TLV61070ADBVR中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

1 Features

? Input voltage range: 0.5 V to 5.5 V

? 1.3-V minimum input voltage for start-up

? Output voltage setting range: 2.2 V to 5.5 V

? Two 69-mΩ (LS) / 89-mΩ (HS) MOSFETs

? 2.5-A valley switching current limit

? 92.3 efficiency at VIN = 3.6 V, VOUT = 5 V and

IOUT = 1.0 A

? 1-MHz switching frequency when VIN > 1.5 V and

0.55-MHz switching frequency when VIN < 1 V

? Typical 0.1-μA shutdown current from VIN and SW

? ±2.5 reference voltage accuracy over –40°C to

+125°C

? Auto PFM operation mode at light load

? Pass-through mode when VIN > VOUT

? True disconnection between input and output

during shutdown

? Output overvoltage and thermal shutdown

protections

? Output short-circuit protection

? 2.9-mm × 1.6-mm SOT23-6 (DDC) 6-pin package

2 Applications

? Electronic shelf label

? Video doorbell

? Remote controller

3 Description

TLV61070A device is a synchronous boost converter

with 0.5-V ultra-low input voltage. The device provides

a power supply solution for portable equipment and

smart devices powered by various batteries and super

capacitors. The TLV61070A has typical 2.5-A valley

switch current limit over full temperature range. With

a wide input voltage range of 0.5 V to 5.5 V, the

TLV61070A supports super capacitor backup power

applications, which may deeply discharge the super

capacitor.

The TLV61070A operates at 1-MHz switching

frequency when the input voltage is above 1.5 V.

The switching frequency decreases gradually to 0.55

MHz when the input voltage is below 1.5 V down

to 1 V. The TLV61070A enters power-save mode

at light load condition to maintain high efficiency

over the entire load current range. The TLV61070A

consumes a 20-μA quiescent current from VOUT in

light load condition. During shutdown, the TLV61070A

is completely disconnected from the input power

and only consumes a 0.1-μA current to achieve

long battery life. The TLV61070A has 5.7-V output

overvoltage protection, output short circuit protection,

and thermal shutdown protection.

The TLV61070A offers a very small solution size

with 2.9-mm × 1.6-mm SOT23-6 (DBV) package and

minimum amount of external components.