TPS63036_15 Datasheet, PDF (1/22 Pages) Texas Instruments – TPS63036 High-Efficiency Single Inductor Buck-Boost Converter in Tiny WCSP

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TPS63036
SLVSB76A – AUGUST 2012 – REVISED OCTOBER 2015
TPS63036 High-Efficiency Single Inductor Buck-Boost Converter in Tiny WCSP
1 Features
•1 Input Voltage Range: 1.8 V to 5.5 V
• Real Buck or Boost Operation
• Adjustable and Fixed Output Voltage Version
• Up to 94% Efficiency
• Device Quiescent Current Less than 50 μA
• Fixed and Adjustable Output Voltage Options
• Power-Save Mode for Improved Efficiency at Low-
Output Power
• Forced Fixed-Frequency Operation and
Synchronization Possible
• Load Disconnect During Shutdown
• Overtemperature Protection
• Available in a Small 1.854 mm × 1.076 mm, 8-Pin
WCSP Package
2 Applications
• All Two-Cell and Three-Cell Alkaline, NiCd or
NiMH or Single-Cell Li Battery-Powered Products
• Portable Audio Players
• Mobile Phones, Smart Phones
• Personal Medical Products
• White LEDs
3 Description
The TPS63036 is a non-inverting buck-boost
converter able to provide a regulated output voltage
from an input supply that can be higher or lower than
the output voltage. The buck-boost converter is based
on a fixed-frequency, pulse width modulation (PWM)
controller using synchronous rectification to obtain
maximum efficiency. At low load currents, the
converter enters power-save mode to maintain high
efficiency over a wide load current range. The power-
save mode can be disabled, forcing the converter to
operate at a fixed switching frequency. The maximum
average current in the switches is limited to a typical
value of 1000 mA. The output voltage is
programmable using an external resistor divider. The
converter can be disabled to minimize battery drain.
During shutdown, the load is disconnected from the
battery.
The device is available in a 8-pin WCSP package
measuring 1.854 mm × 1.076 mm (YFG).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS63036
WCSP (8)
1.854 mm × 1.076 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
V_IN
1.8 V to 5.5 V
C₁
10µF
Typical Application Schematic
L₁
1.5µH
L1
L2
VIN
VOUT
EN
PS/SYNC ^FB
GND
TPS63036
R₁
287kΩ
R₂
51.1kΩ
V_OUT
3.3V/600mA
C₂
3X10µF
Efficiency vs Output Current
100
VI = 2.7 V
90
TA = 25°C
80
VI = 3.3 V
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
IO – Output Current – mA
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.