TPS62290-Q1_16 Datasheet, PDF (1/27 Pages) Texas Instruments – 1-A Step Down Converter in 2-mm × 2-mm SON Package

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TPS62290-Q1, TPS62293-Q1
SLVSAI5B – SEPTEMBER 2010 – REVISED JUNE 2016
TPS6229x-Q1 1-A Step Down Converter in 2-mm × 2-mm SON Package
1 Features
•1 Qualified for Automotive Applications
• High Efficiency Step-Down Converter
• Output Current up to 1000 mA
• V_IN Range From 2.3 V to 6 V
• 2.25-MHz Fixed Frequency Operation
• Power Save Mode at Light Load Currents
• Output Voltage Accuracy in PWM mode ±1.5%
• Fixed Output Voltage Options
• Typical 15-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Voltage Positioning at Light Loads
• Available in a 2-mm × 2-mm × 0.8-mm SON
Package
2 Applications
• Automotive Infotainment and Clusters
– Instrument Clusters
– Head Units and Displays
– Radios and Navigation
• Advanced Driver Assistance System (ADAS)
– Front Cameras
– Blind Spot Monitoring
– Lane Departure Warning
– Park Assist
• HEV/EV Onboard Charger
SPACE
Typical Application Schematic
V_(VIN) 2.7 V to 6.0 V
C_IN
10 mF
TPS62290DRV
VIN
SW
EN
GND
FB
MODE
L1
2.2 mH
R₁
360 kW
R₂
180 kW
V_OUT 1.8 V,
1000 mA
C₁
22 pF
C_OUT
10 mF
Copyright © 2016, Texas Instruments Incorporated
3 Description
The TPS6229x-Q1 is a highly efficient synchronous
step-down buck converter optimized for automotive
low input voltage applications, and provides up to
1000-mA output current..
With an input voltage range of 2.3 V to 6 V, and an
output voltage accuracy of 1.5%, the device powers a
large variety of automotive applications.
The TPS6229x-Q1 operates at 2.25-MHz fixed
switching frequency and enters Power Save Mode
operation with typical quiescent current of 15 µA at
light load currents to maintain a high efficiency over
the entire load current range.
The Power Save Mode is optimized for low output
voltage ripple. For low noise applications, the device
can be forced into fixed frequency PWM mode by
pulling the MODE pin high. In the shutdown mode,
the current consumption is reduced to less than 1 µA.
The TPS6229x-Q1 allows the use of small inductors
and capacitors to achieve a small solution size.
The TPS6229x-Q1 is available in a 2-mm × 2-mm
6-pin SON package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6229x-Q1
SON (6)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Efficiency vs Output Current
100
V_IN = 4.2 V
90
80
V_IN = 3.8 V
V_IN = 5 V
70
V_IN = 4.5 V
60
50
V_OUT = 3.3 V,
MODE = GND,
L = 2.2 mH
40
30
0.00001 0.0001 0.001 0.01 0.1
1
I_O - Output Current - A
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.