Rainbow Electronics MAX16024 User Manual

Page 2

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MAX16023/MAX16024

Battery-Backup Circuits with
Regulated Output Voltage

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V

CC

= 1.53V to 5.5V, V

BATT

= 3V, reset not asserted, T

A

= T

J

= -40°C to +85°C, C

OUT

= 10µF, unless otherwise noted. Typical val-

ues are at T

A

= T

J

= +25°C.) (Note 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

V

CC

, BATT, OUT to GND..........................................-0.3V to +6V

RESET, PFO, BATT ON (all open drain)

to GND..................................................................-0.3V to +6V

RESET, PFO, BATT ON (all push-pull)

to GND .................................................-0.3V to (V

OUT

+ 0.3V)

PFI, CEIN, CEOUT to GND .......................-0.3V to (V

OUT

+ 0.3V)

MR to GND .................................................-0.3V to (V

CC

+ 0.3V)

Input Current
V

CC

Peak Current.....................................................................1A

V

CC

Continuous Current ...............................................250mA

BATT Peak Current .......................................................500mA
BATT Continuous Current ...............................................70mA

Output Current

OUT Short Circuit to GND Duration ....................................10s
RESET, BATT ON, CEOUT..............................................20mA

Continuous Power Dissipation (T

A

= +70°C)

8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW
10-Pin TDFN (derate 24.4mW/°C above +70°C) .......1951mW

Thermal Resistance (Note 1)

θ

JA

(8-Pin and 10-Pin TDFN)........................................41°C/W

Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage Range

V

CC,

V

BATT

(Note 3)

1.53

5.5

V

LDO = 1.2V

4.3

6

LDO = 1.8V

4.7

7

LDO = 2.5V

5.2

7.5

LDO = 3V

5.5

8

V

CC

= LDO + 0.5V,

no load

LDO = 3.3V

5.7

8

LDO = 1.2V

16

20

LDO = 1.8V

16

21

LDO = 2.5V

16

18.1

LDO = 3V

17

18.6

Supply Current

I

CC

V

CC

= LDO + 0.5V,

I

OUT

= 20mA

LDO = 3.3V

17

19

µA

Supply Current in Battery-Backup
Mode

I

BATT

V

CC

= 0, V

BATT

= 3V,

no dropout, no load

3.5

5.26

µA

BATT Standby Current

V

CC

> V

BATT

+ 0.2V

-0.01

+0.01

µA

SET Reference Voltage

V

SET

MAX16024_TB_, V

CC

= 2.2V

1.144

1.2

1.272

V

SET Input Leakage Current

MAX16024_TB_, SET = 1.2V

-20

+20

nA

Output Voltage Range

V

OUT

MAX16024_TB_, V

CC

> V

OUT

1.8

5.25

V

LDO = 1.2V

1.145

1.2

1.270

LDO = 1.8V

1.704

1.8

1.900

LDO = 2.5V

2.368

2.5

2.634

LDO = 3V

2.837

3

3.165

Output Voltage Accuracy

I

OUT

= 1mA

LDO = 3.3V

3.114

3.3

3.482

V

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to

www.maxim-ic.com/thermal-tutorial

.

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