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PFM STEP-UP DC/DC CONVERTER WITH HIGH EFFICIENCY AND LOW NOISE

BL8530

SELECTION GUIDE：

BL8530

--XX X XX

OUTLINE：

The BL8530 series are CMOS-based PFM

step-up DC-DC Converter. The converter can

start up by supply voltage as low as 0.8V, and

capable of delivering maximum 200mA output

current at 3.3V output with 1.8V input Voltage.

Quiescent current drawn from power source is

as low as 7uA. All of these features make

BL8530 series be suitable for the portable

devices, which are supplied by a single battery

to four-cell batteries.

To reduce the noise caused by the switch

regulator, BL8530 is well considerated in circuit

design and manufacture. So that the interferer

to other circuits by the device is reduced

greatly.

BL8530

integrates

stable

reference

circuits and trimming technology, so it can

afford high precision and low temperature-drift

coefficient of the output voltage.

BL8530 is available in SOT-89-3 、

SOT-23-3 and SOT-23-5 packages which is PB

free. And in 5-pin packages, such as

SOT-23-5, the device can be switch on or off

easily by CE pin, to minimize the standby

supply current.

FEATURES：

with 1.8V input Voltage

current is 1mA)--------------------------0.8V

adjusted from 2.5V～6.0V(In 0.1V step).

output voltage------------------

±100ppm/℃

necessary: An inductor, a Schottky diode

and an output filter capacitor

source------------------------------------- <7uA

Player、electronic toy and wireless mouse

battery-powered equipments

PIN CONFIGURARION：

Function Description：

1 ： Internal Tr. Driver ，

Without Enable circuit

2：Internal Tr. Driver，

With Enable circuit

3 ： External Tr. Driver ，

Without Enable circuit

4：External Tr. Driver，With

Enable circuit

Output Voltage：

25……2.5V

30……3.0V

……

60……6.0V (In 0.1V step)

Package Type：

RN：SOT-23-5

RM：SOT-23-3

SM：SOT-89-3