IC LDO DUAL REG 3.3/2.5 20HTSSOP

 

TPS70258PWP

Manufacturer Part NumberTPS70258PWP
DescriptionIC LDO DUAL REG 3.3/2.5 20HTSSOP
ManufacturerTexas Instruments
TPS70258PWP datasheets

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Specifications of TPS70258PWP

Regulator TopologyPositive FixedVoltage - Output3.3V, 2.5V
Voltage - Input2.7 ~ 6 VVoltage - Dropout (typical)0.17V @ 500mA
Number Of Regulators2Current - Output500mA (Max), 250mA (Max)
Operating Temperature-40°C ~ 125°CMounting TypeSurface Mount
Package / Case20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOPNumber Of Outputs2
PolarityPositiveInput Voltage Max6 V
Output Voltage3.3 V, 2.5 VOutput TypeFixed
Dropout Voltage (max)275 mVOutput Current500 mA, 250 mA
Line Regulation0.01 %Load Regulation1 mV
Voltage Regulation Accuracy2 %Maximum Power Dissipation4.115 W
Maximum Operating Temperature+ 125 CMounting StyleSMD/SMT
Minimum Operating Temperature- 40 CLead Free Status / RoHS StatusLead free / RoHS Compliant
Current - Limit (min)-Other names296-8020-5
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www.ti.com
DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
FEATURES
1
• Dual Output Voltages for Split-Supply
23
Applications
•
Independent Enable Functions (See Part
Number TPS701xx for Sequenced Outputs)
•
Output Current Range of 500mA on Regulator
1 and 250mA on Regulator 2
•
Fast Transient Response
•
Voltage Options: 3.3V/2.5V, 3.3V/1.8V,
3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable
Outputs
•
Open Drain Power-On Reset with 120ms Delay
•
Open Drain Power Good for Regulator 1 and
Regulator 2
•
Ultralow 190μA (typ) Quiescent Current
•
1μA Input Current During Standby
•
Low Noise: 65μV
Without Bypass Capacitor
RMS
•
Quick Output Capacitor Discharge Feature
•
One Manual Reset Input
•
2% Accuracy Over Load and Temperature
•
Undervoltage Lockout (UVLO) Feature
•
20-Pin PowerPAD™ TSSOP Package
•
Thermal Shutdown Protection
5 V
0.1 mF
0.1 mF
>2 V
EN1
<0.7 V
>2 V
EN2
<0.7 V
1
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.
2
All other trademarks are the property of their respective owners.
3
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.
DESCRIPTION
The TPS702xx is a low dropout voltage regulator with
integrated SVS (RESET, POR, or power on reset)
and power good (PG) functions. These devices are
capable of supplying 500mA and 250mA by regulator
1 and regulator 2 respectively. Quiescent current is
typically 190μA at full load. Differentiated features,
such as accuracy, fast transient response, SVS
supervisory circuit (power on reset), manual reset
input, and independent enable functions provide a
complete system solution.
NC
V
IN1
V
IN1
MR
EN1
EN2
RESET
GND
V
IN2
V
IN2
TPS70251 PWP
V OUT1
V IN1
10 mF
V SENSE1
250 kW
PG1
PG1
MR
>2 V
MR
V IN2
<0.7 V
RESET
PG2
PG2
EN1
V SENSE2
EN2
V OUT2
10 mF
TPS70245, TPS70248
TPS70251, TPS70258
TPS70202
SLVS286E – JUNE 2000 – REVISED DECEMBER 2009
PWP PACKAGE
(TOP VIEW)
1
20
NC
2
19
V
OUT1
3
18
V
OUT1
4
17
V
SENSE1
5
16
PG1
6
15
PG2
7
14
V
SENSE2
8
13
V
OUT2
9
12
V
OUT2
10
11
NC
NC = No internal connection
I/O
3.3 V
250 kW
250 kW
RESET
1.8 V
Core
Copyright © 2000–2009, Texas Instruments Incorporated
/FB1
/FB2

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TPS70258PWP Summary of contents

  • Page 1

    ... V 1 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. 2 All other trademarks are the property of their respective owners. 3 PRODUCTION DATA information is current as of publication date ...

  • Page 2

    ... The device has an undervoltage lockout UVLO circuit that prevents the internal regulators from turning on until V reaches 2.5V. IN1 2 Submit Documentation Feedback . The PG1 pin can be used to implement a SVS (RESET, OUT1 , the PG2 output pin can be connected to MR. OUT2 Copyright © 2000–2009, Texas Instruments Incorporated www.ti.com , the PG1 output OUT1 ...

  • Page 3

    ... TPS70202PWPR Tape and Reel, 2000 TPS70245PWP Tube, 70 TPS70245PWPR Tape and Reel, 2000 TPS70248PWP Tube, 70 TPS70248PWPR Tape and Reel, 2000 TPS70251PWP Tube, 70 TPS70251PWPR Tape and Reel, 2000 TPS70258PWP Tube, 70 TPS70258PWPR Tape and Reel, 2000 UNIT — — °C °C kV Submit Documentation Feedback 3 ...

  • Page 4

    ... To calculate the minimum input voltage for maximum output current, use the following equation Submit Documentation Feedback DERATING T ≤ +25°C A FACTOR 3.067W 30.67mW/°C 4.115W 41.15mW/°C Copyright © 2000–2009, Texas Instruments Incorporated www.ti.com T = +70° +85° 1.687W 1.227W 2.265W 1.646W ...

  • Page 5

    ... Regulator 1 and 1mA to 250mA for Regulator < 1.8V then 2.7V: O Imax Imin If V > 2.5V then Imax Imin O Copyright © 2000–2009, Texas Instruments Incorporated = –40°C to +125°C TEST CONDITIONS < 6V connected +25°C < 6V, FB connected < 6V +25° < 6V, IN < ...

  • Page 6

    ... V = 3.2V IN1 = 1.5V = 1.5V www.ti.com 1V 1mA, IN1 IN2 OUT(nom) O MIN TYP MAX UNIT 1 μs 0.15 0.4 1 μA 2 0.7 –1 1 μA 2 0.7 6 μA 170 mV 275 750 mA 7.5 mA 375 mA 7 μA Copyright © 2000–2009, Texas Instruments Incorporated V OUT OUT ...

  • Page 7

    ... EN2 V (2 Pins) IN2 A. For most applications, V SENSE1 close as possible to the device. For other implementations, refer to SENSE terminal connection discussion in the Application Information section. Copyright © 2000–2009, Texas Instruments Incorporated DEVICE INFORMATION Fixed Voltage Version Current Sense - Reference V ref V ref ...

  • Page 8

    ... ENA_1 PG2 Comp FB2 - Rising Edge Deglitch 0. ref ENA_2 V FB2 ref + - ENA_2 Current ENA_2 Sense Copyright © 2000–2009, Texas Instruments Incorporated www.ti.com V (2 Pins) OUT1 FB1 (see Note A) PG1 V IN1 MR RESET 120 ms Delay PG2 FB2 (see Note Pins) OUT2 Application Information ...

  • Page 9

    ... PG1. The symbol V PG1 standards for semiconductor symbology trip voltage is typically 5% lower than the output voltage (95%V ). IT- Copyright © 2000–2009, Texas Instruments Incorporated SLVS286E – JUNE 2000 – REVISED DECEMBER 2009 RESET Timing Diagram 120 ms Delay RESET ...

  • Page 10

    ... Input voltage of regulator 1 Input voltage of regulator 2 Output voltage of regulator 1 Output voltage of regulator 2 Regulator 2 output voltage sense/regulator 2 feedback for adjustable Regulator 1 output voltage sense/regulator 1 feedback for adjustable www.ti.com t V IT+ (see Note A) V IT- (see Note the hysteresis voltage. IT+ - Copyright © 2000–2009, Texas Instruments Incorporated ...

  • Page 11

    ... Adding RC networks between sense terminals and V terminals to filter noise is not recommended because these networks can cause the OUT regulators to oscillate. Copyright © 2000–2009, Texas Instruments Incorporated TPS70245, TPS70248 TPS70251, TPS70258 SLVS286E – JUNE 2000 – REVISED DECEMBER 2009 = I /β ...

  • Page 12

    ... V are inputs to each regulator. Internal bias voltages are powered by V IN1 IN2 V and V OUT1 OUT2 V and V are output terminals of each regulator. OUT1 OUT2 12 Submit Documentation Feedback www.ti.com , the PG2 output OUT2 . IN1 Copyright © 2000–2009, Texas Instruments Incorporated OUT ...

  • Page 13

    ... V OUT1 3.301 3.300 3.299 3.298 3.297 3.296 3.295 0 0.1 0 Output Current O Figure 1. Copyright © 2000–2009, Texas Instruments Incorporated TYPICAL CHARACTERISTICS Table of Graphs vs Output current vs Junction temperature vs Junction temperature vs Frequency vs Frequency vs Frequency vs Temperature vs Input voltage ) ) vs Time (start-up) vs Output current 1.802 1.801 1 ...

  • Page 14

    ... C www.ti.com TPS70251 OUTPUT VOLTAGE vs JUNCTION TEMPERATURE 500 110 125 Junction T emperature - °C °C Figure 4. GROUND CURRENT vs JUNCTION TEMPERATURE I OUT1 = OUT2 = OUT1 = 500 mA I OUT2 = 250 110 125 Junction T emperature - ° ° C Figure 6. Copyright © 2000–2009, Texas Instruments Incorporated ...

  • Page 15

    ... Frequency - Hz Figure 7. TPS70251 POWER-SUPPLY REJECTION RATIO vs FREQUENCY - -20 V OUT2 -30 -40 -50 -60 -70 -80 -90 10 100 Frequency - Figure 9. Copyright © 2000–2009, Texas Instruments Incorporated POWER-SUPPLY REJECTION RATIO 500 OUT1 -10 -20 -30 -40 -50 -60 -70 -80 -90 100 POWER-SUPPLY REJECTION RATIO 250 OUT2 -10 -20 -30 -40 ...

  • Page 16

    ... OUTPUT SPECTRAL NOISE DENSITY 10 V IN1 = 4 OUT1 = 3 0.1 0. 100 k 100 OUTPUT SPECTRAL NOISE DENSITY 10 V IN2 = 2 OUT2 = 1 250 mA 1 0.1 0. 100 k 100 www.ti.com vs FREQUENCY V IN1 = 4 OUT1 = 3 500 100 Frequency - Hz Figure 12. vs FREQUENCY 100 Frequency - Hz Figure 14. Copyright © 2000–2009, Texas Instruments Incorporated ...

  • Page 17

    ... Frequency - Hz Figure 15. OUTPUT IMPEDANCE vs FREQUENCY 100 250 mA V OUT2 = 1 +25° 0.1 0.01 10 100 Frequency - Hz Figure 17. Copyright © 2000–2009, Texas Instruments Incorporated 100 OUT1 = 3 +25° 0.1 0.01 100 100 OUT2 = 1 +25° 0.1 0.01 100 TPS70245, TPS70248 ...

  • Page 18

    ... V OUT1 400 300 200 100 0 4.5 5 5.5 2 www.ti.com DROPOUT VOLTAGE vs TEMPERATURE 110 125 T - Temperature - °C Figure 20. TPS70202 DROPOUT VOLTAGE vs INPUT VOLTAGE 250 mA V OUT2 +125° +25° -40°C 3 3.5 4 4 Input Voltage - V Figure 22. Copyright © 2000–2009, Texas Instruments Incorporated ...

  • Page 19

    ... Time - ms - Figure 23. LINE TRANSIENT RESPONSE +25° 500 mA 5 OUT1 4 - 100 120 t - Time - ms Figure 25. Copyright © 2000–2009, Texas Instruments Incorporated +25°C V OUT1 = 3.3 V 250 -20 0 1.2 1.4 1.6 1 +25° 250 mA 3 OUT2 2 140 160 180 200 TPS70245, TPS70248 TPS70251, TPS70258 TPS70202 SLVS286E – ...

  • Page 20

    ... Submit Documentation Feedback OUTPUT VOLTAGE AND ENABLE VOLTAGE 1 250 mA V OUT1 = Standby 1.4 1.6 1.8 2.0 0 0.2 0.4 0.6 To Load + C OUT R L ESR Copyright © 2000–2009, Texas Instruments Incorporated www.ti.com vs TIME (START-UP) 0.8 1.0 1.2 1.4 1.6 1.8 2.0 t Time - - ms Figure 28. ...

  • Page 21

    ... Output Current Figure 32. (1) Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to C Copyright © 2000–2009, Texas Instruments Incorporated TYPICAL REGION OF STABILITY (1) EQUIVALENT SERIES RESISTANCE ...

  • Page 22

    ... V 95% 95 120 ms and MR is logic high. IN UVLO Is Enabled Before V OUT1 www.ti.com TPS702xxPWP (Fixed Output Option) V OUT1 V OUT1 V IN1 SENSE1 250 kW PG1 IN2 250 kW RESET RESET PG2 PG2 EN1 V SENSE2 EN2 V OUT2 V OUT2 OUT2 Copyright © 2000–2009, Texas Instruments Incorporated ...

  • Page 23

    ... EN2 EN1 V OUT2 V OUT1 PG2 PG1 MR RESET NOTES Time at which V is greater than The timing diagram is not drawn to scale. Copyright © 2000–2009, Texas Instruments Incorporated are tied to the IN2 . MR is UVLO reaches OUT2 0.1 mF EN1 >2 V <0.7 V EN2 > ...

  • Page 24

    ... MR is logic high. IN UVLO Faults Out OUT1 www.ti.com TPS702xxPWP (Fixed Output Option) V OUT1 V OUT1 V IN1 SENSE1 250 kW PG1 MR V IN2 250 kW RESET RESET PG2 PG2 EN1 V SENSE2 EN2 V OUT2 V OUT2 FAULT ON V OUT1 Copyright © 2000–2009, Texas Instruments Incorporated ...

  • Page 25

    ... The equivalent schematic diagram of any capacitor can therefore be drawn as shown in In most cases one can neglect the effect of inductive impedance ESL. Therefore, the following application focuses mainly on the parasitic resistance ESR. Copyright © 2000–2009, Texas Instruments Incorporated APPLICATION INFORMATION MAXIMUM ESR Kemet 345mΩ ...

  • Page 26

    ... C out = V ). This condition means no current is flowing into the (CO) OUT in Figure 38. ESR drops continuously until the response time t OUT in Figure 39. 2 Copyright © 2000–2009, Texas Instruments Incorporated www.ti.com V out R LOAD in Figure 39). 1 now acts like OUT = V – result OUT (CO) ...

  • Page 27

    ... R2 = 30.1kΩ to set the divider current at approximately 50μA, and then calculate R1 using OUT ´ V REF where: • 1.224V typ (the internal reference voltage) REF Copyright © 2000–2009, Texas Instruments Incorporated Low-to-High Output Current TPS70245, TPS70248 TPS70251, TPS70258 TPS70202 SLVS286E – JUNE 2000 – REVISED DECEMBER 2009 I OUT V OUT ESR 1 ESR 2 ...

  • Page 28

    ... Submit Documentation Feedback OUT and the actual dissipation, P D(max) Equation 2: Equation 3: www.ti.com OUTPUT VOLTAGE PROGRAMMING GUIDE OUTPUT R1 R2 UNIT VOLTAGE 2.5 V 31.6 30.1 kW 3.3 V 51.1 30.1 kW 3.6 V 59.0 30 which must be less than or D Copyright © 2000–2009, Texas Instruments Incorporated (2) (3) ...

  • Page 29

    ... Deleted falling edge delay specification ................................................................................................................................ • Updated Fixed Voltage Version block diagram .................................................................................................................... • Updated Adjustable Voltage Version block diagram ............................................................................................................ Copyright © 2000–2009, Texas Instruments Incorporated SLVS286E – JUNE 2000 – REVISED DECEMBER 2009 REVISION HISTORY Submit Documentation Feedback TPS70245, TPS70248 ...

  • Page 30

    ... TPS70258PWP ACTIVE TPS70258PWPG4 ACTIVE TPS70258PWPR ACTIVE TPS70258PWPRG4 ACTIVE (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 ...

  • Page 31

    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% ...

  • Page 32

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS70202PWPR HTSSOP PWP TPS70245PWPR HTSSOP PWP TPS70248PWPR HTSSOP PWP TPS70251PWPR HTSSOP PWP TPS70258PWPR HTSSOP PWP PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 20 2000 330.0 16.4 6.95 ...

  • Page 33

    ... Device Package Type TPS70202PWPR HTSSOP TPS70245PWPR HTSSOP TPS70248PWPR HTSSOP TPS70251PWPR HTSSOP TPS70258PWPR HTSSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) PWP 20 2000 PWP 20 2000 PWP 20 2000 PWP 20 2000 PWP 20 2000 Pack Materials-Page 2 3-Dec-2009 Width (mm) Height (mm) 346 ...

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  • Page 37

    ... 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’ ...

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