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MAX16920

Automotive Power-Management IC with Three Step-Down Converters and Linear Regulator

Maxim Integrated 

MAX16920

Automotive Power-Management IC with

Three Step-Down Converters and Linear Regulator

Electrical Characteristics (continued)

(VINA = VINB = 14V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)

PARAMETER

DC-DC Load Regulation

DC-DC Line Regulation

Soft-Start Time

Duty-Cycle Range (Note 3)

Input Voltage to Maintain Constant

Switching with VOUT_ = 1.22V

(Note 3)

Spread-Spectrum Range

LINEAR REGULATOR (LDO)

Output Voltage

Operating Current

SYMBOL

CONDITIONS

MIN

TYP

DC-DC1 (0 to 150mA)

1

LoREG DC-DC2 (0 to 600mA)

1.5

DC-DC3 (0 to 1.5A)

2.5

DC-DC1, VINA, VINB = 6V to 18V,

IOUT1 = 15mA

3

LiREG

DC-DC2, VINA, VINB = 6V to 18V,

IOUT2 = 60mA

5

DC-DC3, VINA, VINB = 6V to 18V,

IOUT3 = 150mA

MAX16920A

3

8.5

10

Spread-spectrum

tSS

disabled

MAX16920B

Spread-spectrum

enabled

6.5

7.5

6.75

8

MAX16920A

3

DCR

MAX16920B

11

VINDCL

MAX16920A, limited by minimum duty

cycle, DC-DC2 and DC-DC3 only

MAX16920B, limited by minimum duty

cycle, DC-DC2 and DC-DC3 only

SS

Spread-spectrum option only

10

VOUTA

Output in regulation, IOUTA < 100mA,

VINA = 6V to 18V

4.85

5

ICCA

No load (excludes DC-DC_ operating

current)

100

Power-Good Threshold

PGTA Output rising

88.5 91.5

Power-Good Threshold Hysteresis

Output Current Limit

Dropout Voltage

Load Regulation

Line Regulation

LOGIC LEVELS

POR, PG_, OT, and UVO Output

Voltage Low

PGTAH

2

ILIMA

200

VDA

VINA = 5V, ILDOA = 100mA (Note 3)

DI

IOUTA = 5mA to 100mA

30

DV

VINA = 6V to 18V, IOUTA = 50mA

0.05

VOL

Sink current = 1mA

MAX UNITS

%

mV/V

11.5

8.5

ms

9.25

97

%

96

18

V

8

%

5.15

V

µA

94.5

% of

VOUTA

(nom)

%

300

mA

0.5

V

mV

mV/V

0.4

V

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