1307 查看數據表（PDF） - Linear Technology

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1307

Single Cell Micropower 600kHz PWM DC/DC Converters

Linear Technology 

LT1307/LT1307B

ABSOLUTE AXI U RATI GS (Note 1)

VIN, SHDN, LBO Voltage ......................................... 12V

SW Voltage ............................................................. 30V

FB Voltage ....................................................... VIN + 1V

VC Voltage ................................................................ 2V

LBI Voltage ............................................ 0V ≤ VLBI ≤ 1V

Current into FB Pin .............................................. ±1mA

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

Operating Temperature Range

Commercial (Note 2) ......................... – 20°C to 70°C

Industrial ........................................... – 40°C to 85°C

Storage Temperature Range ................ – 65°C to 150°C

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

UW U

PACKAGE/ORDER I FOR ATIO

TOP VIEW

VC 1

FB 2

SHDN 3

GND 4

8 LBO

7 LBI

6 VIN

5 SW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

TJMAX = 125°C, θJA = 160°C/W

ORDER PART

NUMBER

LT1307CMS8

LT1307BCMS8

MS8 PART MARKING

LTIC

LTIB

TOP VIEW

VC 1

FB 2

SHDN 3

GND 4

8 LBO

7 LBI

6 VIN

5 SW

N8 PACKAGE

8-LEAD PDIP

S8 PACKAGE

8-LEAD PLASTIC SO

TJMAX = 125°C, θJA = 100°C/W (N8)

TJMAX = 125°C, θJA = 120°C/W (S8)

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

ORDER PART

NUMBER

LT1307CN8

LT1307CS8

LT1307IS8

LT1307BCS8

LT1307BIS8

S8 PART MARKING

1307 1307I

1307B 1307BI

ELECTRICAL CHARACTERISTICS

The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.

Commercial Grade 0°C to 70°C. VIN = 1.1V, VSHDN = VIN, LT1307/LT1307B unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

IQ

Quiescent Current

VFB

Feedback Voltage

IB

FB Pin Bias Current (Note 3)

Reference Line Regulation

Minimum Input Voltage

Not Switching (LT1307)

Not Switching (LT1307B)

VSHDN = 0V

VFB = VREF

1V ≤ VIN ≤ 2V (25°C, 0°C)

1V ≤ VIN ≤ 2V (70°C)

2V ≤ VIN ≤ 5V

q

50

90

µA

q

1.0

1.5

mA

q

1

3

µA

q 1.20

1.22

1.24

V

q

27

60

nA

0.6

1.1

%/V

1.5

%/V

q

0.3

0.8

%/V

0.92

1

V

Input Voltage Range

q1

5

V

gm

Error Amp Transconductance

AV

Error Amp Voltage Gain

∆I = 5µA

25°C, 0°C

70°C

q 25

35

65 µmhos

35

100

V/V

30

V/V

fOSC

Switching Frequency

q 550

600

750

kHz

1307fa

2

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