SMB118/218

Summit Microelectronics, Inc

2107 3.0 10/15/2008

11

DC OPERATING CHARACTERISTICS (CONTINUED)

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

Channel [6:4] – Step-down BUCK

Voltage (nominal set point)

VIN

+0.5

VIN

V

T = -40°C to +85°C

-2

±1

+2

%

Voltage accuracy

T = 0°C to +70°C

-2

±1

+2

%

Feedback voltage reference

range

Programmable in 4mV steps

0

1

V

Error amp transconductance

160

umho

Error amp output drive

±20

µA

CS amplifier transresistance

1.2

Ω

HS Switch Resistance

320

m

Ω

Output High

5.5

Ω

LS Gate drive impedance

Output Low

2.7

Ω

Clamp threshold voltage

Programmable 1.0, 1.1, 1.2,

1.5V

1.0

1.5

V

Clamp threshold voltage

Accuracy

Clamp threshold 1.0 and 1.5V

±5

%

100

%

D.C.

Duty Cycle

Minimum, PWM mode,

15

30

%

PLEASE NOTE: The SMB118 has entered End-of-Life.