SMB119NC 查看數據表（PDF） - Summit Microelectronics

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SMB119NC

Seven-Channel Programmable DC-DC Power Manager

Summit Microelectronics 

SMB119

DC OPERATING CHARACTERISTICS (CONTINUED)

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

Symbol

Parameter

Notes

Min Typ Max

Channel [2:1] – Step-up BOOST

VOUT

Voltage (nominal set point)

VBATT = 4.2V, ILOAD = 0A

VIN

+35

VFB

Feedback Voltage Reference Programmable in 4mV steps

0

1

∆VFB

Feedback Voltage Accuracy at

FB[2:1] Pin (Note 2)

VFB=0.836V

-3

±1

+3

gm

Error amp transconductance

IEA

Error amp output drive

RCS

CS amplifier transresistance

IOL-SEQ

PCHSEQ pull down current

RDRVL

LS Gate drive impedance

Vcl

Vcl_acc

Clamp threshold voltage

Clamp threshold voltage

Accuracy

D.C.

Duty Cycle

Channel 3 - LDO

VOUT

Voltage (nominal set point)

∆VOUT

∆VLINE

Voltage accuracy

Line regulation

∆VLOAD

Load regulation

RSENSE = 0.1Ω, ILOAD = 350mA

VOL-SEQ = 1V

60

Output High

Output Low

Programmable

1.0

Clamp threshold 1.0 and 1.5V

Maximum (clamp on)

85

Minimum, PWM mode

LDOIN3=4.2V, ILOAD=0A

LDOIN3=4.2V, ILOAD=0A,

VOUT=2.5V

LDOIN3=4.2V, ILOAD=0A,

Vo=2.5, Vin = 4.2V

+1.5

-2.5

145

±20

0.8

1.6

100

6.0

2.5

1.5

±5

90

98

16

30

+3.75

±0.5 +2.5

1

1

∆VTRANS

PSRR

IOUTMAX

VDO

Load Transient Regulation

Input Ripple Rejection

Maximum output Current

Dropout voltage

Step Load: 5mA to 50mA

COUT = 10uF

LDOIN2=3.8V, VOUT=3.3V

ILOAD=50mA, VP-P=200mV,

F=1kHz

LDOIN3=3.2V, VOUT=2.5V

ILOAD=50mA

50

45

50

75

150

Unit

V

V

%

umho

µA

Ω

µA

Ω

Ω

V

%

%

%

V

%

mV/V

mV/

mA

mV

dB

mA

mV

Summit Microelectronics, Inc

8

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