MAX5073ETI datasheet(3/25 Pages) MAXIM

Part #	MAX5073ETI

Description	2.2MHz, Dual-Output Buck or Boost Converter with Internal Power MOSFETs

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Manufacturer	MAXIM [Maxim Integrated Products]

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2.2MHz, Dual-Output Buck or Boost Converter

with Internal Power MOSFETs

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(V+ = VL = 5.2V or V+ = 5.5V to 23V, EN_ = VL, SYNC = GND, IVL = 0mA, PGND = SGND, CBYPASS = 0.22µF, CVL = 4.7µF (ceram-

ic), ROSC = 10k

Ω (circuit of Figure 1), TA = TJ = TMIN to TMAX, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VOLTAGE-ERROR AMPLIFIER

FB_ Input Bias Current

IB(EA)

250

nA

0°C ≤ TA ≤ +70°C

0.792

0.8

0.808

-40°C ≤ TA ≤ +85°C

0.788

0.8

0.812

FB_ Input Voltage Set Point

-40°C ≤ TJ ≤ +125°C (MAX5073ATI only)

0.788

0.8

0.812

V

0°C to +85°C

1.25

2

2.70

-40°C to +85°C

1.2

2

2.9

FB_ to COMP_

Transconductance

gM

-40°C to +125°C (MAX5073ATI only)

1.2

2

2.9

mS

INTERNAL PMOSFETS

ISWITCH = 100mA,

VBST1/VDD1 to VSOURCE1 = 5.2V

(MAX5073ETI)

195

290

ISWITCH = 100mA,

VBST1/VDD1 to VSOURCE1 = 5.2V

(MAX5073ATI)

195

330

ISWITCH = 100mA,

VBST1/VDD1 to VSOURCE1 = 4.5V

(MAX5073ETI)

200

315

On-Resistance Converter 1

RON1

ISWITCH = 100mA,

VBST1/VDD1 to VSOURCE1 = 4.5V

(MAX5073ATI)

200

350

m

Ω

ISWITCH = 100mA,

VBST2/VDD2 to VSOURCE2 = 5.2V

330

630

On-Resistance Converter 2

RON2

ISWITCH = 100mA,

VBST2/VDD2 to VSOURCE2 = 4.5V

350

690

m

Ω

Minimum Converter 1 Output Current

IOUT1

VOUT1 = 3.3V, V+ = 12V (Note 3)

2

A

Minimum Converter 2 Output Current

IOUT2

VOUT2 = 2.5V, V+ = 12V (Note 3)

1

A

Converter 1 MOSFET Leakage

Current

ILK1

EN1 = 0V, VDS = 23V

10

µA

Converter 2 MOSFET Leakage

Current

ILK2

EN2 = 0V, VDS = 23V

10

µA

INTERNAL SWITCH CURRENT LIMIT

V+ = 12V (MAX5073ETI)

2.3

3

4.3

Current-Limit Converter 1

ICL1

V+ = 12V (MAX5073ATI)

2.3

3

4.6

A

MAX5073ETI

1.38

1.8

2.10

Current-Limit Converter 2

ICL2

MAX5073ATI

1.38

1.8

2.20

A

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