TLV62569_0017 Datasheet, PDF (1/25 Pages) Texas Instruments – 2-A High Efficiency Synchronous Buck Converter in SOT Package

Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
TLV62569, TLV62569P
SLVSDG1C – DECEMBER 2016 – REVISED OCTOBER 2017
TLV62569 2-A High Efficiency Synchronous Buck Converter in SOT Package
1 Features
•1 Up to 95% Efficiency
• Low R_DS(ON) Switches 100 mΩ / 60 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
• Power Good Output
• Over Current Protection
• Internal Soft Startup
• Thermal Shutdown Protection
• Available in SOT Package
• Pin-to-Pin Compatible with TLV62568
• Create a Custom Design Using the TLV62569
With the WEBENCH^® Power Designer
2 Applications
• General Purpose POL Supply
• Set Top Box
• Network Video Camera
• Wireless Router
• Hard Disk Driver
3 Description
The TLV62569 device is a synchronous step-down
buck DC-DC converter optimized for high efficiency
and compact solution size. The device integrates
switches capable of delivering an output current up to
2 A.
Simplified Schematic
VIN
2.5 V to 5.5 V
R3
499 k
VPG
C1
4.7 µF
TLV62569P
VIN
SW
L1
2.2 µH
EN
PG GND FB
VOUT
1.8 V / 2.0 A
C2
C3*
10 µF R1
200 k
C3: Optional
R2
100 k
Copyright Ú 2016, Texas Instruments Incorporated
At medium to heavy loads, the device operates in
pulse width modulation (PWM) mode with 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 TLV62569 provides an adjustable output voltage
via an external resistor divider. An internal soft start
circuit limits the inrush current during startup. Other
features like over current protection, thermal
shutdown protection and power good are built-in. The
device is available in a SOT23 and SOT563 package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV62569DBV
TLV62569PDDC
SOT23 (5)
SOT23 (6)
2.90 mm × 2.80 mm
TLV62569DRL
TLV62569PDRL
SOT563 (6)
SOT563 (6)
1.60 mm x 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Device Comparison
PART NUMBER
FUNCTION
TLV62569DBV
TLV62569PDDC
TLV62569DRL
TLV62569PDRL
-
Power Good
-
Power Good
MARKING
SYMBOL
16AF
7G
19D
19E
Efficiency at 5-V Input Voltage
100
95
90
85
80
75
70
VOUT = 1.2 V
VOUT = 1.8 V
65
VOUT = 2.5 V
VOUT = 3.3 V
60
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Load (A)
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.