KB3511 datasheet(2/14 Pages) KINGBOR

2 / 14 page

Input Supply Voltage .................................. – 0.3V to 6.5V

RUN, VFB Voltages ..................................... – 0.3V to VIN

SW Voltage .................................. – 0.3V to (VIN + 0.3V)

P-Channel Switch Source Current (DC) ............. 800mA

N-Channel Switch Sink Current (DC) ................. 800mA

(Note 1)

Peak SW Sink and Source Current ........................ 1.3A

Operating Temperature Range (Note 2) .. – 40

°C to 85°C

Junction Temperature (Note 3) ............................ 125

°C

Storage Temperature Range ................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec)................. 300

°C

The

● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.

VIN = 3.6V unless otherwise specified.

KB3511

Kingbor Technology Co.,Ltd

TEL:(86)0755-26508846 FAX:(86)0755-26509052

ABSOLUTE MAXIMUM RATINGS

PACkAGE/ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

TOP VIEW

DD PACKAGE

10-LEAD (3mm

× 3mm) PLASTIC DFN

EXPOSED PAD IS PGND (PIN 11)

MUST BE CONNECTED TO GND

VFB2

RUN2

POR

SW2

MODE/

SYNC

VFB1

RUN1

VIN

SW1

GND

ORDER PART

NUMBER

DD PART MARKING

TJMAX = 125

°C, θJA = 45°C/W, θJC = 10°C/W

KB3511A

ORDER PART

NUMBER

DD PART MARKING

KB3511B

TOP VIEW

DD PACKAGE

10-LEAD (3mm

× 3mm) PLASTIC DFN

EXPOSED PAD IS PGND (PIN 11)

MUST BE CONNECTED TO GND

VOUT2

RUN2

SW2

MODE/

SYNC

VOUT1

RUN1

VIN

SW1

GND

TJMAX = 125

°C, θJA = 45°C/W, θJC = 10°C/W

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Operating Voltage Range

●

2.5

6.5

IFB

Feedback Pin Input Current

●

VFB

Feedback Voltage (Note 3)

°C ≤ TA ≤ 85°C

0.588

0.6

0.612

–40

°C ≤ TA ≤ 85°C

●

0.585

0.6

0.612

∆VLINE REG

Reference Voltage Line Regulation

VIN = 2.5V to 5.5V (Note 3)

0.3

0.5

%/V

∆VLOAD REG

Output Voltage Load Regulation

(Note 3)

0.5

Input DC Supply Current

Active Mode

VFB1 = VFB2 = 0.6V

100

µA

Shutdown

RUN = 0V, VIN = 5.5V, MODE/SYNC = 0V

0.1

µA

fOSC

Oscillator Frequency

VFB = 0.6V

●

1.6

2.2

2.8

MHz

fSYNC

Synchronization Frequency

2.2

MHz

ILIM

Peak Switch Current Limit

VIN = 3V, FBK = 0.5V, Duty Cycle <35%

0.85

1.25

RDS(ON)

Top Switch On-Resistance

VIN = 3.6V (Note 6)

0.35

0.45

Ω

Bottom Switch On-Resistance

VIN = 3.6V (Note 6)

0.30

0.45

Ω

ISW(LKG)

Switch Leakage Current

VIN = 5V, VRUN = 0V, VFB = 0V

0.01

µA

= 1.5V

OUT1

= 2.2V

OUT2

FB1

= 0.6V

FB2

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