TLV62065_16 Datasheet, PDF (1/26 Pages) Texas Instruments – 3-MHz 2-A Step-Down Converter in 2 x 2 WSON Package

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TLV62065
SLVSAC4B – NOVEMBER 2010 – REVISED DECEMBER 2015
TLV62065 3-MHz 2-A Step-Down Converter in 2 × 2 WSON Package
1 Features
•1 V_IN Range from 2.9 V to 5.5 V
• Up to 97% Efficiency
• Power-Save Mode / 3-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
• Available in a 2 mm × 2 mm × 0.75 mm WSON
2 Applications
• Point-of-Load (POL)
• Notebooks, Pocket PCs
• Portable Media Players
• Set-Top Boxes
3 Description
The TLV62065 device is a high efficiency
synchronous step-down DC–DC converter. It
provides up to 2-A 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 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, TLV62065 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.
TLV62065 operates with a 1-µH inductor and 10-µF
output capacitor.
The TLV62065 is available in a small 2 mm × 2 mm ×
0.75 mm 8-pin WSON package.
V_IN = 2.9 V to 5.5 V
C_IN
10 µF
Typical Application Schematic
TLV62065
PVIN
SW
AVIN
EN
MODE
FB
AGND
PGND
L
1.0 µH
R₁
360 kΩ
R₂
180 kΩ
V_OUT
1.8 V 2 A
C_ff
C_OUT
22 pF 10 µF
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SLVSAC4
WSON (8)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Space
100
95
Efficiency vs Load Current
V_IN = 3.7 V
90
V_IN = 4.2 V
V_IN = 5 V
85
80
75
70
65
60
55
50
0
L = 1.2 µH (NRG4026T 1R2),
C_OUT = 22 µF (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
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.