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MAX1832

High-Efficiency Step-Up Converters with Reverse Battery Protection

Maxim Integrated 

High-Efficiency Step-Up Converters with

Reverse Battery Protection

ELECTRICAL CHARACTERISTICS (continued)

(V SHDN = +1.5V, VOUT = +3.3V, VBATT = +2V, GND = 0, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise

noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Reverse Battery Current into

OUT

VOUT = 0, VBATT = VSHDN = VLX = -3V

0

10

µA

Quiescent Current into BATT

Shutdown Current into BATT

Reverse Battery Current into

BATT

SHDN Logic Low

SHDN Threshold

SHDN Threshold Hysteresis

SHDN Input Bias Current

SHDN Reverse Battery Current

RST Threshold

RST Voltage Low

RST Leakage Current

LX Leakage Current

LX Reverse Battery Current

Maximum Load Current

Efficiency

VOUT = +3.5V,

VFB = +1.3V

TA = +25°C

TA = -40°C to +85°C

VOUT = +3.5V, VBATT = +2V, VSHDN = 0

1.8

5.0

µA

6.0

0.001

1

µA

VOUT = 0, VBATT = VSHDN = VLX = -3V

0.002 10

µA

VBATT = +1.5V to +5.5V

Rising edge

TA = +25°C

TA = -40°C to +85°C

0.3

V

1.185 1.228 1.271

V

1.170

1.286

0.02

V

VOUT = +5.5V, VSHDN = +5.5V, TA = +25°C

VOUT = 0, VBATT = VSHDN = VLX = -3V

13

100

nA

52

150

µA

MAX1833EUT/

MAX1835EUT,

falling edge

MAX1833ETT30

TA = +25°C

TA = -40°C to +85°C

TA = +25°C

TA = -40°C to +85°C

2.830 2.980 3.110

2.800

3.140

V

2.580 2.717 2.836

2.553

2.863

IRST = 1mA, VOUT = +2.5V

V RST = +5.5V

TA = +25°C

TA = -40°C to +85°C

VLX = +5.5V

TA = +25°C

TA = -40°C to +85°C

0.2

V

0.1

100

nA

1

1

100

nA

100

ILOAD

VOUT = 0, VBATT = VSHDN = VLX = -3V

VBATT = +2V, VOUT = +3.3V

0.001 10

µA

150

mA

VBATT = +2V, VOUT = +3.3V, ILOAD = 40mA

90

%

Note 1: All units are 100% production tested at TA=+25°C. Limits over the operating temperature range are guaranteed by design

and not production tested.

Note 2: Supply current into OUT. This current correlates directly to the actual battery-supply current, but is reduced in value accord-

ing to the step-up ratio and efficiency.

_______________________________________________________________________________________ 3

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