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http://www.union-ic.com Rev.01 Jan.2016

4/13

UM3510

Electrical Characteristics

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

SUPPLY

Input Voltage Range

2.5

6.0

V

UVLO

Under Voltage Lockout

Threshold

Falling Edge

1.8

2.3

V

UVLO_HYS

Under Voltage Lockout

Hysteresis

200

mV

Input DC Supply

Current (MODE=GND)

56

80

μA

Input DC Supply

Current (MODE=VIN)

5.6

mA

Input Supply Current

(Shutdown Mode)

0.1

1.0

μA

OUTPUT

Regulated Feedback

Voltage

0.588

0.600

0.612

V

FB Input Bias Current

30

nA

Output Voltage Line

Regulation

0.10

0.20

%/V

Output Voltage Load

Regulation

0.5

%/A

Maximum Output

Current

1000

mA

Soft Start Time

400

μs

SW Leakage

±0.01

±1

μA

POWER SWITCH

MOSFET

0.25

0.30

Ω

MOSFET

0.18

0.23

Ω

Peak Inductor Current

1.6

1.8

2.0

A

Thermal Shutdown

Temperature

150

ºC

Thermal Shutdown

Temperature Hysteresis

20

ºC

OSILLATOR

f

Oscillator Frequency

1.95

2.25

2.55

MHz

ENABLE, MODE

High-Level Threshold

1.2

V

Low-Level Threshold

0.4

V

Input Leakage Current

0.1

1

μA