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TLV62566DBVT

更新时间: 2024-02-08 00:30:06
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TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package

TLV62566DBVT 数据手册

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TLV62565, TLV62566  
SLVSBC1C OCTOBER 2013REVISED 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.  
1
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  
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  
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  
20  
10  
0
V
=3.6V  
IN  
V
=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.  
 
 
 
 
 

TLV62566DBVT 替代型号

型号 品牌 替代类型 描述 数据表
TLV62566DBVR TI

完全替代

TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package

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