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参数资料
| 型号： | LTC3568EDD#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | 3 X 3 MM, PLASTIC, MO-229WEED-2, DFN-10 |
| 文件页数： | 12/18页 |
| 文件大小： | 300K |
| 代理商： | LTC3568EDD#TR |
LTC3568
3568fa
fOSC
Oscillator Frequency
RT = 324k
(Note 7)
0.85
1
1.15
4
MHz
fSYNC
Synchronization Frequency
(Note 7)
0.4
4
MHz
ILIM
Peak Switch Current Limit
ITH = 1.3
2.4
3
4
A
RDS(ON)
Top Switch On-Resistance (Note 6)
VIN = 3.3V
0.11
0.15
Ω
Bottom Switch On-Resistance (Note 6)
VIN = 3.3V
0.11
0.15
Ω
ISW(LKG)
Switch Leakage Current
VIN = 6V, VITH/RUN = 0V, VFB = 0V
0.01
1
A
VUVLO
Undervoltage Lockout Threshold
VIN Ramping Down
2
2.25
V
PGOOD
Power Good Threshold
VFB Ramping Up, SHDN/RT = 1V
VFB Ramping Down, SHDN/RT = 1V
6.8
–7.6
%
RPGOOD
Power Good Pull-Down On-Resistance
118
200
Ω
elecTrical characTerisTics
Theldenotesthespecificationswhichapplyoverthefulloperating
temperaturerange,otherwisespecificationsareatTA=25°C.VIN=3.3V,RT=324kunlessotherwisespecified.(Note2)
Note1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note2: The LTC3568 is tested under pulsed load conditions such that TJ =
TA. The LTC3568E is guaranteed to meet performance specifications from
0°C to 85°C. Specifications over the –40°C to 125°C operating junction
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3568I is guaranteed over the
full –40°C to 125°C operating junction temperature range. The maximum
ambient temperature is determined by specific operating conditions in
conjunction with board layout, the rated package thermal resistors and
other environmental factors.
Note3: The LTC3568 is tested in a feedback loop which servos VFB to the
midpoint for the error amplifier (VITH = 0.6V).
Note4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note5: TJ is calculated from the ambient TA and power dissipation PD
according to the following formula:
TJ = TA + (PD 43°C/W)
Note6: Switch on-resistance is guaranteed by correlation to wafer level
measurements.
Note7: 4MHz operation is guaranteed by design but not production tested
and is subject to duty cycle limitations (see Applications Information).
Note8: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
相关PDF资料 |
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| LTC3568IDD | 4 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, PDSO10 |
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| LTC3569IFE#PBF | 2.5 A SWITCHING REGULATOR, 3000 kHz SWITCHING FREQ-MAX, PDSO16 |
| LTC3569IUD#PBF | 2.5 A SWITCHING REGULATOR, 3000 kHz SWITCHING FREQ-MAX, PQCC20 |
| LTC3569IUDC#PBF | 2.5 A SWITCHING REGULATOR, 3000 kHz SWITCHING FREQ-MAX, PQCC20 |
相关代理商/技术参数 |
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| LTC3568IDD#PBF | 功能描述:IC REG BUCK SYNC ADJ 1.8A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3568IDD#PBF | 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic 4MHz 1.8A Synch St 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, 4MHz, 1.8A Synch St |
| LTC3568IDD#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 1.8A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3569 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7-Channel Confi gurable High Power PMIC |
| LTC3569EFE | 制造商:Linear Technology 功能描述:DC/DC Converter Chip |
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