MAXM17225 datasheet(3/14 Pages) MAXIM

3 / 14 page

Tiny, 0.4V to 5.5V Input, 300nA IQ, nanoPower

Boost Module with True Shutdown

MAXM17225

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Maxim Integrated | 3

(VIN = VINS = VEN = 1.5V, VOUT = 3.0V, TA = -40°C to +125°C, CIN = COUT = 1x10µF, unless otherwise specified, see Note 2. )

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VEN = VIN, Not

switching, VOUT =

104% of 1.8V

TA = -40°C to 85°C

470

900

VEN = VIN, Not

switching, VOUT =

104% of 1.8V

TA = -40ºC to

125ºC

1000

2000

Quiescent Supply

Current into INS

IQ_INS

VOUT = 104% of

1.8V

TA = 25°C

0.1

Total Quiescent Supply

Current into IN, INS, EN

IQ_IN_TOTAL

Not switching, VOUT = 104% of 1.8V.

Total current includes IN, INS, and EN.

TA = 25°C

0.5

100

Shutdown Current into

INS

ISD_INS

VOUT = VEN = 0V, TA = +25°C, RL = 3kΩ

0.1

Total Shutdown Current

into IN, INS

ISD_TOTAL

VEN = 0V, VIN = VINS = 1.5V, includes IN

leakage, TA = +25°C, RL = 3kΩ

0.5

100

Inductor Peak Current

Limit

IPEAK

Note 6

0.8

1.2

LX Maximum Duty

Cycle

Note 7

LX Maximum On-Time

tON

Note 7

VOUT = 1.8 V

280

365

450

VOUT = 3 V

270

300

330

LX Minimum Off-Time

tOFF

Note 7

VOUT = 1.8V

120

150

VOUT = 3 V

100

120

N-Channel On-

Resistance

LS_RDS(ON)

VOUT = 3.3V

Ω

P-Channel On-

Resistance

HS_RDS(ON)

VOUT = 3.3V

150

Ω

Synchronous rectifier

Zero Crossing as a

percent of Peak Current

Limit

IZX

VOUT = 3.3V,

Note 8

2.5

7.5

Enable Voltage

Threshold

VIL

When LX switching stops, EN falling, TA

= -40°C to +85°C

250

500

When LX switching stops, EN falling, TA

= -40°C to +125°C

150

VIH

EN rising, TA = -40°C to +85°C

600

850

EN rising, TA = -40°C to +125°C

900

Enable Input Leakage

IEN_LK

VEN = 5.5V, TA = +25°C

0.1

Required Select

Resistor Accuracy

RSEL_ACC

Use the nearest ±1% resistor from

RSEL

Selection Table.

-1

Select Resistor

Detection Time

SEL

VOUT = 1.8V, CR

SEL

< 2pF, Note 9

360

600

1320

µs

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