LT1618EDD datasheet(2/16 Pages) LINER

2 / 16 page

LT1618

sn1618 1618fas

VIN, SHDN Voltage ................................................... 18V

SW Voltage .............................................................. 36V

ISP, ISN Voltage ...................................................... 36V

IADJ Voltage ............................................................... 6V

FB Voltage .............................................................. 1.5V

VC Voltage .............................................................. 1.5V

DD PART

MARKING

TJMAX = 125°C, θJA = 160°C/W

Consult LTC marketing for parts specified with wider operating temperature ranges.

LT1618EDD

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ORDER PART

NUMBER

LAFQ

ISN

ISP

IADJ

GND

SHDN

VIN

TOP VIEW

MS PACKAGE

10-LEAD PLASTIC MSOP

Junction Temperature ........................................... 125°C

Operating Temperature Range (Note 2) .. – 40°C to 85°C

Storage Temperature Range

MSOP ............................................... – 65°C to 150°C

DFN ................................................. – 65°C to 125°C

Lead Temperature (Soldering, 10 sec) (MSOP) .... 300°C

MS PART

MARKING

LT1618EMS

ORDER PART

NUMBER

LTNH

TOP VIEW

DD PACKAGE

10-LEAD (3mm × 3mm) PLASTIC DFN

SHDN

VIN

ISN

ISP

IADJ

GND

TJMAX = 125°C, θJA = 43°C/W, θJC = 3°C/W

EXPOSED PAD (PIN 11) IS GND AND

MUST BE SOLDERED TO PCB

ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 1.6V, VSHDN = 1.6V, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage

1.6

Quiescent Current

VSHDN = 1.6V, Not Switching

1.8

2.7

VSHDN = 0V

0.1

µA

Reference Voltage

Measured at FB Pin

1.250

1.263

1.276

●

1.243

1.263

1.283

Reference Voltage Line Regulation

1.6V < VIN < 18V

0.01

0.03

%/V

FB Pin Bias Current

VFB = 1.263V, VIN = 1.8V

●

±2

±12

Error Amplifier Voltage Gain

180

V/V

Error Amplifier Transconductance

∆IC = ± 5µA

160

µmho

Error Amplifier Sink Current

VFB = 1.35V, VC = 1V

µA

Error Amplifier Source Current

VFB = 1.10V, VC = 1V

µA

Current Sense Voltage (ISP, ISN)

VFB = 0V, VIADJ = 0V

●

47.5

52.5

ISP, ISN Pin Bias Currents (Note 3)

VISP = 1.85V, VISN = 1.80V, VIADJ = 0V

µA

(ISP, ISN) Common Mode Minimum Voltage

1.8

Switching Frequency

VFB = 1V

1.25

1.4

1.6

MHz

VFB = 0V

550

kHz

Maximum Switch Duty Cycle

●

Switch Current Limit

(Note 4)

1.5

2.1

2.8

LT1618EDD 数据表(PDF) 2 Page - Linear Technology

LT1618EDD 数据表(HTML) 2 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

数据表下载