TLV62585 Datasheet, PDF (1/19 Pages) Texas Instruments – 3-A High Efficiency Synchronous Buck Converter in 2-mm x 2-mm QFN Package

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TLV62585
SLVSDE5A – JULY 2017 – REVISED AUGUST 2017
TLV62585 3-A High Efficiency Synchronous Buck Converter in 2-mm × 2-mm
QFN Package
1 Features
•1 Up to 95% Efficiency
• Low R_DS(ON) Power Switches 56 mΩ / 32 mΩ
• 2.5-V to 5.5-V Input Voltage Range
• Adjustable Output Voltage from 0.6-V to V_IN
• Power Save Mode for Light Load Efficiency
• 100% Duty Cycle for Lowest Dropout
• 35-μA Operating Quiescent Current
• 1.5-MHz Typical Switching Frequency
• Short Circuit Protection (HICCUP)
• Output Discharge
• Power Good Output
• Thermal Shutdown Protection
• Available in 2-mm × 2-mm QFN Package
• Create a Custom Design Using the TLV62585
With the WEBENCH^® Power Designer
2 Applications
• General Purpose Point-of-Load Supply
• Battery-Powered Application
• Wireless Router
• Solid State Drive
Spacer
Spacer
Spacer
Typical Application Schematic
VIN
2.5 V to 5.5 V
C1
10 µF
C3: Optional
TLV62585
PG
VIN
SW
L1
1.0 µH
EN
PGND
FB
AGND
R3
1M
C2
10 µF
R1
200 k
R2
100 k
VPG
VOUT
1.8 V / 3.0 A
C3*
Copyright Ú 2016, Texas Instruments Incorporated
3 Description
The TLV62585 device is a high-frequency
synchronous step-down converter optimized for
compact solution size and high efficiency. The device
integrates switches capable of delivering an output
current up to 3 A. At medium to heavy loads, the
converter operates in pulse width modulation (PWM)
mode with typical 1.5-MHz switching frequency. At
light load, the device automatically enters Power
Save Mode (PSM) to maintain high efficiency over
the entire load current range. In shutdown, the
current consumption is reduced to less than 2 μA.
The internal compensation circuit allows a compact
solution and small external components. An internal
soft start circuit limits the inrush current during
startup. Other features like short circuit protection,
thermal shutdown protection, output discharge and
power good are built-in. The device is available in a
2-mm × 2-mm QFN package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV62585RWT
QFN (12)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
100
95
90
85
80
75
70
0
5-V Input Voltage Efficiency
V_OUT = 1.2 V
V_OUT = 1.8 V
V_OUT = 2.5 V
V_OUT = 3.3 V
0.5
1
1.5
2
2.5
Load (A)
3
D008
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. ADVANCE INFORMATION for pre-production products; subject to
change without notice.