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2

BL8089

TYPICAL APPLICATION

Ref

Driver

Control

Logic

SW2

GND

ENB1

VDD1

10uF

VDD1

2.2uH

10uF

R3

450K

R4

100K

Vout2

3.3V

22pF

VO2

VIN1

1uF

1.8V

VIN2

1uF

VIN2

VO1

1uF

1.2V

FB1

ENL2

VDD2

FB2

ENB2

SW1

GND

ENL1

Driver

2.2uH

10uF

R1

240K

R2

120K

Vout1

1.8V

22pF

1uF

1uF

VO1

5V

3.3V

VO2

VIN1

1.8V

VDD2

5V

ORDERING INFORMATION

Mark Explanation

SW2

VO2

GND

SW1

GND

ENL1

VO1

ENL2

17

8

7

5

6

16

15

13

14

GND

Ordering Information

UA: Product Code

YW: Date code(Year & Week)

LLLLLL: Lot No.

XX: Output Voltage(VO1)

YY: Output Voltage(VO2)

QFN3x3-16

3000pcs/reel

ABSOLUTE MAXIMUM RATING

Parameter

Value

Max Input Voltage (VDD)

8V

Max Input Voltage (VIN)

8V

Max Operating Junction Temperature(Tj)

125C

Ambient Temperature(Ta)

-40C – 85C

Maximum Power Dissipation

QFN3x3-16

2W

Package Thermal Resistance (jc)

13C / W

Package Thermal Resistance (jA)

60C / W

Storage Temperature(Ts)

-40C - 150C

Lead Temperature & Time

260C, 10S

Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect

device reliability.