TLV62568P Converter Datasheet

TLV62568P Datasheet PDF, Equivalent


Part Number

TLV62568P

Description

1-A High Efficiency Synchronous Buck Converter

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TLV62568P
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TLV62568, TLV62568P
SLVSD89B – NOVEMBER 2016 – REVISED NOVEMBER 2017
TLV62568 1-A High Efficiency Synchronous Buck Converter in SOT Package
1 Features
1 Up to 95% Efficiency
• Low RDS(ON) Switches 150 mΩ / 100 mΩ
• 2.5-V to 5.5-V Input Voltage Range
• Adjustable Output Voltage from 0.6 V to VIN
• Power Save Mode for Light Load Efficiency
• 100% Duty Cycle for Lowest Dropout
• 35-µA Operating Quiescent Current
• 1.5-MHz Switching Frequency
• Power Good Output
• Over Current Protection
• Internal Soft Startup
• Thermal Shutdown Protection
• Available in SOT Package
• Pin-to-Pin Compatible with TLV62569
• Create a Custom Design Using the TLV62568
With the WEBENCH® Power Designer
2 Applications
• General Purpose POL Supply
• Network Video Camera
• Set Top Box
• Wireless Router
3 Description
The TLV62568 device is a synchronous step-down
buck DC-DC converter optimized for high efficiency
and compact solution size. The device integrates
switches capable of delivering an output current up to
1 A.
SPACER
Simplified Schematic
VIN
2.5 V to 5.5 V
R3
499 k
VPG
C1
4.7 µF
TLV62568P
VIN SW
L1
2.2 µH
EN
PG GND FB
VOUT
1.8 V / 1.0 A
C2
10 µF
R1
200 k
C3*
C3: Optional
R2
100 k
Copyright Ú 2016, Texas Instruments Incorporated
At medium to heavy loads, the device operates in
pulse width modulation (PWM) mode with 1.5-MHz
switching frequency. At light load, the device
automatically enters Power Save Mode (PSM) to
maintain high efficiency over the entire load current
range. In shutdown, the current consumption is
reduced to less than 2 μA.
The TLV62568 provides an adjustable output voltage
via an external resistor divider. An internal soft start
circuit limits the inrush current during startup. Other
features like over current protection, thermal
shutdown protection and power good are built-in. The
device is available in a SOT23 and SOT563 package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV62568
TLV62568P
SOT-23 (5)
SOT-23 (6)
2.90 mm × 2.80 mm
TLV62568
TLV62568P
SOT563 (6)
SOT563 (6)
1.60 mm x 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Device Comparison
PART NUMBER
FUNCTION
TLV62568DBV
TLV62568PDDC
TLV62568DRL
TLV62568PDRL
-
Power Good
-
Power Good
PACKAGE
MARKING
14VF
9X
18L
18N
Efficiency at 5-V Input Voltage
100
95
90
85
80
75
70 VOUT = 1.2 V
VOUT = 1.8 V
65 VOUT = 2.5 V
VOUT = 3.3 V
60
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Load (A)
D008
1
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.

TLV62568P
TLV62568, TLV62568P
SLVSD89B – NOVEMBER 2016 – REVISED NOVEMBER 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions ...................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics.......................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 7
7.4 Device Functional Modes.......................................... 8
8 Application and Implementation .......................... 9
8.1 Application Information.............................................. 9
8.2 Typical Application .................................................... 9
9 Power Supply Recommendations...................... 14
10 Layout................................................................... 15
10.1 Layout Guidelines ................................................. 15
10.2 Layout Example .................................................... 15
10.3 Thermal Considerations ........................................ 15
11 Device and Documentation Support ................. 16
11.1 Device Support .................................................... 16
11.2 Documentation Support ....................................... 16
11.3 Receiving Notification of Documentation Updates 16
11.4 Community Resources.......................................... 16
11.5 Trademarks ........................................................... 16
11.6 Electrostatic Discharge Caution ............................ 17
11.7 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
Changes from Revision A (April 2017) to Revision B
Page
• Added WEBENCH links to data sheet.................................................................................................................................... 1
• Changed TLV62568PDDC to production status..................................................................................................................... 1
• Added DDC package thermal information. ............................................................................................................................. 4
• Changed 1.2 V From: MIN value To: MAX value for High-level threshold at EN pin............................................................. 5
Changes from Original (November 2016) to Revision A
Page
• Changed TLV62568DRL and TLV62568PDRL to production status. .................................................................................... 1
• Moved Device Comparison table to page 1 .......................................................................................................................... 1
• Added DRL package thermal information............................................................................................................................... 4
• Added startup time of TLV62568DRL, TLV62568PDRL ....................................................................................................... 5
• Added TLV62568PDRL layout. ............................................................................................................................................ 15
2 Submit Documentation Feedback
Product Folder Links: TLV62568
Copyright © 2016–2017, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TLV62568, TLV62568P SLVSD89B NOVEMBER 2016 – REVISED NOVEMBER 20 17 TLV62568 1-A High Efficiency Synchro nous Buck Converter in SOT Package 1 F eatures •1 Up to 95% Efficiency • L ow RDS(ON) Switches 150 mΩ / 100 mΩ 2.5-V to 5.5-V Input Voltage Range Adjustable Output Voltage from 0.6 V to VIN • Power Save Mode for Light L oad Efficiency • 100% Duty Cycle for Lowest Dropout • 35-µA Operating Qui escent Current • 1.5-MHz Switching Fr equency • Power Good Output • Over Current Protection • Internal Soft St artup • Thermal Shutdown Protection Available in SOT Package • Pin-to- Pin Compatible with TLV62569 • Create a Custom Design Using the TLV62568 Wit h the WEBENCH® Power Designer 2 Appli cations • General Purpose POL Supply • Network Video Camera • Set Top Bo x • Wireless Router 3 Description Th e TLV62568 device is a synchronous step-down buck DC-DC converter optimized for high efficiency and compact s.
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