参数资料
| 型号： | ISL78200AVEZ |
| 厂商： | Intersil |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC 20HTSSOP |
| 标准包装： | 740 |
| 类型： | 降压（降压），升压（升压） |
| 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） |
| 包装： | 管件 |
| 供应商设备封装： | 20-HTSSOP |
2.5A Regulator with Integrated High-Side MOSFET for
Synchronous Buck or Boost Buck Converter
ISL78200
The ISL78200 is a synchronous buck controller with a 90m ?
high-side MOSFET and low-side driver integrated. The ISL78200
supports wide input range of 3V to 40V in buck mode. It supports
2.5A continuous load under conditions of 5V V OUT , V IN range of
8V to 36V, 500kHz and +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 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 section “Output
Current” on page 14 for more details.
The ISL78200 has flexible selection of operation modes of forced
PWM mode and PFM mode. In PFM mode, the quiescent input
current is as low as 300μA and can be further reduced to 180μA
with AUXVCC connected to V OUT under 12V V IN and 5V V OUT
application. The load boundary between PFM and PWM can be
programmed to cover wide applications.
The low-side driver can be either used to drive an external low-side
MOSFET for a synchronous buck, or left unused for a standard
non-synchronous buck. The low-side driver can also be used to
drive a boost converter as a pre-regulator that greatly expands the
operating input voltage range down to 2.5V or lower (refer to
page 5).
The ISL78200 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
condition; in addition, the hiccup overcurrent mode is also
implemented to guarantee reliable operations under harsh short
conditions.
The ISL78200 has comprehensive protections against various faults
including overvoltage and over-temperature protections, etc.
Features
? Buck Mode: Input Voltage Range 3V to 40V (Refer to “Input
? Boost Mode Expands Operating Input Voltage Lower Than
2.5V (Refer to “Input Voltage” on page 14 for more details)
? Selectable Forced PWM Mode or PFM Mode
? 300μA IC Quiescent Current (PFM, No Load); 180μA Input
Quiescent Current (PFM, No Load, V OUT Connected to AUXVCC)
? Less than 3μA Shut Down Input Current (IC Disabled)
? Operational Topologies
- Synchronous Buck
- Non-Synchronous Buck
- Two Stage Boost Buck
? Programmable Frequency from 200kHz - 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
PGOOD
EN
MODE
SYNC
AUXVCC
VCC
ILIMIT
ISL78200
VIN
BOOT
PHASE
VIN
VOUT
95
90
85
80
75
70
12V V IN
6V V IN
24V V IN
40V V IN
SS
LGATE
PGND
65
60
EXT_BOOST
FS
SGND
COMP
FB
55
50
0.1m
1m
10m
100m
1
2.5
LOAD CURRENT (A)
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. EFFICIENCY, SYNCHRONOUS BUCK, PFM MODE,
V OUT 5V, T A = +25°C
December 24, 2013
FN7641.2
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 2012, 2013. 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 |
参数描述 |
|---|---|
| ISL78200AVEZ-T | 功能描述:IC REG BUCK BOOST SYNC 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 |
| ISL78201AVEZ-T | 制造商:Intersil Corporation 功能描述:2.5A SYNC BUCK W PRE-BOOST REG, 20LD HTSSOP 4.4MM, T&R - Tape and Reel |
| ISL78201AVEZ-TR5303 | 制造商:Intersil Corporation 功能描述: 制造商:Intersil Corporation 功能描述:HARMAN BECKER ISL78201AVEZ-T W/SPECIAL CHANGE CONTROL, 12 MO - Tape and Reel |
| ISL78205 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:2.5A Buck Controller with Integrated High-Side MOSFET |
| ISL78205AVEZ | 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 |
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