参数资料
| 型号： | ISL78205AVEZ |
| 厂商： | Intersil |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 20HTSSOP |
| 标准包装： | 740 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 0.8V |
| 输入电压： | 3 V ~ 40 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 2.2MHz |
| 电流 - 输出： | 2.5A |
| 同步整流器： | 两者兼有 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 20-HTSSOP |
2.5A Buck Controller with Integrated High-Side MOSFET
ISL78205
The ISL78205 is a synchronous buck controller with a 90m ?
high side MOSFET and low side driver integrated. The
ISL78205 supports a wide input voltage range from 3V to 40V.
Regarding the output current capability under thermal
considerations, the ISL78205 can typically support a
continuous load of 2.5A under such conditions of 5V V OUT , V IN
range of 8V to 30V, 500kHz, +85°C ambient temperature with
still air. For any specific application, the actual maximum
output current depends upon the die temperature not
exceeding +125°C (or certain maximum temperature
acceptable for the customer) with the power dissipated in the
IC, which is related to input voltage, output voltage, duty cycle,
switching frequency, ambient temperature and board layout,
etc. Refer to “Output Current” on page 12 for more details.
The ISL78205 offers the most robust current protections. It
uses peak current mode control with cycle-by-cycle current
limiting. It is implemented with frequency foldback under
current limit conditions. In addition, the hiccup overcurrent
mode is also implemented to guarantee reliable operations
under harsh short conditions.
The ISL78205 has comprehensive protections against various
faults, including overvoltage and over-temperature protections,
etc.
Features
? Ultra wide input voltage range 3V to 40V (refer to “Input
? Less than 3μA Shut down input current (IC disabled)
? Temperature range -40°C to +105°C
? Integrated 90m ? high-side MOSFET
? Operational topologies
- Synchronous buck
- Non-synchronous buck
? Programmable frequency from 200kHz to 2.2MHz and
frequency synchronization capability
? ± 1% tight voltage regulation accuracy
? Reliable cycle-by-cycle overcurrent protection
- Temperature compensated current sense
- Frequency foldback
- Programmable OC limit
- Hiccup mode protection in worst case short condition
? 20 Ld HTSSOP package
? AEC-Q100 Qualified
? Pb-Free (RoHS Compliant)
Applications
? Automotive applications
? General purpose power regulator
? 24V bus power
? Battery power
? Embedded processor and I/O supplies
100
95
6V
PGOOD
EN
VIN
VIN
90
85
12V
SYNC
VCC
ILIMIT
ISL78205
BOOT
PHASE
V OUT
80
75
70
65
60
40V
24V
SS
FS
LGATE
PGND
55
50
45
DGND
SGND
COMP
FB
40
35
30
0.0
0.5
1.0
1.5
2.0
2.5
LOAD CURRENT (A)
FIGURE 1. TYPICAL APPLICATION SCHEMATIC I - SYNCHRONOUS
BUCK
FIGURE 2. EFFICIENCY, SYNCHRONOUS BUCK, 500kHz, V OUT 5V,
T A = +25°C
February 19, 2014
FN7926.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2011-2014. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
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| ISL78205AVEZ-T | 功能描述:IC REG BUCK SYNC ADJ 20HTSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
| ISL78205AVEZ-TR5303 | 制造商:Intersil Corporation 功能描述:HARMAN BECKER ISL78205AVEZ-T W/SPECIAL CHANGE CONTROL, 12 MO - Tape and Reel |
| ISL78208 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Wide VIN Dual Standard Buck Regulator with 3A/3A Continuous Output Current |
| ISL78208ARZ | 制造商:Intersil Corporation 功能描述:ISL78208ARZ AUTOMOTIVE GRADE - 3A STANDARD BUCK REGULATOR - - Rail/Tube 制造商:Intersil Corporation 功能描述:IC REG BUCK SYNC ADJ 3A 32-QFN 制造商:Intersil Corporation 功能描述:DC-DC CONV, BUCK, ADJ, 2MHZ, QFN-32, Primary Input Voltage:28V, No. of Outputs:2, Output Current:3A, No. of Pins:32, Operating Temperature Min:-40C, Operating Temperature Max:105C, Package / Case:32-QFN , RoHS Compliant: Yes |
| ISL78208ARZ-T | 制造商:Intersil Corporation 功能描述:ISL78208ARZ AUTOMOTIVE GRADE 3A STANDARD BUCK REGULATOR - 5X - Tape and Reel 制造商:Intersil Corporation 功能描述:IC REG BUCK SYNC ADJ 3A 32-QFN 制造商:Intersil Corporation 功能描述:DC-DC CONV, BUCK, ADJ, 2MHZ, QFN-32, Primary Input Voltage:28V, No. of Outputs:2, Output Current:3A, No. of Pins:32, Operating Temperature Min:-40C, Operating Temperature Max:105C, Package / Case:32-QFN , RoHS Compliant: Yes |
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