L2800(Old_V) データシートの表示（PDF） - Unisonic Technologies

部品番号

コンポーネント説明

メーカー

L2800
(Rev.:Old_V)

SWITCHING REGULATOR CONTROLLER(LOW VOLTAGE)

Unisonic Technologies 

UTC L2800 LINEAR INTEGRATED CIRCUIT

RECOMMENDED OPERATING CONDITIONS (Ta=25°C)

PARAMETER

Power Supply Voltage

Error Amplifier Input Voltage

BR/CTL Pin Input Voltage

Output Source Current

Output Sink Current

SCP Pin Capacitance

Phase Compensation Capacitance

Output Current Setting Resistance

Timing Resistance

Timing Capacitance

Oscillation Frequency

Operating Temperature

SYMBOL

Vcc

VI

VBR

IO+

IO-

CPE

CP

RB

RT

CT

fosc

Top

MIN

1.8

-0.2

-0.2

-40

150

1.0

100

10

-30

TYP

0.1

0.1

390

3.0

270

500

+25

MAX

15

1.0

Vcc

40

5000

10.0

10000

1000

+85

UNIT

V

V

V

mA

mA

µF

µF

Ω

kΩ

pF

kHz

°C

ELECTRICAL CHARACTERISTICS (Ta=25°C, VCC=+2V)

PARAMETER

SYMBOL TEST CONDITIONS

Circuit to prevent

Reset Voltage

malfuncition at low input

oltage (U.V.L.O)

Threshold Voltage

Soft Start

Charging Current

Voltage at soft start

completion

Short Circuit

Charging Current

Detection(S.C.P.)

Threshold Voltage

Sawtooth Wave

Oscillation Frequency

Oscillator(OSC)

Frequency Input

Stability

Frequency Variation

With Temperature

Error Amplifier

Input Threshold Voltage

VT Input Stability

VT Variation With

Temperature

Input Bias Current

Voltage Gain

Frequency Bandwidth

Maximum Output

Voltage Range

Output Source Current

Output Sink Current

Idle Period Adjustment

Section

Maximum Duty Cycle

Output Section

Output Voltage

Output Source Current

Output Sink Current

Pull Down Resistance

VR

VTH

Ics

Vts

Icpc

VtPC

fosc

fdV

fdT

VT

VTdV

VTdT

IB

Av

BW

VOM+

VOM-

IOM+

IOM-

tDUTY

VOH1

VOH2

VOL1

VOL2

IO+

IO-

RO

VSCP=0V

VSCP=0V

RT=3.0kΩ, CT=270pF

Vcc=2V ~ 15V

Ta=-30°C ~ +85°C

VFB=450mV

Vcc=2V ~ 15V

Ta=-30°C ~ +85°C

VIN=0V

AV=0dB

VFB=0.45V

RT=3.0kΩ, CT=270pF

VFB=0.8V

RB=390Ω, Io=-15mA

RB=750Ω, Vcc=1.8V

Io= -10mA

RB=390Ω, Io=15mA

RB=750Ω, Vcc=1.8V

Io=10mA

RB=390Ω, Vo=0.9V

RB=390Ω, Vo=0.3V

MIN TYP MAX UNIT

0.9 V

1.1 1.3 1.5 V

-1.5 -1.0 -0.7 µA

0.7 0.8 0.9 V

-1.5 -1.0 -0.7 µA

0.7 0.8 0.9 V

400 500 600 kHz

2 10 %

5

%

480 500 520 mV

5 20 mV

1

%

-1.0 -0.2 1.0 µA

70 100 145 V/V

6

MHz

0.78 0.87

V

0.05 0.2 V

-40 -24 µA

24 40

µA

65 75 85 %

1.0 1.2

V

0.8 1.0

V

0.1 0.2 V

0.1 0.2 V

-30 -20 mA

30 60

mA

20 30 40 kΩ

UTC

UNISONIC TECHNOLOGIES CO., LTD. 3

QW-R121-010,A

Share Link: