Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPTN04050CAZT

GND

100 F

Electrolytic

(Required)

0 F

Electrolytic

(Required)

R #

,1%

(Required)

SET

0.1W

PTN04050C

(TopView)

* Seethe ApplicationInformation

ApplicationInformation

sectionforcapacitorrecommendations.

#Seethe sectionforR values.

SET

STANDARD APPLICATION

PTN04050C

www.ti.com

SLTS251A –SEPTEMBER 2005–REVISED FEBRUARY 2011

12-W, 3.3/5-V INPUT, WIDE OUTPUT ADJUSTABLE BOOST CONVERTER

Check for Samples: PTN04050C

FEATURES

APPLICATIONS

• Up to 12 W Output Power • Telecommunications, Instrumentation,

and General-Purpose Applications

• Wide Input Voltage Range

(2.95 V to 5.5 V)

• Wide Output Voltage Adjust

(5 V to 15 V)

• High Efficiency (Up to 90%)

• Operating Temperature: –40°C to 85°C

• Surface Mount Package Available

DESCRIPTION

The PTN04050C is a 4-pin boost-voltage regulator product. In new designs it should be considered in place of

the PT5040 series of positive step-up products. The PTN04050C is smaller and lighter than its predecessors,

and has either similar or improved electrical performance characteristics. The case-less, double-sided package,

also exhibits improved thermal characteristics, and is compatible with TI's roadmap for RoHS and lead-free

compliance.

Operating over a 2.95V to 5.5V input range, the PTN04050C provides high-efficiency, step-up voltage conversion

for loads of up to 12W. The output voltage is set using a single external resistor. The PTN04050C may be set to

any value within the range, 5V to 15V. The output voltage of the PTN04050C can be as little as 0.5V higher than

the input, allowing an output voltage of 5V, with an input voltage of 4.5V.

The PTN04050C modules are suited to a wide variety of general-purpose applications that operate off 3.3-V or 5-

V dc power.

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.

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.

Summary of content (19 pages)

PAGE 1
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 12-W, 3.3/5-V INPUT, WIDE OUTPUT ADJUSTABLE BOOST CONVERTER Check for Samples: PTN04050C FEATURES APPLICATIONS • • • 1 • • • • Up to 12 W Output Power Wide Input Voltage Range (2.95 V to 5.
PAGE 2
PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see the TI website at www.ti.com.
PAGE 3
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 ELECTRICAL CHARACTERISTICS operating at 25°C free-air temperature, VI = 5 V, VO = 12 V, IO = IO (max), CI = 100 μF, CO = 100 μF (unless otherwise noted) PARAMETER TEST CONDITIONS PTN04050C MIN Over VI Range IO Output current VI Input voltage range η MAX 0.1 (1) 0.8 VO = 12 V 0.1 (1) 1.0 VO = 9 V 0.1 (1) 1.3 VO = 5 V 0.1 (1) Over IO range UNIT A 2.4 2.95 Output adjust range VO TYP VO = 15 V 5.
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PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com PIN ASSIGNMENT 1 2 4 PTN04050C (Top View) 3 PIN FUNCTIONS PIN NAME NO. I/O DESCRIPTION This is the common ground connection for the VI and VO power connections. It is also the 0 Vdc reference for the VO Adjust control input. GND 1 I/O VI 2 I The positive input voltage power node to the module, which is referenced to common GND.
PAGE 5
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 TYPICAL CHARACTERISTICS (3.3-V INPUT) (1) EFFICIENCY vs OUTPUT CURRENT OUTPUT VOLTAGE RIPPLE vs OUTPUT CURRENT 90 VO = 9 V VO = 12 V VO = 15 V 70 VO = 15 V 150 120 VO = 9 V 90 VO = 12 V 60 VO = 5 V 30 VO = 9 V 1.2 0.8 0 0.8 0.4 1.6 1.2 2 2.4 0 0 0.8 0.4 1.2 1.6 2 2.4 0 1.6 1.2 2 IO - Output Current - A Figure 1. Figure 2. Figure 3.
PAGE 6
PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com TYPICAL CHARACTERISTICS (5-V INPUT) (1) EFFICIENCY vs OUTPUT CURRENT OUTPUT VOLTAGE RIPPLE vs OUTPUT CURRENT 90 VO = 12 V VO = 15 V 70 VO = 15 V 120 VO = 12 V 90 60 VO = 9 V 30 0 60 0 0.2 0.4 0.8 0.6 1 1.2 0 0.2 IO - Output Current - A 0 0.2 0.4 0.8 0.6 1 1.
PAGE 7
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 APPLICATION INFORMATION Adjusting the Output Voltage of the PTN04050C Wide-Output Adjust Power Modules General A resistor must be connected between the VO Adjust control (pin 3) and GND (pin 1) to set the output voltage of the PTN04050C product. The adjustment range is from 5 V to 15 V. If pin 3 is left open, the output voltage defaults to the lowest value.
PAGE 8
PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com Table 2. PTN04050C Output Voltage Set-Point Resistor Values 8 VO RSET VO RSET VO RSET 5V Open 10 V 3.06 kΩ 12.6 V 1.01 kΩ 5.2 V 147 kΩ 10.1 V 2.94 kΩ 12.7 V 956 Ω 5.4 V 72 kΩ 10.2 V 2.83 kΩ 12.8 V 906 Ω 5.6 V 47 kΩ 10.3 V 2.72 kΩ 12.9 V 857 Ω 5.8 V 34.5 kΩ 10.4 V 2.62 kΩ 13 V 810 Ω 6V 27 kΩ 10.5 V 2.52 kΩ 13.1 V 764 Ω 6.2 V 22 kΩ 10.6 V 2.42 kΩ 13.2 V 719 Ω 6.4 V 18.5 kΩ 10.7 V 2.
PAGE 9
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 CAPACITOR RECOMMENDATIONS FOR PTN04050C WIDE-OUTPUT ADJUST POWER MODULES Input Capacitor The minimum required input capacitance is 100 μF. The minimum ripple current rating for any nonceramic capacitance must be greater than 250 mA rms. The ripple current rating of electrolytic capacitors is a major consideration when they are used at the input.
PAGE 10
PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com Designing for Load Transients The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of 1 A/µs. The typical voltage deviation for this load transient is given in the data sheet specification table using the required value of output capacitance.
PAGE 11
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 Power-Up Characteristics When configured per the standard application, the PTN04050C power module produces a regulated output voltage following the application of a valid input source voltage. During power up, internal soft-start circuitry slows the rate that the output voltage rises, thereby limiting the amount of in-rush current drawn from the input source.
PAGE 12
PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com Boost Topology With boost regulators an output voltage of approximately (VI - 300 mV) is present whenever the input voltage to the module is below the minimum input voltage range, or during an overtemperature condition. Also, a boost regulator cannot provide inherent short-circuit protection. This is due to the fact that there is a dc path from the input to the output even when the PWM and FET are not operating.
PAGE 13
PTN04050C www.ti.com SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 π Filters If a further reduction in ripple/noise level is required for an application, higher order filters must be used. A π (pi) filter, employing a ferrite bead (Fair-Rite Part Number 2673000701 or equivalent) in series with the input or output terminals of the regulator reduces the ripple/noise by at least 20 db (see Figure 18 and Figure 19).
PAGE 14
PTN04050C SLTS251A – SEPTEMBER 2005 – REVISED FEBRUARY 2011 www.ti.com REVISION HISTORY Changes from Original (September 2005) to Revision A Page • Changed the Abs Max Ratings Storage temperature from: -40°C to 125°C To: -55°C to 125°C ........................................ 2 • Changed Note 2 of the ELECTRICAL CHARACTERISTICS table ......................................................................................
PAGE 15
PACKAGE OPTION ADDENDUM www.ti.
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 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.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.