MAX16936RATEA datasheet(5/17 Pages) MAXIM

Part #	MAX16936RATEA

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

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Manufacturer	MAXIM [Maxim Integrated Products]

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MAX16936

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

with 28µA Quiescent Current

5

Maxim Integrated

Typical Operating Characteristics

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

SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

26

16

15

20

25

30

35

40

45

50

10

636

5V/2.2MHz

SKIP MODE

SWITCHING FREQUENCY vs. RFOSC

RFOSC (kΩ)

102

72

42

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

2.25

2.50

0

12

132

FSW vs. TEMPERATURE

TEMPERATURE (°C)

110

95

-25 -10 5

35 50 65

20

80

2.04

2.08

2.12

2.16

2.20

2.24

2.28

2.00

-40

125

VIN = 14V,

PWM MODE

VOUT = 5V

VOUT = 3.3V

FSW vs. LOAD CURRENT

ILOAD (A)

2.0

1.5

1.0

0.5

426

427

428

429

430

431

432

433

434

435

425

0

2.5

VIN = 14V,

PWM MODE

VOUT = 5V

VOUT = 3.3V

FSW vs. LOAD CURRENT

ILOAD (A)

2.0

1.5

1.0

0.5

2.12

2.14

2.16

2.18

2.20

2.22

2.24

2.26

2.28

2.30

2.10

0

2.5

VIN = 14V,

PWM MODE

VOUT = 5V

VOUT = 3.3V

VOUT LOAD REGULATION

ILOAD (A)

2.0

1.5

1.0

0.5

4.92

4.94

4.96

4.98

5.00

5.02

5.04

5.06

5.08

5.10

4.90

0

2.5

VOUT = 5V, VIN = 14V

PWM MODE

400kHz

2.2MHz

VOUT LOAD REGULATION

ILOAD (A)

2.0

1.5

1.0

0.5

4.92

4.94

4.96

4.98

5.00

5.02

5.04

5.06

5.08

5.10

4.90

0

2.5

VOUT = 5V, VIN = 14V

SKIP MODE

400kHz

2.2MHz

EFFICIENCY vs. LOAD CURRENT

LOAD CURRENT (A)

0.1

0.001

10

20

30

40

50

60

70

80

90

100

0

010

fSW = 400kHz, VIN = 14V

SKIP MODE

PWM MODE

3.3V

5V

EFFICIENCY vs. LOAD CURRENT

LOAD CURRENT (A)

0.1

0.001

10

20

30

40

50

60

70

80

90

100

0

010

fSW = 2.2MHz, VIN = 14V

SKIP MODE

PWM MODE

3.3V

5V

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