TPS8268180_15 Datasheet, PDF (1/32 Pages) Texas Instruments – TPS8268x 1600-mA High-Efficiency MicroSiP Step-Down Converter Module

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TPS8268180, TPS8268150, TPS8268120, TPS8268105, TPS8268090
SLVSBR0C – OCTOBER 2014 – REVISED JUNE 2015
TPS8268x 1600-mA High-Efficiency MicroSiP™ Step-Down Converter Module
(Profile < 1.0mm)
1 Features
•1 Wide V_IN Range From 2.5V to 5.5V
• Total Solution Size < 6.7 mm²
• Sub 1-mm Profile Solution
• ±1.5% DC Voltage Accuracy
• Up to 1600-mA Load Current
• Up to 90% Efficiency
• Fixed Output Voltage:
– TPS8268180: 1.80V
– TPS8268150: 1.50V
– TPS8268120: 1.20V
– TPS8268105: 1.05V
– TPS8268090: 0.90V
• Low EMI by Spread Spectrum PWM Frequency
Dithering
• Best in Class Load and Line Transient Response
• Internal Soft Start
• Current Overload and Thermal Shutdown
Protection
2 Applications
• Optical Modules
• Cell Phones, Smart-Phones
• Solid State Disk Drive Applications
• Space constrained applications
3 Description
The TPS8268x device is a complete DC/DC step-
down power supply optimized for small solution size.
Included in the package are the switching regulator,
inductor and input/output capacitors. Integration of all
passive components enables a tiny solution size of
only 6.7mm².
.
Typical Application
TPS8268180SIP
V_BAT
C_I
MODE pin;
tie to VIN
ENABLE
DC/DC Converter
L
VIN
SW
MODE
EN
FB
GND
C_O
V_OUT
1.80V / up to 1.6A
The TPS8268x is based on a high-frequency
synchronous step-down dc-dc converter optimized for
battery-powered portable applications in which high
load currents in a very small solution size and height
are required. The TPS8268x is optimized for high
efficiency and low output voltage ripple and supports
up to 1600-mA load current. With an input voltage
range of 2.5-V to 5.5-V, the device supports
applications powered by Li-Ion batteries as well as 5-
V and 3.3-V rails.
The TPS8268x operates at a 5.5-MHz switching
frequency with spread spectrum capability. For noise-
sensitive applications, this provides a lower noise
regulated output, as well as low noise at the input.
The device supports a fixed output voltage, requiring
no external feedback network.
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 with the same size.
The TPS8268x is packaged in a compact (2.3mm x
2.9mm) and low profile BGA package suitable for
automated assembly by standard surface mount
equipment.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS8268180
µSIP
2.30 mm × 2.90 mm
TPS8268150
µSIP
2.30 mm × 2.90 mm
TPS8268120
µSIP
2.30 mm × 2.90 mm
TPS8268105
µSIP
2.30 mm × 2.90 mm
TPS8268090
µSIP
2.30 mm × 2.90 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Load Current for TPS8268180
100
90
80
70
60
50
40
30
20
10
0
0.0001
2.5 V
3V
3.6 V
4.2 V
5V
0.001
0.01
0.1
Iout (A)
1
C006
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.