MAX16936(2018) View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX16936
(Rev.:2018)

36V, 220kHz to 2.2MHz Step-Down Converters with 28µA Quiescent Current

Maxim Integrated 

MAX16936/MAX16938

36V, 220kHz to 2.2MHz Step-Down Converters

with 28µA Quiescent Current

Typical Operating Characteristics

(VSUP = VSUPSW = 14V, VEN = 14V, VOUT = 5V, VFYSNC = 0V, RFOSC = 12kI, TA = +25NC, unless otherwise noted.)

EFFICIENCY vs. LOAD CURRENT

100

fSW = 2.2MHz, VIN = 14V

90

5V SKIP MODE

80

70

60

3.3V

50

3.3V

5V

40

PWM MODE

30

20

10

0

0

0.001

0.1

10

LOAD CURRENT (A)

VOUT LOAD REGULATION

5.10

5.08

VOUT = 5V, VIN = 14V

PWM MODE

5.06

5.04

400kHz

5.02

5.00

4.98

4.96

2.2MHz

4.94

4.92

4.90

0

0.5 1.0 1.5 2.0 2.5

ILOAD (A)

fSW vs. TEMPERATURE

2.28 VIN = 14V,

PWM MODE

2.24

2.20

VOUT = 5V

2.16

2.12

2.08

2.04

VOUT = 3.3V

2.00

-40 -25 -10 5 20 35 50 65 80 95 110 125

TEMPERATURE (°C)

EFFICIENCY vs. LOAD CURRENT

100

fSW = 400kHz, VIN = 14V

90

SKIP MODE

80

5V

70

5V

60

3.3V

50

3.3V

PWM MODE

40

30

20

10

0

0

0.001

0.1

10

LOAD CURRENT (A)

fSW vs. LOAD CURRENT

2.30

2.28

VIN = 14V,

PWM MODE

2.26

2.24

VOUT = 5V

2.22

2.20

2.18

2.16

VOUT = 3.3V

2.14

2.12

2.10

0

0.5 1.0 1.5 2.0 2.5

ILOAD (A)

SWITCHING FREQUENCY vs. RFOSC

2.50

2.25

2.00

1.75

1.50

1.25

1.00

0.75

0.50

0.25

0

12

42

72

102

132

RFOSC (kΩ)

VOUT LOAD REGULATION

5.10

VOUT = 5V, VIN = 14V

5.08 SKIP MODE

5.06

5.04

400kHz

5.02

5.00

4.98

4.96

2.2MHz

4.94

4.92

4.90

0

0.5 1.0 1.5 2.0 2.5

ILOAD (A)

fSW vs. LOAD CURRENT

435

434

VIN = 14V,

PWM MODE

433

VOUT = 5V

432

431

430

429

VOUT = 3.3V

428

427

426

425

0

0.5 1.0 1.5 2.0 2.5

ILOAD (A)

SUPPLY CURRENT vs. SUPPLY VOLTAGE

50

45

40

35

30

25

20

15 5V/2.2MHz

SKIP MODE

10

6

16

26

36

SUPPLY VOLTAGE (V)

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