SMB118 Просмотр технического описания (PDF) - Summit Microelectronics

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SMB118

Six-Channel Programmable DC-DC Power Managers with Battery Charger

Summit Microelectronics 

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

SMB118/218

DC OPERATING CHARACTERISTICS (CONTINUED)

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

Channel [6:4] – Step-down BUCK

VOUT

∆VOUT

Voltage (nominal set point)

Voltage accuracy

VIN[6:4] 4.2V, ILOAD=0A

Note 2, VOUT = 2.5V,

T = -40°C to +85°C

Note 2, VOUT = 1.2V,

T = 0°C to +70°C

+0.5

VIN

-2

±1

+2

-2

±1

+2

VFB

Feedback voltage reference

range

Programmable in 4mV steps

0

1

gm

Error amp transconductance

160

IEA

Error amp output drive

±20

RCS

CS amplifier transresistance ILOAD = 500mA

1.2

RHS

HS Switch Resistance

ILOAD = 500mA

320

Output High

5.5

RDRVL

LS Gate drive impedance

Output Low

2.7

Vcl

Clamp threshold voltage

Programmable 1.0, 1.1, 1.2,

1.5V

1.0

1.5

Vcl_acc

Clamp threshold voltage

Accuracy

Clamp threshold 1.0 and 1.5V

±5

D.C.

Duty Cycle

Maximum, VBATT = 4.2V

Minimum, PWM mode,

VBATT = 4.2V

100

15

30

V

%

%

V

umho

µA

Ω

mΩ

Ω

Ω

V

%

%

%

Summit Microelectronics, Inc

2107 3.0 10/15/2008

11

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