Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsLMZ13610TZ/NOPB

LMZ13610

www.ti.com

SNVS709E –MARCH 2011–REVISED OCTOBER 2013

LMZ13610 10A SIMPLE SWITCHER

Power Module with 36V Maximum Input Voltage

Check for Samples: LMZ13610

FEATURES

ELECTRICAL SPECIFICATIONS

• Integrated Shielded Inductor

• 50W Maximum Total Output Power

• Simple PCB Layout • Up to 10A Output Current

• Fixed Switching Frequency (350 kHz) • Input Voltage Range 6V to 36V

• Flexible Startup Sequencing Using External • Output Voltage Range 0.8V to 6V

Soft-start, Tracking and Precision Enable

• Efficiency up to 92%

• Protection Against Inrush Currents and Faults

Such as Input UVLO and Output Short Circuit DESCRIPTION

The LMZ13610 SIMPLE SWITCHER power module

• –40°C to 125°C Junction Temperature Range

is an easy-to-use step-down DC-DC solution capable

• Single Exposed Pad and Standard Pinout for

of driving up to 10A load. The LMZ13610 is available

Easy Mounting and Manufacturing

in an innovative package that enhances thermal

• Fully enabled for WEBENCH

Power Designer

performance and allows for hand or machine

soldering.

• Pin compatible with LMZ22010/08,

LMZ12010/08, LMZ23610/08/06H, and

The LMZ13610 can accept an input voltage rail

LMZ13608/06H

between 6V and 36V and deliver an adjustable and

highly accurate output voltage as low as 0.8V. The

APPLICATIONS

LMZ13610 only requires two external resistors and

three external capacitors to complete the power

• Point of Load Conversions from 12V and 24V

solution. The LMZ13610 is a reliable and robust

Input Rail

design with the following protection features: thermal

• Time Critical Projects

shutdown, input under-voltage lockout, output over-

voltage protection, short-circuit protection, output

• Space Constrained / High Thermal

current limit, and allows startup into a pre-biased

Requirement Applications

output.

• Negative Output Voltage Applications (See AN-

2027, literature number SNVA425)

PERFORMANCE BENEFITS

• High Efficiency Reduces System Heat

Generation

• Low Radiated Emissions (EMI) Complies with

EN55022 Class B Standard

– EN 55022:2006, +A1:2007, FCC Part 15

Subpart B, Tested on Evaluation Board with

EMI Configuration

Figure 1. PFM 11 Pin Package

• Only 7 External Components

15 x 17.79 x 5.9 mm (0.59 x 0.7 x 0.232 in)

• Low Output Voltage Ripple

= 9.9 °C/W, θ

= 1.0°C/W

(1)

RoHS Compliant

• No External Heat Sink Required

Peak Reflow Case Temp = 245°C

Power Module SMT Guidelines

(1) θ

measured on a 75mm x 90mm four layer PCB

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.

2SIMPLE SWITCHER, WEBENCH are registered trademarks of Texas Instruments.

3All other trademarks are the property of their respective owners.

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 (31 pages)

PAGE 1
LMZ13610 www.ti.
PAGE 2
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com System Performance 100 MAXIMUM OUTPUT CURRENT (A) 12 EFFICIENCY (%) 90 80 70 60 50 40 30 24 Vin 20 0 1 2 3 4 5 6 7 8 OUTPUT CURRENT (A) 10 8 6 4 2 JA = 9.9 °C/W JA = 6.8 °C/W JA = 5.2 °C/W 0 9 10 20 Figure 2. Efficiency VIN = 24V VOUT = 3.3V 40 60 80 100 TEMPERATURE (C) 120 Figure 3. Thermal derating curve VIN = 24V, VOUT = 3.
PAGE 3
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 Connection Diagram 11 10 9 8 7 6 5 4 3 2 1 PGND/EP Connect to AGND VOUT VOUT NC SS FB AGND AGND EN AGND VIN VIN Figure 5. Top View 11-Lead PFM PIN DESCRIPTIONS Pin Name Description 1, 2 VIN 3, 5, 6 AGND 4 EN Enable — Input to the precision enable comparator. Rising threshold is 1.274V typical. Once the module is enabled, a 20 uA source current is internally activated to accommodate programmable hysteresis.
PAGE 4
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 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. ABSOLUTE MAXIMUM RATINGS (1) (2) VIN to PGND -0.3V to 40V EN to AGND -0.3V to 5.5V SS, FB to AGND -0.3V to 2.5V AGND to PGND -0.3V to 0.
PAGE 5
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 ELECTRICAL CHARACTERISTICS (continued) Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only.
PAGE 6
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. Dissipation 5.0V output @ 25°C 12 90 10 DISSIPATION (W) EFFICIENCY (%) Efficiency 5.
PAGE 7
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. Dissipation 1.8V output @ 25°C 12 80 10 DISSIPATION (W) EFFICIENCY (%) Efficiency 1.
PAGE 8
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. Efficiency 1.0V output @ 25°C Dissipation 1.
PAGE 9
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. Efficiency 2.5V output @ 85°C 100 Dissipation 2.
PAGE 10
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. Dissipation 1.2V output @ 85°C 14 80 12 70 DISSIPATION (W) EFFICIENCY (%) Efficiency 1.
PAGE 11
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient.
PAGE 12
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. Output ripple 12VIN, 1.2VOUT @ Full Load, BW = 20 MHz Output ripple 12VIN, 1.2VOUT@ Full Load, BW = 250 MHz Figure 42. Figure 43.
PAGE 13
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified, the following conditions apply: VIN = 12V; CIN = three x 10μF + 47nF X7R Ceramic; COUT = two x 330μF Specialty Polymer + 47 uF Ceramic + 47nF Ceramic; CFF = 4.7nF; Tambient = 25° C for waveforms. All indicated temperatures are ambient. 3.3VOUT Soft Start, no CSS 3.3VOUT Soft Start, CSS = 0.47uF Figure 48. Figure 49.
PAGE 14
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com BLOCK DIAGRAM Linear Regulator 2M VIN 1 3 3 CIN EN CBST CINint 1 2.
PAGE 15
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 DESIGN STEPS FOR THE LMZ13610 APPLICATION The LMZ13610 is fully supported by WEBENCH which offers: component selection, electrical and thermal simulations. Additionally, there are both evaluation and demonstration boards that may be used as a starting point for design. The following list of steps can be used to manually design the LMZ13610 application. All • • • • • • references to values refer to the typical applications schematic.
PAGE 16
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com INT-VCC (5V) VIN 13 PA 2.0M RENT 42.2k RENH ENABLE RUN 100: 5.1V RENB 12.7k 1.274V Figure 50. Enable Input Detail OUTPUT VOLTAGE SELECTION Output voltage is determined by a divider of two resistors connected between VOUT and AGND. The midpoint of the divider is connected to the FB input. The regulated output voltage determined by the external divider resistors RFBT and RFBB is: VOUT = 0.
PAGE 17
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 TRACKING SUPPLY DIVIDER OPTION The tracking function allows the module to be connected as a slave supply to a primary voltage rail (often the 3.3V system rail) where the slave module output voltage is lower than that of the master. Proper configuration allows the slave rail to power up coincident with the master rail such that the voltage difference between the rails during ramp-up is small (i.e. <0.15V typ).
PAGE 18
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com Note that the stability requirement for minimum output capacitance must always be met. One recommended output capacitor combination is two 330μF, 15 mOhm ESR tantalum polymer capacitors connected in parallel with a 47 uF 6.3V X5R ceramic. This combination provides excellent performance that may exceed the requirements of certain applications. Additionally some small 47nF ceramic capacitors can be used for high frequency EMI suppression.
PAGE 19
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 POWER DISSIPATION AND BOARD THERMAL REQUIREMENTS When calculating module dissipation use the maximum input voltage and the average output current for the application. Many common operating conditions are provided in the characteristic curves such that less common applications can be derived through interpolation. In all designs, the junction temperature must be kept below the rated maximum of 125°C.
PAGE 20
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com PC BOARD LAYOUT GUIDELINES PC board layout is an important part of DC-DC converter design. Poor board layout can disrupt the performance of a DC-DC converter and surrounding circuitry by contributing to EMI, ground bounce and resistive voltage drop in the traces. These can send erroneous signals to the DC-DC converter resulting in poor regulation or instability. Good layout can be implemented by following a few simple design rules.
PAGE 21
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 ADDITIONAL FEATURES OUTPUT OVER-VOLTAGE PROTECTION If the voltage at FB is greater than a 0.86V internal reference, the output of the error amplifier is pulled toward ground, causing VOUT to fall. CURRENT LIMIT The LMZ13610 is protected by both low side (LS) and high side (HS) current limit circuitry. The LS current limit detection is carried out during the off-time by monitoring the current through the LS synchronous MOSFET.
PAGE 22
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com DISCONTINUOUS CONDUCTION AND CONTINUOUS CONDUCTION MODES At light load the regulator will operate in discontinuous conduction mode (DCM). With load currents above the critical conduction point, it will operate in continuous conduction mode (CCM). When operating in DCM, inductor current is maintained to an average value equaling Iout.
PAGE 23
LMZ13610 www.ti.com SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 Typical Application Schematic Diagram and BOM + CIN5 (OPT) CIN6 (OPT) VOUT SS FB PGND AGND VIN EN VIN LMZ13610 VOUT RENT CIN2,3,4 CIN1 D1 5.1V (OPT) CO3,4 CSS RENB CO1 (OPT) CO2 (OPT) CO5 (OPT) LOAD RFBB RFBT Figure 55. Table 1. Typical Application Bill of Materials Ref Des Description Case Size Manufacturer U1 SIMPLE SWITCHER PFM-11 Texas Instruments Manufacturer P/N LMZ13610TZ CIN1,6 (OPT) 0.
PAGE 24
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com Figure 56.
PAGE 25
LMZ13610 www.ti.
PAGE 26
LMZ13610 SNVS709E – MARCH 2011 – REVISED OCTOBER 2013 www.ti.com REVISION HISTORY Changes from Revision D (November 2012) to Revision E Page • Added Peak Reflow Case Temp = 245°C ............................................................................................................................ 1 • Deleted 12mils ......................................................................................................................................................................
PAGE 27
PACKAGE OPTION ADDENDUM www.ti.
PAGE 28
PACKAGE MATERIALS INFORMATION www.ti.com 8-Oct-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device LMZ13610TZE/NOPB Package Package Pins Type Drawing PFM NDY 11 SPQ 250 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 330.0 32.4 Pack Materials-Page 1 15.45 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 18.34 6.2 20.0 32.
PAGE 29
PACKAGE MATERIALS INFORMATION www.ti.com 8-Oct-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMZ13610TZE/NOPB PFM NDY 11 250 367.0 367.0 55.
PAGE 30
MECHANICAL DATA NDY0011A BOTTOM SIDE OF PACKAGE TOP SIDE OF PACKAGE TZA11A (Rev F) www.ti.
PAGE 31
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.