SC1417BEVB 데이터 시트보기 (PDF) - Semtech Corporation

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SC1417BEVB

MicroPower, 620kHz PWM, Step-up DC/DC Converter

Semtech Corporation 

SC1417B

POWER MANAGEMENT

Electrical Characteristics

Unless otherwise specified: TA = 25°C. Values in bold apply over full operating ambient temperature range. VIN = 2V, VEN = 2V, All voltages are with

respect to ground, -ve indicates current is flowing out of the pin.

Parameter

Symbol

Conditions

Min Typ Max Units

Error Amplifier Voltage Gain(1)

Maximum Output Current, L = 22uH (1)

AV(E.A.)

IOUT

Power Switch Voltage Drop (1)

(VLX-GND)

VOUT = 5.0V, VIN = 2.0V

VOUT = 10V, VIN = 5.0V

VOUT = 15V, VIN = 5.0V

ILX = 500mA

700

V/V

200

mA

250

mA

150

mA

150 250 mV

500

Power Switch Current Limit

ILIM

Switch Leakage

ILX

Internal Oscillator Frequency

fOSC

Maximum Duty Cycle

%DC

Low Battery Input Voltage Threshold

VLBI

0°C ≤ TA ≤ 85°C

-40°C ≤ TA ≤ 85°C

VLX = 5V

LX, EN open

0.70 0.95 1.20 A

0.60

0.01 3

µA

520 620 720 kHz

80 85

%

190 200 210 mV

180

210

LBI Input Current

Low Battery Output Low

Low Battery Detector Gain (1)

Enable Inputs

ILBI

VLBO(L)

AV

VLBI = 100mV

ILBO = 5µA

1MΩ load

-5 -40 nA

75 250 mV

2000

V/V

Enable Input Voltage

VIH

VIL

Enable Pin Current

IIH

IIL

VSHDN = 0V

Notes:

(1) Guaranteed by design.

(2) This device is ESD sensitive. Use of standard ESD handling precautions is required.

1.4 0.6

V

0.60 0.25 V

300 nA

-2.3 -6.0 µA

 2006 Semtech Corp.

3

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