI ≤ 10 V, TJ = 25°C 0.01 %/V
BW = 300 Hz to 50 kHz, CO = 10 µF, TJ = 25°C
EN = V
I,
EN = V
I,
f = 1 KHz, CO = 10 µF, TJ = 25°C
O(RESET)
(RESET)
O(PG)
(PG)
+ 1 V, whichever is greater. Maximum IN voltage 10V.
O(typ)
= 300µA 1.1 V
O
= 5 V 1 µA
= 300µA 1.1 V
O
= 5 V 1 µA
TJ = 25°C,
2.7 V < VI < 10 V TJ = –40°C to 125°C
2.7 V < VI < 10 V
O(RESET)
O(PG)
= 1mA 0.15 0.4 V
= 1mA 0.15 0.4 V
O
O
O
O
190 µVrms
1 µA
60 dB
0.5 %V
0.5 %V
1.02V
1.02V
O
O
µ
10 µA
O O
O O
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
7
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