Datasheet

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VIN VOUT

GND

TPS7A65xx

CIN

COUT

VOUT

VIN

ESR of C ( )OUT Ω

0.01 0.1 1 10 100 300

0.01

0.1

V = 14V

C = 10 F, 47 F

T = 27°C

V = 5V, 3.3V

OUT

µ µ

Stable Operation

Over Entire Region

I (mA)OUT

TPS7A6533-Q1

TPS7A6550-Q1

www.ti.com

SLVSA98C –MAY 2010–REVISED JULY 2012

300-mA 40-V LOW-DROPOUT REGULATOR WITH 25-µA QUIESCENT CURRENT

Check for Samples: TPS7A6533-Q1, TPS7A6550-Q1

FEATURES

DESCRIPTION

The TPS7A65xx-Q1 is a family of low-dropout linear

• Low Dropout Voltage

voltage regulators designed for low power

– 300 mV at I

OUT

= 150 mA

consumption and quiescent current less than 25 µA in

• 4-V to 40-V Wide Input Voltage Range

light-load applications. These devices feature

With up to 45-V Transients

integrated overcurrent protection and a design to

achieve stable operation even with low-ESR ceramic

• 300-mA Maximum Output Current

output capacitors. A low-voltage tracking feature

• 25-µA (Typ) Ultralow Quiescent Current at

allows for a smaller input capacitor and can possibly

Light Loads

eliminate the need of using a boost converter during

• 3.3-V and 5-V Fixed Output Voltage With ±2%

cold crank conditions. Because of these features,

these devices are well-suited in power supplies for

Tolerance

various automotive applications.

• Low-ESR Ceramic Output Stability Capacitor

• Integrated Fault Protection

TYPICAL REGULATOR STABILITY

– Short-Circuit and Overcurrent Protection

– Thermal Shutdown

• Low Input-Voltage Tracking

• Thermally Enhanced Power Package

– 3-Pin TO-252 (KVU /DPAK)

APPLICATIONS

• Qualified for Automotive Applications

• Infotainment Systems With Sleep Mode

• Body Control Modules

• Always-On Battery Applications

– Gateway Applications

– Remote Keyless Entry Systems

– Immobilizers

Figure 1. ESR versus Load Current for

TPS7A6550-Q1

TYPICAL APPLICATION SCHEMATIC

Figure 2. Application Schematic

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 (18 pages)

PAGE 1
TPS7A6533-Q1 TPS7A6550-Q1 www.ti.com SLVSA98C – MAY 2010 – REVISED JULY 2012 300-mA 40-V LOW-DROPOUT REGULATOR WITH 25-µA QUIESCENT CURRENT Check for Samples: TPS7A6533-Q1, TPS7A6550-Q1 FEATURES DESCRIPTION • The TPS7A65xx-Q1 is a family of low-dropout linear voltage regulators designed for low power consumption and quiescent current less than 25 µA in light-load applications.
PAGE 2
TPS7A6533-Q1 TPS7A6550-Q1 SLVSA98C – MAY 2010 – REVISED JULY 2012 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 (1) OUTPUT VOLTAGE (1) PACKAGE 5V 3-pin KVU 3.
PAGE 3
TPS7A6533-Q1 TPS7A6550-Q1 www.ti.com SLVSA98C – MAY 2010 – REVISED JULY 2012 ELECTRICAL CHARACTERISTICS VIN = 14V, TJ = –40ºC to 150ºC (unless otherwise noted) NO. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 4. Input Voltage (VIN pin) Fixed 5-V output, IOUT = 1 mA 5.3 40 Fixed 3.3-V output, IOUT = 1 mA 3.6 40 4.1 VIN Input voltage 4.2 IQUIESCENT Quiescent current VIN = 8.2 V to 18 V, IOUT = 0.01 mA to 0.75 mA 4.
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TPS7A6533-Q1 TPS7A6550-Q1 SLVSA98C – MAY 2010 – REVISED JULY 2012 www.ti.com DEVICE INFORMATION KVU PACKAGE (TOP VIEW) 3 2 1 GND VIN VOUT TERMINAL FUNCTIONS NO. NAME TYPE DESCRIPTION Input voltage pin: The unregulated input voltage is supplied to this pin. A bypass capacitor is connected between VIN pin and GND pin to dampen input line transients. 1 VIN I 2 GND I/O Ground pin: This is signal ground pin of the IC.
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TPS7A6533-Q1 TPS7A6550-Q1 www.ti.com SLVSA98C – MAY 2010 – REVISED JULY 2012 TYPICAL CHARACTERISTICS ESR vs LOAD CURRENT ESR vs LOAD CURRENT 10 VIN = 14V COUT = 1µF TA = 27°C VOUT = 5V VIN = 14V COUT = 1µF TA = 27°C VOUT = 3.3V ESR of COUT (Ω) ESR of COUT (Ω) 10 1 Stable Operation 0.1 0.06 1 Stable Operation 0.1 Unstable Operation 0.06 0.03 0.01 0.01 Unstable Operation 0.1 1 IOUT (mA) 10 30 100 0.03 0.01 0.01 300 0.
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TPS7A6533-Q1 TPS7A6550-Q1 SLVSA98C – MAY 2010 – REVISED JULY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) OUTPUT VOLTAGE vs AMBIENT AIR TEMPERATURE 5.1 OUTPUT VOLTAGE vs INPUT VOLTAGE 6 VIN = 14V 5.08 IOUT = 1mA TA = 25°C 5 5.06 5.04 4 VOUT (V) 5.02 VOUT (V) IOUT = 100mA 5 4.98 3 2 4.96 4.94 1 4.92 4.9 -50 0 50 TA (°C) 100 0 150 2 0.12 0.
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TPS7A6533-Q1 TPS7A6550-Q1 www.ti.com SLVSA98C – MAY 2010 – REVISED JULY 2012 TYPICAL CHARACTERISTICS (continued) PSRR AT HEAVY LOAD CURRENT 120 VIN = 14V IOUT = 250mA TA = 25°C COUT = 10µF VOUT = 5V, 3.3V 100 80 60 40 80 60 40 20 0 VIN = 14V IOUT = 1mA TA = 25°C COUT = 10µF VOUT = 5V, 3.
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TPS7A6533-Q1 TPS7A6550-Q1 SLVSA98C – MAY 2010 – REVISED JULY 2012 www.ti.com DETAILED DESCRIPTION These devices are available in two fixed-outputvoltage versions as follows: • 5-V output version (TPS7A6550-Q1) • 3.3-V output version (TPS7A6533-Q1) The following section describes the features of TPS7A65xx-Q1 voltage regulators in detail. voltages. The charge-pump switching thresholds are hysteretic.
PAGE 9
TPS7A6533-Q1 TPS7A6550-Q1 www.ti.com SLVSA98C – MAY 2010 – REVISED JULY 2012 Undervoltage Shutdown Integrated Fault Protection These devices have an integrated undervoltage lockout (UVLO) circuit to shut down the output if the input voltage (VIN) falls below an internally fixed UVLO threshold level (VIN-UVLO) as shown in Figure 7. This ensures that the regulator does not latch into an unknown state during low input-voltage conditions.
PAGE 10
TPS7A6533-Q1 TPS7A6550-Q1 SLVSA98C – MAY 2010 – REVISED JULY 2012 www.ti.com APPLICATION INFORMATION A typical application circuit for TPS7A65xx-Q1 is Figure 9. Depending on the end application, one may use different values of external components. An application may require a larger output capacitor during fast load steps to prevent the output from temporarily dropping down. TI recommends a lowESR ceramic capacitor with dielectric of type X5R or X7R.
PAGE 11
TPS7A6533-Q1 TPS7A6550-Q1 www.ti.com SLVSA98C – MAY 2010 – REVISED JULY 2012 Keeping other factors constant, the surface area of the thermal land pad contributes to heat dissipation only to a certain extent. Figure 12 shows the variation of θJA with surface area of the thermal land pad (soldered to the exposed pad) for the KVU package. Exposed Tab 55 Thermal Via Thermal Land Pad 50 PCB (a) Before soldering q JA (°C/W) Ground Plane 45 KVU (DPAK) (JESD 51-3) 40 35 (b) After soldering Figure 11.
PAGE 12
TPS7A6533-Q1 TPS7A6550-Q1 SLVSA98C – MAY 2010 – REVISED JULY 2012 www.ti.com REVISION HISTORY Changes from Original (May 2010) to Revision A • Page Removed all KKT information. .............................................................................................................................................. 2 Changes from Revision A (November 2011) to Revision B • Page Changed the θJP value in the Abs Max Table From: 12.7 To: 1.2°C/W ........................................................
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 29-May-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS7A6533QKVURQ1 TO-252 KVU 3 2500 330.0 16.4 6.9 10.5 2.7 8.0 16.0 Q2 TPS7A6550QKVURQ1 TO-252 KVU 3 2500 330.0 16.4 6.9 10.5 2.7 8.0 16.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 29-May-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS7A6533QKVURQ1 TO-252 KVU 3 2500 340.0 340.0 38.0 TPS7A6550QKVURQ1 TO-252 KVU 3 2500 340.0 340.0 38.
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