SMB110

Preliminary Information

Summit Microelectronics, Inc

2099 2.3 3/1/2005

10

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

Temperature Under Bias .................... -55

Storage Temperature.......................... -65

Terminal Voltage with Respect to GND:

VBATT Supply Voltage ................... -0.3V to +6.5V

HVSUP Supply Voltage .................. -0.3V to +6.5V

LDO_SUPPLY ................................ -0.3V to +6.5V

All Others ...................................... -0.3V to VBATT

Output Short Circuit Current .................…………100mA

Reflow Solder Temperature (30 secs)................. 260

Junction Temperature.......................................... 150

ESD Rating per JEDEC ....................................... 2000V

Latch-Up testing per JEDEC.............................

Commercial Temperature Range............... 0°C to +70°C

VBATT Supply Voltage ..............................2.7V to +6.0V

HVSUP Supply Voltage..............................2.7V to +6.0V

LDO_SUPPLY........................................... GND to +6.0V

All Others.................................................GND to VBATT

Package Thermal Resistance (

32 Lead QFN. ………..……………..……………...…TBD

Moisture Classification Level 3 (MSL 3) per J-STD- 020

RELIABILITY CHARACTERISTICS

Data Retention ................................................. 100 Years

Endurance..................................................100,000 Cycle

Temperature Range

0°C to +70°C

Note - The device is not guaranteed to function outside its operating rating. Stresses 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 outside those listed in the operational sections of the specification is not implied.

Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. Devices

are ESD sensitive. Handling precautions are recommended.

DC OPERATING CHARACTERISTICS

(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VBATT

Input supply voltage

Input supply voltage

(operational)

2.7

6.0

V

Linear regulator supply voltage

Internally multiplexed with

VBATT

2.7

6.0

V

Buck driver supply voltage

Gate drive voltage

2.7

6.0

V

VBATT rising

2.2

Undervoltage lockout

VBATT falling

2.0

V

Monitoring current

All voltage inputs monitored.

No supplies switching,

VBATT at 4.2V, LDO on with

no output enabled

330

µA

Switching current for one output

enabled

Current drawn when one

output enabled

1.2

mA

Total current all channels

switching.

1

VBATT at 4.2V, LDO on with

no load

2.2

mA

Internal voltage reference

0.995

1.005

V

Oscillator

Oscillator frequency

800

kHz

Oscillator frequency accuracy

-10

+10

%

Oscillator peak to peak

1

V

Frequency stability for voltage

0.1

%/V

Frequency stability for

temperature

0.04

%/°C