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BL8052

DETAILED DESCRIPTION

BL8052 is a charge-pump IC. It can provide a 12V regulated output 30mA from voltage input as low as

4.75 without any inductors. It is useful for a wide range of applications and its performances makes it ideal for

flash memory programming supply.

Figure 1 is a simplified block diagram of BL8052. When the S1 switches are closed and the S2 switches

are open, capacitors C1 and C2 are charged up to VCC. And then the S1 switches are opened and the S2

switches are closed, capacitors C1 and C2 are connected in series between VCC and VOUT. A feedback

scheme adjusts the output voltage to 12V ±5%.

A good layout design is strongly recommended for noise reason. Very short connections to the

capacitors should be used for best performance. C3 and C4 must have low ESR in order to minimize the

output ripple. C1 and C2 should use ceramic or tantalum capacitors in the 0.22μF to 1.0μF range.

PACKAGE OUTLINE

Package

SOP8

Devices per reel

2500

Unit

mm

Package specification：