TPS62134A Datasheet, PDF (1/27 Pages) Texas Instruments – TPS62134x, 17-V Input, Step-down Converter With Low-Power Mode Input for Intel Skylake Platform

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TPS62134A, TPS62134B, TPS62134C, TPS62134D
SLVSC20D – JANUARY 2015 – REVISED MAY 2015
TPS62134x, 17-V Input, Step-down Converter With Low-Power Mode Input for Intel
Skylake Platform
1 Features
•1 DCS-Control™ Architecture
• Supports Low-Power Mode for System Standby
Mode
• Power Save Mode for Light Load Efficiency
• Selectable Fixed Output Voltage (0.7 V to 1.05 V)
• Low Power Mode Logic Input
• Quiescent Current of 20 µA
• Input Voltage Range: 3 V to 17 V
• Output Current: up to 3.2 A
• Programmable Soft Start
• Power Good Output
• Short Circuit Protection
• Single-ended Remote Sense
• Thermal Shutdown Protection
• Available in a 3-mm × 3-mm, VQFN-16 Package
2 Applications
• Intel Skylake™ Platform Ultrabook, Notebook, PC
• Standard 12-V Rail Supply
• POL Supply from 1 to 4 Cells Li-Ion Battery
• Solid-State Disk Drive
• Embedded System
3 Description
The TPS62134x family of devices is an easy-to-use,
synchronous step-down DC-DC converter, compatible
with Intel Skylake platform applications such as
Ultrabooks™ and notebooks. The high performance
DCS-Control™ architecture provides fast transient
response as well as high output voltage accuracy.
With a wide operating input-voltage range of 3 to 17
V, the devices are ideally suited for systems powered
from either a Li-Ion or other batteries as well as from
12-V intermediate power rails. The devices have a
low-power mode where the output voltage is reduced
by using the LPM pin. In addition, the devices support
dynamic output-voltage change by using the VIDx
pins. The LPM and VIDx pins help the system
minimize power consumption in different operating
modes.
The output-voltage startup ramp is controlled by the
SS pin. The power sequencing is configurable by the
enable (EN) and power good (PG) pins. In power-
save mode, the devices show quiescent current of
approximately 20 μA which maintains high efficiency
over the entire load range. Short circuit protection
and thermal shutdown protect the IC and external
components from heavy current when the output is
shorted to ground. The device is available in a 3-mm
× 3-mm 16-pin VQFN package with thermal pad.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS62134A
TPS62134B
TPS62134C
VQFN
3.00mm x 3.00mm
TPS62134D
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Typical Application Circuit
V_I
3 to 17 V _C1
22 µF
Host
TPS62134A
PVIN
AVIN
EN
VID0
VID1
LPM
SW
VOS
FBS
PG
L1
1 µH
V_O
C2 ^{0.95 V, 3 A}
47 µF
V_DD
R3
499 kΩ
V_(PG)
C3
470 pF
SS
AGND
PGND
1
TPS62134A Efficiency
100
90
80
70
60
50
40
0.001
VO = 0.95 V
0.01 0.02 0.05 0.1 0.2
Load (A)
VI = 5 V
VI = 6 V
VI = 7.2 V
VI = 8.4 V
VI = 10.8 V
VI = 12 V
0.5 1
2 3 45
D002
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.