SMB110

Preliminary Information

Summit Microelectronics, Inc

2099 2.3 3/1/2005

11

DC OPERATING CHARACTERISTICS (CONTINUED)

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

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Error Amplifier

Threshold Voltage accuracy

0.2

%

TS

Temperature stability

0.2

%

Open loop voltage Gain

At DC

60

dB

BW

Frequency bandwidth

At AV=0 dB

30

MHz

Output source current

At 0.5V

20

µA

Output sink current

At 0.5V

800

µA

LDO

Nominal output voltage

LDO_SUPPLY = 4.2V,

3.3

V

Output voltage accuracy

Percent of 3.3V output @

10mA, LDO_SUPPLY = 4.2V

0.3

%

Load regulation error

0.3

%/V

Line regulation error

No load

0.17

%/mA

PSRR

Power supply rejection ratio

20log(Vout/Vin) @ 10kHz

50

dB

Quiescent current

50

µA

20

100

200

300

Dropout voltage

400

mV

Maximum output current

40

mA

Output Noise voltage

Peak to peak

1

mV

Inverting Output Block Channel 0

Programmable voltage set point

range

-35

-0.5

V

Output accuracy

Excluding external resistor

divider accuracy

0.5

%

Feedback voltage reference

COMP1 pin

1.0

V

Feedback voltage reference

accuracy

COMP1 pin

-0.2

+0.2

%

17

LSDRV Output ON resistance

3

Ω

High

85

95

D.C.

LSDRV Duty Cycle

Low

5

15

%

Level shift voltage reference

VREF_OUT pin programmable

in 8mV steps

1

2

V