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TPS610987 Datasheet Preview

TPS610987 Datasheet

Ultra-Low Quiescent Current Synchronous Boost

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TPS61098, TPS610981
TPS610982, TPS610985, TPS610986, TPS610987
SLVS873D – JUNE 2015 – REVISED APRIL 2016
TPS61098x Ultra-Low Quiescent Current Synchronous Boost with Integrated LDO/Load
Switch
1 Features
1 300 nA Ultra-Low IQ in Low Power mode
• Startup into Load at 0.7 V Input Voltage
• Operating Input Voltage from 0.7 V to 4.5 V
• Selectable Output Voltages Up to 4.3 V
• Minimum 350 mA Switch Peak Current Limit
• Integrated LDO/Load Switch
• Two Modes Controlled by MODE Pin
– Active Mode: Dual Outputs at Set Values
– Low Power Mode: LDO/Load Switch Off; Boost
Keeps On
• Automatic Pass-Through
• Up to 88% Efficiency at 10 µA Load from 2 V to
3.3 V Conversion (Low Power Mode)
• Up to 93% Efficiency at 5 mA ~ 100 mA Load
from 2 V to 3.3 V Conversion
• 1.5 mm x 1.5 mm WSON Package
2 Applications
• Smart Remote Control
• BLE Tag
• Wearable Applications
• Low Power Wireless Applications
• Portable Consumer or Medical Products
• Single Coin Cell, Single or Two-Cell Alkaline
Powered Applications
3 Description
The TPS61098x is an ultra low power solution for
products powered by either a one-cell or two-cell
alkaline, NiCd or NiMH, one-cell coin cell or one-cell
Li-Ion or Li-polymer battery. It integrates either a Low-
dropout Linear Regulator (LDO) or a load switch with
a boost converter and provides two output rails. The
boost output V(MAIN) is designed as an always-on
supply for a main system, and the LDO or load switch
output V(SUB) is to power peripheral devices.
The TPS61098x has two modes controlled by MODE
pin: Active mode and Low Power mode. In Active
mode, both outputs are enabled with enhanced
response performance. In Low Power mode, the LDO
or load switch is disabled to disconnect peripherals.
The TPS61098x consumes only 300 nA quiescent
current and can achieve up to 88% efficiency at
10 µA load in Low Power mode.
The TPS61098x supports automatic pass-through
function. When input voltage is higher than a pass-
through threshold, the boost converter stops
switching and passes the input voltage to VMAIN rail;
when input voltage is lower than the threshold, the
boost works in boost mode and regulates output at
the target value. The TPS61098x provides different
versions for different output set values.
The TPS61098x can provide up to 50 mA total output
current at 0.7 V input to 3.3 V output conversion. The
boost is based on a hysteretic controller topology
using synchronous rectifier to obtain maximum
efficiency at minimal quiescent current.
The TPS61098x is available in 1.5 mm x 1.5 mm
WSON package to enable small circuit layout size.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61098x
6 pin WSON
1.50 mm x 1.50 mm
(1) For all available packages, see the orderable addendum at
the end of this document.
0.7 V to 4.5 V
CBAT
10µ F
Simplified Schematic
L
4.7µ H
SW
RIN
400
VIN
CIN
0.1µ F
MODE
BOOST
CTRL
LDO / LS
CTRL
VMAIN
VSUB
GND
CO1
10µ F
CO2
10µ F
Copyright © 2016, Texas Instruments Incorporated
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.




etcTI

TPS610987 Datasheet Preview

TPS610987 Datasheet

Ultra-Low Quiescent Current Synchronous Boost

No Preview Available !

TPS61098, TPS610981
TPS610982, TPS610985, TPS610986, TPS610987
SLVS873D – JUNE 2015 – REVISED APRIL 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 4
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Typical Characteristics .............................................. 8
8 Detailed Description ............................................ 17
8.1 Overview ................................................................. 17
8.2 Functional Block Diagrams ..................................... 17
8.3 Feature Description................................................. 18
8.4 Device Functional Modes........................................ 20
9 Applications and Implementation ...................... 22
9.1 Application Information............................................ 22
9.2 Typical Applications ................................................ 22
10 Power Supply Recommendations ..................... 34
11 Layout................................................................... 35
11.1 Layout Guidelines ................................................. 35
11.2 Layout Example .................................................... 35
12 Device and Documentation Support ................. 36
12.1 Device Support...................................................... 36
12.2 Documentation Support ........................................ 36
12.3 Related Links ........................................................ 36
12.4 Community Resources.......................................... 36
12.5 Trademarks ........................................................... 36
12.6 Electrostatic Discharge Caution ............................ 36
12.7 Glossary ................................................................ 36
13 Mechanical, Packaging, and Orderable
Information ........................................................... 37
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (December 2015) to Revision D
Page
• Added device TPS610987 ..................................................................................................................................................... 1
• Added TPS610987DSE in the Device Comparison Table. .................................................................................................... 4
• Added TPS610987 device to Electrical Characteristics table. .............................................................................................. 6
• Changed devices listed in the Conditions notes From:: TPS61098, '1, '5, '6 To: TPS61098, '1, '5, '6, '7 on graphs
affected by adding TPS610987 device. ................................................................................................................................. 8
• Changed devices listed in the Conditions note From:: TPS61098 To: TPS61098, '7 in Figure 18, and Figure 19 ............... 9
Changes from Revision B (July 2015) to Revision C
Page
• Added devices TPS610985 and TPS610986 to the data sheet............................................................................................. 1
• Removed "Product Preview from devices TPS610985DSE and TPS610986DSE in the Device Comparison Table............ 4
• Added RDS(on)_LS for device TPS610985 and TPS610986 in the Electrical Characteristics .................................................. 6
• Added RDS(on)_HS for device TPS610985 and TPS610986 in the Electrical Characteristics .................................................. 6
• Added R(LS) for device TPS610985 and TPS610986 in the Electrical Characteristics .......................................................... 6
• Added V(MAIN) for device TPS610985 and TPS610986 in the Electrical Characteristics ....................................................... 7
• Added V(PSTH) for device TPS610985 and TPS610986 in the Electrical Characteristics ...................................................... 7
• Changed devices listed in the Conditions notes From: TPS61098/TPS610981 To: TPS61098, '1, '5, '6 in Figure 1
and Figure 2 ........................................................................................................................................................................... 8
• Added Figure 13 to Figure 16 ................................................................................................................................................ 9
• Added Figure 24 to Figure 27............................................................................................................................................... 10
• Added Figure 34 to Figure 37............................................................................................................................................... 12
• Added Figure 47 to Figure 48............................................................................................................................................... 14
• Added a paragraph to the Capacitor Selection section: "For load switch version,..." ......................................................... 25
• Added Figure 65, Figure 66, and Figure 67 ........................................................................................................................ 26
• Added Figure 80 ................................................................................................................................................................... 29
2
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Copyright © 2015–2016, Texas Instruments Incorporated
Product Folder Links: TPS61098 TPS610981 TPS610982 TPS610985 TPS610986 TPS610987



Part Number TPS610987
Description Ultra-Low Quiescent Current Synchronous Boost
Maker etcTI
Total Page 3 Pages
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