TPS61230A Datasheet, PDF (1/28 Pages) Texas Instruments – TPS61230A 5-V / 6-A High Efficiency Step-Up Converter in 2.0-mm x 2.0-mm VQFN Package

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TPS61230A
SLVSCZ5A – JULY 2016 – REVISED AUGUST 2016
TPS61230A 5-V / 6-A High Efficiency Step-Up Converter in 2.0-mm x 2.0-mm VQFN
Package
1 Features
•1 Input Voltage Range: 2.5 V to 4.5 V
• Output Voltage Range: 2.5 V to 5.5 V
• Two 21-mΩ (LS) / 18-mΩ (HS) MOSFETs
• 20-µA Quiescent Current
• 6-A Valley Switching Current Limit
• 1.15-MHz Quasi-Constant Switching Frequency
• PFM Operation at the Light Load
• 1.05-ms Soft Start Time
• True Load Disconnect
• NOT Support Vin > Vout Operation
• Output Short Protection
• Over Voltage Protection
• Thermal Shutdown
• 2.0-mm x 2.0-mm VQFN 7-Pin Package
2 Applications
• Power Banks, Battery Backup Units
• USB Power Supply
• Tablet PCs
• Audio Power Amplifier
• Battery Powered Products
3 Description
The TPS61230A device is a high efficiency fully
integrated synchronous boost converter. It integrates
6-A, 21-mΩ and 18-mΩ power switches, which is
capable of delivering up to 2.4-A output current at 5-V
output with the 2.5-V input supply. The low R_{DS_ON}
switches enable the power conversion efficiency up to
96% and minimize the thermal stress in very compact
solution size.
The typical operating frequency is 1.15 MHz, which
allows the use of small inductor and capacitors to
achieve a small solution size. The TPS61230A
provides an adjustable output voltage via an external
resistor divider.
During the light load condition, the TPS61230A
automatically enters into the PFM operation for
maximizing the efficiency with the lowest quiescent
current. In the shutdown by pulling EN pin to the logic
low, the load is completely disconnected from the
input, and the input current consumption is reduced
to below 1.0 μA.
When the output is shorted, the device enters into the
hiccup protection mode and recovery automatically
when the output short is released. Other features like
the output over voltage protection, thermal shutdown
protection are integrated.
The device is available in a 2.00-mm x 2.00-mm x
0.9-mm VQFN package and requires the minimum
amount of external components.
Device Information
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61230A
VQFN (7)
2.00 mm x 2.00 mm
Typical Application
L
1uH
SW
VOUT
C3
TPS61230A
R1
VOUT
5V/2.4A
10nF
VIN
CBST
316kŸ
C2
FB
2x22 uF
VIN
C1
10 uF
R2
100kŸ
ON
EN
OFF
GND
Copyright © 2016, Texas Instruments Incorporated
space
100
90
80
70
60
50
40
0.0001
Efficiency
0.001
0.01
0.1
Load (A)
V_IN = 3.0 V
V_IN = 3.6 V
V_IN = 4.3 V
13
D001
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.