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

Electrical Characteristics (continued)

(VSUP = VSUPSW = 14V, VEN = 14V, L1 = 2.2FH, CIN = 4.7FF, COUT = 22FF, CBIAS = 1FF, CBST = 0.1FF, RFOSC = 12kI,

TA = TJ = -40NC to +125NC, unless otherwise noted. Typical values are at TA = +25NC.)

PARAMETER

OUTPUT VOLTAGE (OUT)

FPWM Mode Output Voltage

(Note 3)

SYMBOL

VOUT_5V

VOUT_3.3V

Skip-Mode Output Voltage

(Note 4)

Load Regulation

Line Regulation

BST Input Current

LX Current Limit

LX Rise Time

VOUT_5V

VOUT_3.3V

IBST_ON

IBST_OFF

ILX

Skip-Mode Current Threshold

ISKIP_TH

Spread Spectrum

High-Side Switch

On-Resistance

RON_H

High-Side Switch Leakage

Current

Low-Side Switch

On-Resistance

RON_L

Low-Side Switch

Leakage Current

TRANSCONDUCTANCE AMPLIFIER (COMP)

FB Input Current

IFB

FB Regulation Voltage

VFB

FB Line Regulation

Transconductance

(from FB to COMP)

Minimum On-Time

Maximum Duty Cycle

DVLINE

gm

tON_MIN

DCMAX

CONDITIONS

VFB = VBIAS, 6V < VSUPSW < 36V,

MAX16936/38/38____A/V+, fixed-

frequency mode

VFB = VBIAS, 6V < VSUPSW < 36V,

MAX16936/38____B/V+, fixed-frequency

mode

No load, VFB = VBIAS,

MAX16936/38____A/V+, skip mode

VFB = VBIAS, 6V < VSUPSW < 36V,

MAX16936/38____B/V+, skip mode

VFB = VBIAS, 300mA < ILOAD < 2.5A

VFB = VBIAS, 6V < VSUPSW < 36V

High-side MOSFET on, VBST - VLX = 5V

High-side MOSFET off, VBST - VLX = 5V,

TA = +25°C

Peak inductor current

RFOSC = 12kW

TA = +25°C

MAX16936

MAX16938

Spread spectrum enabled

ILX = 1A, VBIAS = 5V

High-side MOSFET off, VSUP = 36V,

VLX = 0V, TA = +25NC

ILX = 0.2A, VBIAS = 5V

VLX = 36V, TA = +25NC

FB connected to an external resistor-

divider, 6V < VSUPSW < 36V (Note 5)

6V < VSUPSW < 36V

VFB = 1V, VBIAS = 5V

(Note 4)

MIN TYP MAX UNITS

4.9

5

5.1

V

3.234 3.3 3.366

4.9

5

5.15

V

3.234 3.3

3.4

0.5

%

0.02

%/V

1

1.5

2

mA

5

FA

3

3.75 4.5

A

4

ns

150 300 400

mA

200 400 500

fOSC Q6%

100 220

mI

1

3

FA

1.5

3

I

1

FA

20

100

nA

0.99 1.0 1.015

V

0.02

%/V

700

FS

80

ns

98

%

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