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Step-Down Converter. TPS628601 Datasheet

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Step-Down Converter. TPS628601 Datasheet






TPS628601 Converter. Datasheet pdf. Equivalent




TPS628601 Converter. Datasheet pdf. Equivalent





Part

TPS628601

Description

0.6-/1-A Synchronous Step-Down Converter



Feature


TPS62860, TPS62861 SLUSDU8B – SEPTEMBE R 2019 – REVISED SEPTEMBER 2020 1.8-V to 5.5-V Input, 0.6-/1-A Synchronous S tep-Down Converter with I2C/VSEL Interf ace 1 Features • 2.3-μA operating q uiescent current • Up to 4-MHz switch ing frequency • 1% output voltage acc uracy • DVS output from 0.4 V to 1.98 75 V (12.5-mV steps) • I2C user inter face to adjust – Output voltage p.
Manufacture

Texas Instruments

Datasheet
Download TPS628601 Datasheet


Texas Instruments TPS628601

TPS628601; resets – Ramp speed • VSEL-pin to to ggle VOUT during operation • Power go od indication • Supports <6-mm² solu tion size • Supports <0.6-mm solution height • Tiny 8-pin, 0.35-mm pitch W CSP package • Optimized pinout to sup port 0201 components 2 Applications • Wearable electronics • Portable elec tronics • Mobile phones • Medical s ensor patches and patient monitors VIN 1.


Texas Instruments TPS628601

.8V t 5.5V 4.7 F TPS628610 VIN SW GN D VOS 0.47µH EN SDA VSEL SCL VO UT 10 F VIN 1.8V t 5.5V 4.7 F TPS6286 01 VIN SW GND VOS 1.0µH EN VSEL -1 PG VSEL-2 Typical Application VO UT 10 F Efficiency [%] 3 Description The TPS6286x devices are high-frequenc y synchronous step-down converters with I2C- and VSEL-Interface. They provide an efficient, flexib.


Texas Instruments TPS628601

le, and high-power density point-of-load DC/DC solution. At medium to heavy loa ds, the converter operates in PWM mode and automatically enters Power Save Mod e operation at light load to maintain h igh efficiency over the entire load cur rent range. The device can also be forc ed in PWM mode operation for the smalle st output voltage ripple. Together, wit h its DCS-control .

Part

TPS628601

Description

0.6-/1-A Synchronous Step-Down Converter



Feature


TPS62860, TPS62861 SLUSDU8B – SEPTEMBE R 2019 – REVISED SEPTEMBER 2020 1.8-V to 5.5-V Input, 0.6-/1-A Synchronous S tep-Down Converter with I2C/VSEL Interf ace 1 Features • 2.3-μA operating q uiescent current • Up to 4-MHz switch ing frequency • 1% output voltage acc uracy • DVS output from 0.4 V to 1.98 75 V (12.5-mV steps) • I2C user inter face to adjust – Output voltage p.
Manufacture

Texas Instruments

Datasheet
Download TPS628601 Datasheet




 TPS628601
TPS62860, TPS62861
SLUSDU8B – SEPTEMBER 2019 – REVISED SEPTEMBER 2020
1.8-V to 5.5-V Input, 0.6-/1-A Synchronous Step-Down Converter with I2C/VSEL
Interface
1 Features
• 2.3-μA operating quiescent current
• Up to 4-MHz switching frequency
• 1% output voltage accuracy
• DVS output from 0.4 V to 1.9875 V (12.5-mV
steps)
• I2C user interface to adjust
– Output voltage presets
– Ramp speed
• VSEL-pin to toggle VOUT during operation
• Power good indication
• Supports <6-mm² solution size
• Supports <0.6-mm solution height
• Tiny 8-pin, 0.35-mm pitch WCSP package
• Optimized pinout to support 0201 components
2 Applications
Wearable electronics
Portable electronics
Mobile phones
Medical sensor patches and patient monitors
VIN
1.8V t 5.5V
4.7 F
TPS628610
VIN
SW
GND
VOS
0.47µH
EN
SDA
VSEL
SCL
VOUT
10 F
VIN
1.8V t 5.5V
4.7 F
TPS628601
VIN
SW
GND
VOS
1.0µH
EN
VSEL-1
PG
VSEL-2
Typical Application
VOUT
10 F
3 Description
The TPS6286x devices are high-frequency
synchronous step-down converters with I2C- and
VSEL-Interface. They provide an efficient, flexible,
and high-power density point-of-load DC/DC solution.
At medium to heavy loads, the converter operates
in PWM mode and automatically enters Power
Save Mode operation at light load to maintain high
efficiency over the entire load current range. The
device can also be forced in PWM mode operation
for the smallest output voltage ripple. Together, with
its DCS-control architecture, excellent load transient
performance and tight output voltage accuracy are
achieved. With the I2C interface and a dedicated
VSEL pin, the output voltage is quickly adjusted to
adapt the power consumption of the load to the ever-
changing performance needs of the application. The
TPS6286x family is available with two VSEL pins and
four factory preset voltages to allow usage without I2C
interface.
PART
NUMBER
TPS628610
TPS628601
TPS628600
Device Information
CURRENT PACKAGE(1) BODY SIZE (NOM)
1A
0.6 A
0.6 A
DSBGA (8)
DSBGA (8)
DSBGA (8)
0.7 x 1.4 x 0.4 mm
0.7 x 1.4 x 0.4 mm
0.7 x 1.4 x 0.4 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
100
95
90
85
80
75
70
65
60
55
50
45
40
10P
100P
1m
10m
Load Current [A]
TPS628601
TPS628610
100m
1
Efficiency versus IOUT at 1.1 VOUT, 3.8 VIN
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.




 TPS628601
TPS62860, TPS62861
SLUSDU8B – SEPTEMBER 2019 – REVISED SEPTEMBER 2020
www.ti.com
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Device Comparison Table...............................................3
6 Pin Configuration and Functions...................................3
Pin Functions, TPS628610 and TPS628600.................... 3
Pin Functions, TPS628601............................................... 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 I2C Interface Timing Characteristics ......................... 7
7.7 Typical Characteristics................................................ 9
8 Detailed Description......................................................10
8.1 Overview................................................................... 10
8.2 Functional Block Diagram......................................... 10
8.3 Feature Description...................................................11
8.4 Programming............................................................ 14
8.5 Register Map.............................................................17
9 Application and Implementation.................................. 20
9.1 Application Information............................................. 20
9.2 Typical Application, TPS628610............................... 20
10 Power Supply Recommendations..............................28
11 Layout........................................................................... 29
11.1 Layout Guidelines................................................... 29
11.2 Layout Example...................................................... 29
12 Device and Documentation Support..........................30
12.1 Device Support....................................................... 30
12.2 Receiving Notification of Documentation Updates..30
12.3 Support Resources................................................. 30
12.4 Trademarks............................................................. 30
12.5 Electrostatic Discharge Caution..............................30
12.6 Glossary..................................................................30
13 Mechanical, Packaging, and Orderable
Information.................................................................... 31
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (August 2020) to Revision B (September 2020)
Page
• Changed device status of TPS62860 from Advance Information to Production Data ....................................... 1
• Added "DVS output from 0.4 V to 1.9875 V (12.5-mV steps)" feature................................................................1
• Updated value from 0x8E and 0x8F to 0x7E and 0x7F.................................................................................... 17
• Updated value from 0x8E and 0x8F to 0x7E and 0x7F.................................................................................... 18
Changes from Revision * (April 2020) to Revision A (August 2020)
Page
• Changed device status of TPS62861 from Advance Information to Production Data........................................ 1
• Updated the numbering format for tables, figures and cross-references throughout the document. .................1
2
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Product Folder Links: TPS62860 TPS62861
Copyright © 2021 Texas Instruments Incorporated




 TPS628601
www.ti.com
5 Device Comparison Table
ORDERABLE PART NUMBER OUTPUT CURRENT
TPS628600YCH
0.6 A
TPS628601YCH
0.6 A
TPS628610YCH
1A
TPS62860, TPS62861
SLUSDU8B – SEPTEMBER 2019 – REVISED SEPTEMBER 2020
DEFAULT VO SETTING
0.6 V, 1.1 V
0.6 V, 0.7 V, 0.8 V, 1.0 V
0.6 V, 1.1 V
FSW
1.5 MHz
1.5 MHz
4 MHz
USER INTERFACE
EN, I2C, VSEL
2x VSEL, EN, PG
EN, I2C, VSEL
6 Pin Configuration and Functions
1
2
A
B
C
D
Figure 6-1. 8-Pin DSBGA YCH Package (Top View)
Pin Functions, TPS628610 and TPS628600
NAME
GND
VOS
VIN
SW
VSEL
EN
SDA
SCL
PIN
NO.
D2
D1
C2
C1
B2
B1
A2
A1
I/O
PWR
IN
PWR
PWR
IN
IN
IN
IN
DESCRIPTION
GND supply pin. Connect this pin close to the GND terminal of the input and output
capacitor.
Output voltage sense pin for the internal feedback divider network and regulation loop. This
pin also discharges VOUT by an internal MOSFET when the converter is disabled. Connect
this pin directly to the output capacitor with a short trace.
VIN power supply pin. Connect the input capacitor close to this pin for best noise and voltage
spike suppression. A ceramic capacitor is required.
The switch pin is connected to the internal MOSFET switches. Connect the inductor to this
terminal.
Voltage Selection Pin. Can be toggled during operation. LOW = 0.6 V, HIGH = 1.1 V
A high level enables the devices and a low level turns the device off. The pin features an
internal pulldown resistor, which is disabled once the device has started up.
I2C serial data pin. Do not leave floating.
I2C serial clock pin. Do not leave floating.
Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: TPS62860 TPS62861
Submit Document Feedback
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