TL499A

WIDE-RANGE POWER-SUPPLY CONTROLLERS

SLVS029F – JANUARY 1984 – REVISED MAY 2000

4

POST OFFICE BOX 655303

electrical characteristics over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

TL499AC

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Voltage deviation (see Note 5)

20

30

mV/V

Switching regulator

TA = –20°C to 70°C

1.2

Dropout voltage

Switching regulator

1.9

V

Series regulator

VI1 = 15 V,

IO = 50 mA

1.8

Reference voltage (internal)

VI2 = 5 V,

VO = 3 V,

IO = 1 mA

1.2

1.26

1.32

V

Reference-voltage change with temperature

5

10

mV/V

Output regulation (of reference voltage)

IO = 1 mA to 50 mA

10

30

mV/V

VI2 = 1.1 V, VO = 12 V,

RCL = 150 Ω,

TA = 25°C

10

Output current

Switching regulator

VI2 = 1.5 V, VO = 15 V,

RCL = 150 Ω,

TA = 25°C

15

mA

(see Figure 1)

VI2 = 6 V,

VO = 30 V,

RCL = 150 Ω,

TA = 25°C

65

mA

Series regulator

100

Standby current

Switching regulator

VI2 = 3 V,

VO = 9 V,

TA = 25°C

15

80

µA

Standby current

Series regulator

VI1 = 15 V,

VO = 9 V,

RE2 = 4.7 kΩ

0.8

1.2

mA

NOTE 5: Voltage deviation is the output voltage difference that occurs in a change from series regulation to switching regulation:

Voltage deviation

+ V

noted)

PARAMETER

TEST CONDITIONS

TL499AY

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Voltage deviation (see Note 5)

20

30

mV/V

Switching regulator

TA = –20°C to 70°C

1.2

Dropout voltage

Switching regulator

TA = –20°C to 85°C

1.9

V

Series regulator

VI1 = 15 V,

IO = 50 mA

1.8

Reference voltage (internal)

VI2 = 5 V,

VO = 3 V,

IO = 1 mA

1.2

1.26

1.32

V

Reference-voltage change with temperature

TA = –20°C to 85°C

5

10

mV/V

Output regulation (of reference voltage)

IO = 1 mA to 50 mA

10

30

mV/V

VI2 = 1.1 V,

VO = 12 V,

RCL = 150 Ω

10

Output current

Switching regulator

VI2 = 1.5 V,

VO = 15 V,

RCL = 150 Ω

15

mA

(see Figure 1)

VI2 = 6 V,

VO = 30 V,

RCL = 150 Ω

65

mA

Series regulator

100

Standby current

Switching regulator

VI2 = 3 V,

VO = 9 V

15

80

µA

Standby current

Series regulator

VI1 = 15 V,

VO = 9 V,

RE2 = 4.7 kΩ

0.8

1.2

mA

NOTE 5: Voltage deviation is the output voltage difference that occurs in a change from series regulation to switching regulation:

Voltage deviation

+ V