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参数资料
| 型号： | LTC3890EUH#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/40页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 32-QFN |
| 产品培训模块： | LTC3890 - 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller |
| 标准包装： | 2,500 |
| 系列： | PolyPhase® |
| PWM 型： | 电流模式 |
| 输出数： | 2 |
| 频率 - 最大： | 850kHz |
| 占空比： | 99% |
| 电源电压： | 4 V ~ 60 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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LTC3890
CLKOUT 4 21 PGND
ABSOLUTEMAXIMUMRATINGS
(Note 1)
Input Supply Voltage (V IN ) ......................... –0.3V to 65V
Topside Driver Voltages
BOOST1, BOOST2 .................................–0.3V to 71V
Switch Voltage (SW1, SW2) ......................... –5V to 65V
(BOOST1-SW1), (BOOST2-SW2) ................ –0.3V to 6V
RUN1, RUN2 ............................................... –0.3V to 8V
Maximum Current Sourced into Pin from
Source > 8V .....................................................100μA
SENSE1 + , SENSE2 + , SENSE1 –
SENSE2 – Voltages ..................................... –0.3V to 28V
PLLIN/MODE, INTV CC Voltages ................... –0.3V to 6V
FREQ Voltage ........................................ –0.3V to INTV CC
I LIM , PHASMD Voltages ....................... –0.3V to INTV CC
EXTV CC ..................................................... –0.3V to 14V
ITH1, ITH2, V FB1 , V FB2 Voltages ................... –0.3V to 6V
PGOOD1, PGOOD2 Voltages ....................... –0.3V to 6V
TRACK/SS1, TRACK/SS2 Voltages ............. –0.3V to 6V
Operating Junction Temperature Range (Notes 2, 3)
LTC3890E, LTC3890I ......................... –40°C to 125°C
LTC3890H .......................................... –40°C to 150°C
LTC3890MP ....................................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
ORDER INFORMATION
PIN CONFIGURATION
TOP VIEW
32 31 30 29 28 27 26 25
SENSE1 – 1 24 BOOST1
FREQ 2 23 BG1
PHASMD 3 22 V IN
33
PLLIN/MODE 5 SGND 20 EXTV CC
SGND 6 19 INTV CC
RUN1 7 18 BG2
RUN2 8 17 BOOST2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
T JMAX = 150°C, θ JA = 34°C/W
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH
LTC3890EUH#PBF
LTC3890IUH#PBF
LTC3890HUH#PBF
LTC3890MPUH#PBF
TAPE AND REEL
LTC3890EUH#TRPBF
LTC3890IUH#TRPBF
LTC3890HUH#TRPBF
LTC3890MPUH#TRPBF
PART MARKING*
3890
3890
3890
3890
PACKAGE DESCRIPTION
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T A = 25°C. V IN = 12V, V RUN1,2 = 5V, EXTV CC = 0V unless otherwise noted.
(Note 2)
SYMBOL
V IN
PARAMETER
Input Supply Operating Voltage Range
CONDITIONS
MIN
4
TYP
MAX
60
UNITS
V
V FB1,2
Regulated Feedback Voltage
(Note 4) I TH1,2 Voltage = 1.2V
–40°C to 85°C, All Grades
LTC3890E, LTC3890I
LTC3890H, LTC3890MP
l
l
0.792
0.788
0.786
0.800
0.800
0.800
0.808
0.812
0.812
V
V
V
3890fc
2
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相关代理商/技术参数 |
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| LTC3890HGN-1#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LTC3890HGN-1#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 28-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX |
| LTC3890HGN-3#PBF | 制造商:Linear Technology 功能描述:IC REG CTRLR BUCK PWM CM 28SSOP 制造商:Linear Technology 功能描述:DC-DC CONTROLLER BUCK 900KHZ 制造商:Linear Technology 功能描述:BUCK DUAL CNTRL 4-60V 850K 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 900KHZ, SSOP-28 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 900KHZ, SSOP-28; Primary Input Voltage:60V; No. of Outputs:2; No. of Pins:28; Operating Temperature Min:-40C; Operating Temperature Max:150C; Operating Temperature Range:-40C to +150C ;RoHS Compliant: Yes |
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