TLV62065-Q1 Datasheet, PDF (1/27 Pages) Texas Instruments – 3-MHz 2-A Step-Down Converter in 2-mm x 2-mm SON Package

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TLV62065-Q1
SLVSB92A – JANUARY 2012 – REVISED MARCH 2012
3-MHz 2-A Step-Down Converter in 2-mm x 2-mm SON Package
Check for Samples: TLV62065-Q1
FEATURES
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•2 Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following
Results:
– Device Temperature Grade 2: –40°C to
105°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• V_IN Range from 2.9 V to 5.5 V
• Up to 97% Efficiency
• Power-Save Mode / - MHz Fixed PWM Mode
• Output Voltage Accuracy in PWM Mode ±2.0%
• Output Capacitor Discharge Function
• Typical 18-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• For Improved Feature Set See TPS62065
• Available in a 2-mm × 2-mm × 0.75-mm SON
APPLICATIONS
DESCRIPTION
The TLV62065-Q1 is a highly efficient, synchronous
step-down, dc-dc converter with a 1.2-V fixed output
voltage.. It provides up to 2 A of output current.
With an input voltage range of 2.9 V to 5.5 V, the
device is a perfect fit for power conversion from a 5-V
or 3.3-V system supply rail. The TLV62065-Q1
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. For
low-noise applications, the TLV62065-Q1 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 and an internal circuit
discharges the output capacitor.
The TLV62065-Q1 operates with a 1-µH inductor and
10-µF output capacitor.
The TLV62065-Q1 is available in a small 2-mm × 2-
mm × 0.75-mm 8-pin SON package.
• Point of Load (POL)
• Notebooks, Pocket PCs
• Portable Media Players
• Set Top Box
TYPICAL APPLICATION CIRCUIT
100
V_IN = 3.7 V
95
V_IN = 2.9 V to 5.5 V
TLV62065-Q1
PVIN
SW
AVIN
C_IN
10 mF
EN
MODE
FB
AGND
PGND
L
1.0 mH
R₁
360 kW
R₂
180 kW
V_OUT
1.8 V 2 A
C_ff
C_OUT
22 pF 10 mF
90
V_IN = 4.2 V
V_IN = 5 V
85
80
75
70
65
60
55
50
0
L = 1.2 mH (NRG4026T 1R2),
C_OUT = 22 mF (0603 size),
V_OUT = 3.3 V,
Mode: Auto PFM/PWM
0.25 0.5 0.75 1 1.25 1.5 1.75 2
I_L - Load Current - A
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated