參數(shù)資料
型號(hào): LTC3672BEDC-1#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1.1 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 2 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, DFN-8
文件頁(yè)數(shù): 5/12頁(yè)
文件大?。?/td> 167K
代理商: LTC3672BEDC-1#PBF
LTC3672B-1
2
3672B1f
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
VIN ............................................................... –0.3V to 6V
VIN1, BUCKOUT, ENALL, SW,
LDO2 ...........–0.3V to the lesser of (VIN + 0.3V) or 6V
LDO1 ............. –0.3V to the lesser of (VIN1 + 0.3V) or 6V
Junction Temperature ........................................... 125°C
Operating Temperature Range...................... –40 to 85°C
Storage Temperature Range....................... –65 to 125°C
(Notes 1, 2, 3)
TOP VIEW
SW
GND
ENALL
BUCKOUT
VIN
LDO2
LDO1
VIN1
DC PACKAGE
8-LEAD (2mm 2mm) PLASTIC DFN
9
4
1
2
3
6
5
7
8
TJMAX = 125°C, θJA = 102°C/W, θJC = 20°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS The denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 3.6V, unless otherwise noted.
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3672BEDC-1#PBF
LTC3672BEDC-1#TRPBF
LCWH
8-Lead (2mm
× 2mm) Plastic DFN
–40°C to 85°C
Consult LTC Marketing for parts specied with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based nish parts.
*For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Voltage Range
2.9
5.5
V
VUVLO
VIN Undervoltage Lockout Threshold
VIN Rising
1.7
2
V
Undervoltage Lockout Hysteresis
12
100
mV
IQ,VIN
VIN Quiescent Current
All Outputs Enabled, No Load
Shutdown
(Note 4)
VBUCKOUT = 1.9V
VENALL = 0V
260
400
1
μA
IQ,VIN1
VIN1 Quiescent Current
All Outputs Enabled, No Load
Shutdown
VIN1 = 1.8V
VENALL = 0V
2.3
5
1
μA
VIL
ENALL Pin Logic Low Voltage
0.4
V
VIH
ENALL Pin Logic High Voltage
1.2
V
RENALL
ENALL Pin Pulldown Resistance
5.5
M
Ω
Synchronous Buck Regulator
fOSC
Oscillator Frequency
1.8
2.25
2.7
MHz
VBUCKOUT
Regulated Output Voltage
1.755
1.8
1.845
V
IMAXP
PMOS Switch Maximum Peak Current (Note 5)
550
800
1100
mA
IOUT,BUCK
Available Output Current
400
mA
RP,BUCK
PMOS Switch On-Resistance
0.6
Ω
RN,BUCK
NMOS Switch On-Resistance
0.7
Ω
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