TPS62065-Q1 Datasheet, PDF (1/29 Pages) Texas Instruments – TPS6206x-Q1 3-MHz 2-A Step-Down Converter in 2 SON Package

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TPS62065-Q1, TPS62067-Q1
SLVSCM3 – JANUARY 2015
TPS6206x-Q1 3-MHz 2-A Step-Down Converter in 2 × 2 SON Package
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Operating Junction Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4B
• 3-MHz Switching Frequency
• V_IN Range from 2.9 V to 6 V
• Up to 97% Efficiency
• Power Save Mode and 3-MHz Fixed PWM Mode
• Power Good Output
• Output Voltage Accuracy in PWM Mode ±1.5%
• Output Capacitor Discharge Function
• Typical 18-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Voltage Positioning
• Clock Dithering
• Supports Maximum 1-mm Height Solutions
• Available in a 2 × 2 × 0,75-mm WSON
2 Applications
• Point Of Load Regulator
• Automotive POL
• Automotive Camera Modules
• Car Infotainment and Navigation Systems
• ADAS Applications
3 Description
The TPS62065-Q1 and TPS62067-Q1 device is a
highly-efficient synchronous step-down DC-DC
converter. The device provides up to 2-A output
current.
With an input voltage range of 2.9 V to 6 V the device
is a perfect fit for power conversion from a 5-V or
3.3-V system supply rail. The TPS62065-Q1 and
TPS62067-Q1 device operates at 3-MHz fixed
frequency and enters power-save mode operation at
light load currents to maintain high efficiency over the
entire load current range. The power save mode is
optimized for low output-voltage ripple. For low noise
applications, the TPS62065-Q1 device can be forced
into fixed frequency PWM mode by pulling the MODE
pin high. The TPS62067-Q1 provides an open drain
power good output. In the shutdown mode, the
current consumption is reduced to 5 µA and an
internal circuit discharges the output capacitor. The
TPS62065-Q1 and TPS62067-Q1 device is optimized
for operation with a tiny 1-µH inductor and a small
10-µF output capacitor to achieve smallest solution
size and high regulation performance.
The TPS62065-Q1 and TPS62067-Q1 device is
available in a small 2 × 2 × 0,75-mm 8-pin WSON
package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE
TPS62065-Q1
TPS62067-Q1
WSON (8)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Typical Application Circuit
V_IN = 2.9 V to 6 V
PVIN
AVIN
C_IN
10 µF
EN
AGND
PGND
L
1 µH
SW
R₁
360 kΩ
FB
R₂
180 kΩ
PG
V_OUT
1.8 V 2 A
C_ff
C_OUT
22 pF 10 µF
R_PG
100 kΩ
1
Efficiency vs Load Current
100
95
90
85
80
75
70
65
60
L = 1.2 µH (NRG4026T 1R2),
55
C_OUT = 22 µF (0603 size),
V_OUT = 3.3 V,
Mode: Auto PFM/PWM
50
0 0.25 0.5 0.75 1
1.25
Load Current (A)
V_IN = 3.7 V
V_IN = 4.2 V
V_IN = 5 V
1.5 1.75 2
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.