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TLV62565, TLV62566
SLVSBC1C –OCTOBER 2013–REVISED JULY 2015
TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package
1 Features
3 Description
The TLV62565/6 devices are synchronous step-down
converters optimized for small solution size and high
efficiency. The devices integrate switches capable of
delivering an output current up to 1.5 A.
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2.7-V to 5.5-V Input Voltage Range
1.5-MHz Typical Switching Frequency
Output Current up to 1.5 A (Max)
Adaptive On-Time Current Control
Power Save Mode for Light Load Efficiency
50-µA Operating Quiescent Current
Up to 95% Efficiency
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The devices are based on an adaptive on time with
valley current mode control scheme. Typical
operating frequency is 1.5 MHz at medium to heavy
loads. The devices are optimized to achieve very low
output voltage ripple even with small external
components and feature an excellent load transient
response.
Over Current Protection
95% Maximum Duty Cycle
Excellent AC and Transient Load Response
Power Good Output, TLV62566
Internal Soft Startup of 250 µs (Typ)
Adjustable Output Voltage
During a light load, the TLV62565/6 automatically
enter into Power Save Mode at the lowest quiescent
current (50 μA typ) to maintain high efficiency over
the entire load current range. In shutdown, the
current consumption is reduced to less than 1 μA.
Thermal Shutdown Protection
The TLV62565/6 provide an adjustable output voltage
via an external resistor divider. The output voltage
start-up ramp is controlled by an internal soft start,
typically 250 µs. Power sequencing is possible by
configuring the Enable (TLV62565) and Power Good
(TLV62566) pins. Other features like over current
protection and over temperature protection are built-
in. The TLV62565/6 devices are available in a SOT-
23 5-pin package.
Available in SOT-23 5-Pin Package
2 Applications
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Portable Devices
DSL Modems
Hard Disk Drivers
Set Top Box
Tablet
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLV62565,
TLV62566
SOT-23 (5)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
L1
2.2µH
VOUT
1.8V
VIN
Efficiency vs Load Current
VIN
EN
SW
FB
2.7V to 5.5V
C1
4.7µF
R1
240k
C2
10µF
100
VOUT=1. 8V
90
GND
R2
120k
80
70
60
50
40
30
TLV62565
Vin=2.7V
VIN=2.7V
20
10
0
V
=3.6V
Vin=3.6V
IN
V
=5.5V
Vin=5.5V
IN
10µ
100µ
1m
10m
100m
1
C001
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.