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TPS626751 Datasheet Preview

TPS626751 Datasheet

6-MHz High-Efficiency Step-Down Converter

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TPS62671, TPS62672, TPS62674
TPS62675, TPS626751, TPS626765, TPS62679
SLVS952G – APRIL 2010 – REVISED JANUARY 2017
TPS6267x 500-mA/650-mA, 6-MHz High-Efficiency Step-Down Converter
in Low Profile Chip Scale Packaging (Height < 0.4mm)
1 Features
1 92% Efficiency at 6MHz Operation
• 17μA Quiescent Current
• Wide VIN Range From 2.3V to 4.8V
• 6MHz Regulated Frequency Operation
• Spread Spectrum, PWM Frequency Dithering
Best in Class Load and Line Transient
• ±2% Total DC Voltage Accuracy
• Low Ripple Light-Load PFM Mode
35dB VIN PSRR (1kHz to 10kHz)
• Simple Logic Enable Inputs
• Supports External Clock Presence Detect Enable
Input
• Three Surface-Mount External Components
Required (One 0603 MLCC Inductor, Two 0402
Ceramic Capacitors)
• Complete Sub 0.33-mm Component Profile
Solution
• Total Solution Size <10 mm2
• Available in a 6-Pin NanoFree™ (CSP)
Ultra-Thin Packaging, 0.4 mm Max. Height
2 Applications
• Cell Phones, Smart-Phones
• CMOS Camera Module, Optical Data Module
• Digital TV, WLAN, GPS and Bluetooth™
Applications
• Embedded Power Supply
3 Description
The TPS6267x devices are high-frequency
synchronous step-down dc-dc converters optimized
for small battery-powered applications. Intended for
low-power applications, the TPS6267x supports up to
650-mA load current and allows the use of low cost
chip inductor and capacitors.
With a wide input voltage range of 2.3V to 4.8V, the
device supports applications powered by Li-Ion
batteries with extended voltage range. Different fixed
voltage output versions are available from 1.05V to
2.1V. The TPS6267x operates at a regulated 6-MHz
switching frequency and enters the power-save mode
operation at light load currents to maintain high
efficiency over the entire load current range.
The PFM mode extends the battery life by reducing
the quiescent current to 17μA (typ) during light load
operation. For noise-sensitive applications, the device
has PWM spread spectrum capability providing a
lower noise regulated output, as well as low noise at
the input. These features, combined with high PSRR
and AC load regulation performance, make this
device suitable to replace a linear regulator to obtain
better power conversion efficiency.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS62671,
TPS62672,
TPS62674,
TPS62675,
TPS626751,
TPS626765
DSBGA (6)
1.22mm x 0.85mm
TPS62679
PicoStar (6)
1.22mm x 0.85mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
VBAT
2.3 V .. 4.8 V
TPS62671
VIN
L
SW
0.47 mH
CI
2.2 mF
EN
GND
FB
MODE
VOUT
1.8 V @ 500mA
CO
4.7 mF
1
Efficiency vs Output Current
100
VI = 3.6 V,
90 VO = 1.8 V
80 Efficiency
PFM/PWM Operation
70
60
50
40
30 Power Loss
PFM/PWM Operation
20
10
0
0.1 1
10 100
IO - Load Current - mA
150
135
120
105
90
75
60
45
30
15
0
1000
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

TPS626751 Datasheet Preview

TPS626751 Datasheet

6-MHz High-Efficiency Step-Down Converter

No Preview Available !

TPS62671, TPS62672, TPS62674
TPS62675, TPS626751, TPS626765, TPS62679
SLVS952G – APRIL 2010 – REVISED JANUARY 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Simplified Schematic............................................. 1
5 Revision History..................................................... 2
6 Device Comparison Table..................................... 4
7 Pin Configuration and Functions ......................... 4
8 Specifications......................................................... 5
8.1 Absolute Maximum Ratings ...................................... 5
8.2 Handling Ratings....................................................... 5
8.3 Recommended Operating Conditions....................... 5
8.4 Thermal Information .................................................. 5
8.5 Electrical Characteristics........................................... 6
8.6 Typical Characteristics .............................................. 9
9 Parameter Measurement Information ................ 13
10 Detailed Description ........................................... 14
10.1 Overview ............................................................... 14
10.2 Functional Block Diagram ..................................... 14
10.3 Feature Description............................................... 15
10.4 Device Functional Modes...................................... 17
11 Application and Implementation........................ 19
11.1 Application Information.......................................... 19
11.2 Typical Applications .............................................. 19
12 Power Supply Recommendations ..................... 26
13 Layout................................................................... 27
13.1 Layout Guidelines ................................................. 27
13.2 Layout Example .................................................... 27
14 Device and Documentation Support ................. 28
14.1 Device Support .................................................... 28
14.2 Documentation Support ....................................... 28
14.3 Related Links ........................................................ 28
14.4 Trademarks ........................................................... 28
14.5 Electrostatic Discharge Caution ............................ 28
14.6 Glossary ................................................................ 28
15 Mechanical, Packaging, and Orderable
Information ........................................................... 29
5 Revision History
Changes from Revision F (June 2014) to Revision G
Page
• Changed status from Product Mix to Production Data .......................................................................................................... 1
• TPS62672 released to Production ......................................................................................................................................... 4
Changes from Revision E (April 2010) to Revision F
Page
• Added Device Information table and included device TPS626765 ........................................................................................ 1
• Deleted the Ordering Information table and replaced with the Device Comparison Table; Ordering Info is in the POA ...... 4
• Changed "Terminal" to "Pin" in 3 places ............................................................................................................................... 4
• Changed the notes in the Handling Ratings table and added values in the MIN column ..................................................... 5
• Added column in Thermal Information table for the TPS60679 device and changed "TERMINALS" to "PINS" .................. 5
• Added TIMING row to the Electrical Characteristics table .................................................................................................... 8
• Changed formatting of Typical Characteristics section to 6 graphs per page. ...................................................................... 9
• Added the 3rd-party products disclaimer.............................................................................................................................. 28
• Changed the location of References from Applications to Related Documentation ........................................................... 28
Changes from Revision D (July 2011) to Revision E
Page
• Added device TPS626751 to Ordering Info table................................................................................................................... 4
• Added Preview devices TPS62673, TPS62676 to Ordering Info table. ................................................................................. 4
Changes from Revision C (April 2011) to Revision D
Page
• Changed from "600-mA" to "650-mA" in document title ......................................................................................................... 1
• Changed description text from "600-mA" to "650-mA" load current. ...................................................................................... 1
• Changed IO specification for TPS62675 from "600 mA" MAX to "650 mA "........................................................................... 5
• Changed VOUT specification Condition statement from "600 mA" to "650 mA" for TPS62675 .............................................. 8
2 Submit Documentation Feedback
Copyright © 2010–2017, Texas Instruments Incorporated
Product Folder Links: TPS62671 TPS62672 TPS62674 TPS62675 TPS626751 TPS626765 TPS62679


Part Number TPS626751
Description 6-MHz High-Efficiency Step-Down Converter
Maker etcTI
Total Page 30 Pages
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