MAX1585ETJ datasheet(5/29 Pages) MAXIM

Part #	MAX1585ETJ

Description	5-Channel Slim DSC Power Supplies

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Manufacturer	MAXIM [Maxim Integrated Products]

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5-Channel Slim DSC Power Supplies

_______________________________________________________________________________________

5

PARAMETER

CONDITIONS

MIN

MAX

UNITS

GENERAL

Input Voltage Range

(Note 2)

0.7

5.5

V

Shutdown Supply Current

into PVSU

PVSU = 3.6V

5

µA

Supply Current into PV with

Step-Up Enabled

ONSU = 3.6V, FBSU = 1.5V

(does not include switching losses)

450

µA

Supply Current into PV with

Step-Up and Step-Down Enabled

ONSU = ONSD = 3.6V, FBSU = 1.5V, FBSD = 1.5V

(does not include switching losses)

700

µA

Total Supply Current from PV and

PVSU with Step-Up and One AUX

Enabled

ONSU = ON1 = 3.6V, FBSU = 1.5V, FB2 = 1.5V

(does not include switching losses)

650

µA

REFERENCE

Reference Output Voltage

IREF = 20µA

1.225

1.275

V

Reference Load Regulation

10µA < IREF < 200µA

10

mV

Reference Line Regulation

2.7V < PVSU < 5.5V

5

mV

OSCILLATOR

OSC Discharge Trip Level

Rising edge

1.225

1.275

V

OSC Discharge Resistance

OSC = 1.5V, IOSC = 3mA

80

Ω

STEP-UP DC-DC CONVERTER

Step-Up Startup-to-Normal

Operating Threshold

Rising edge or falling edge (Note 4)

2.30

2.65

V

Step-Up Voltage Adjust Range

3.0

5.5

V

FBSU Regulation Voltage

1.225

1.275

V

FBSU to CCSU

Transconductance

FBSU = CCSU

80

185

µS

FBSU Input Leakage Current

FBSU = 1.25V

-100

+100

nA

Step-Up Maximum Duty Cycle

FBSU = 1V

80

90

%

PVSU Leakage Current

VLX = 0V, PVSU = 5.5V

5

µA

LXSU Leakage Current

VLXSU = VOUT = 5.5V

5

µA

N channel

150

Switch On-Resistance

P channel

250

m

Ω

N-Channel Current Limit

2.4

3.2

A

STEP-DOWN DC-DC CONVERTER

Step-Down Output Voltage Adjust

Range

PVSD must be greater than output (Note 7)

1.25

5.00

V

ELECTRICAL CHARACTERISTICS

(VPVSU = VPV = VPVSD = VINDL2 = 3.6V, TA = -40°C to +85°C, unless otherwise noted.) (Note 8)

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