DIO8015

Version 1.2, Mar 2025

www.dioo.com

© 2025 Dioo Microcircuits Co., Ltd. Jiangsu

3

5. Thermal Considerations

The thermal resistance determines the heat insulation property of a material. The higher the thermal

resistance is, the lower the heat loss. Accumulation of heat energy degrades the performance of

semiconductor components.

Symbol

Metric

Value

Unit

RθJA

Junction-to-ambient thermal resistance

51

°C/W

6. Electrical Characteristics

Minimum and maximum values are at VIN2 = 2.5 V or (VDVDD1,2 + 1.6 V), whichever is greater; VIN1 = 0.6 to 2

V and VIN1 ≥ VDVDD1,2 + 300 mV. TJ = -40°C to 125°C unless otherwise noted. Typical values are at TJ = 25°C;

VIN2 = 3.8 V; VIN1 = 1.5 V; VDVDD1,2 = 1.2 V, VAVDD1,2 = 2.8 V.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIN1

Input voltage range (1)

0.6

2.0

V

VIN2

2.5

5.5

VDVDD1,2

Output voltage

accuracy

TJ = 25°C; VDVDD1,2 = 1.2 V

±0.5

%

VAVDD1,2

TJ = 25°C; VAVDD1,2 = 2.8 V

±0.5

VIN2UVLO

VIN2 undervoltage

lockout threshold

Rising

2.25

V

Falling

2.15

IGND

Supply quiescent

current

DVDD1 is ON

32

µA

DVDD1,2 are ON

48

DVDD1,2 and AVDD1 are ON

66

DVDD1,2 and AVDD1,2 are ON

82

ISD

Supply current

shutdown

EN = GND, VIN = 3.6 V, all registers are

default value

1

µA

DVDD1,2

Output voltage range(1)

When VOUT + 300 mV ≤ VIN1,

VIN2 ≥ 2.5 V & VIN2 ≥ VOUT + 1.6 V

0.6

1.8

V

AVDD1,2

When VOUT + 300 mV ≤ VIN2 & VIN2 ≥ 2.5 V

1.2

4.3

DVDD1,2

Dropout voltage

IOUT_TARGET = 1200 mA,

VOUT_TARGET = 1.2 V, VIN2 = 3.6 V

120

mV

AVDD1,2

IOUT_TARGET = 400 mA,

VOUT_TARGET = 2.8 V, VIN2 = 3.6 V

125

DVDD1,2

Max load current (1)

1200

mA

AVDD1,2

400