SC1462A 查看數據表（PDF） - Semtech Corporation

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SC1462A

High Efficency Charge Pump Doubler

Semtech Corporation 

5+"$ )

POWER MANAGEMENT

Absolute Maximum Rating

Parameter

Symbol

Maximum Units

Supply Voltage

VIN

-0.3 to +6.0

V

Output Voltage

VO

-0.3 to +12

V

VOUT Short Circuit Duration

Thermal Resistance Junction to Ambient

Operating Ambient Temperature Range

Junction Temperature Range

Storage Temperature Range

Lead Temperature (Soldering) 10 seconds

SC

Indefinite

θJA

230

°C/W

TA

-40 to +85

°C

TJ

-40 to +125

°C

TSTG

-65 to +150

°C

TL

300

°C

Electrical Characteristics

Unless specified:

TA = -40°C to 85°C, SHDN = GND, 1.65V ≤ VIN ≤ 5.5V, Frequency =32 kHz, CIN = COUT = CBUCKET = 1.0µF (ESR = 0.3Ω).

Parameter

Input Supply Voltage

Input Supply Current

Output Resistance(5)

Output Resistance(5)

Total Switch Resistance(6)

Total Switch Resistance (6)

Output Current

Oscillator Frequency

Short Circuit Current

Output ripple (pk-pk) (1) (3)

Power Efficiency(1)

Maximum Output Voltage(3)

Input High Threshold

Input Low Threshold

Symbol

VIN

IIN

ROUT

ROUT

RSW

RSW

IO

OSC

ISC

VR

η

Vout

VIH

VIL

Conditions

IO = 0, VIN = 2.5V

IO = 0, VIN= 5.0V

SHDN = VIN

VIN = 2.5V

VIN= 5.0V

VIN= 2.5V

VIN= 5.0V

VIN= 2.5V

VOUT = 0V

IO = 8mA, VIN = 2.5V

IO = 8mA, VIN = 2.5V

IO = 15mA, VIN = 5.0V

IO = 0mA

SHDN pin, 2.5V ≤ VIN ≤ 5.5V

SHDN pin, 2.5V ≤ VIN ≤ 5.5V

MIN TYP MAX Units

1.65

5.5 V

55 75 µA

160 225 µA

0.1 1 µA

50 60

Ω

38 45

Ω

8.5

Ω

7.4

Ω

25 mA

22 32 42 KHz

100

mA

290

mV

90

%

90

%

2*Vin

V

1.6

V

0.4 V

 2001 Semtech Corp.

2

www.semtech.com

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