参数资料
| 型号： | BD8964FVM-TR |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 9/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.2A MSOP8 |
| 标准包装： | 3,000 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1 V ~ 1.8 V |
| 输入电压： | 4 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 1.2A |
| 同步整流器： | 是 |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VSSOP，8-MSOP（0.110"，2.80mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP |
BD8964FVM
Datasheet
Description of Operations
? Soft-start function
EN terminal shifted to “High” activates a soft-starter to gradually establish the output voltage with the current limited
during startup, by which it is possible to prevent an overshoot of output voltage and an inrush current.
? Shutdown function
With EN terminal shifted to “Low”, the device turns to Standby Mode, and all the function blocks including reference
voltage circuit, internal oscillator and drivers are turned to OFF. Circuit current during standby is 0μF (Typ.).
? UVLO function
Detects whether the input voltage sufficient to secure the output voltage of this IC is supplied.
of 300mV (Typ.) is provided to prevent output chattering.
Hysteresis 100mV
V CC
EN
V OUT
And the hysteresis width
Tss
Soft start
Tss
Tss
Standby mode
Operating mode
Standby
mode
Operating mode
Standby
mode
Operating mode
Standby mode
UVLO
UVLO
EN
UVLO
Fig.20 Soft start, Shutdown, UVLO timing chart
? Short-current protection circuit with time delay function
Turns OFF the output to protect the IC from breakdown when the incorporated current limiter is activated continuously for
at least 1 ms. The output thus held tuned OFF may be recovered by restarting EN or by re-unlocking UVLO.
EN
Output OFF
latch
V OUT
Limit
I L
1msec
Standby
mode
EN
Operating mode
Standby
mode
Timer latch
EN
Operating mode
Fig.21 Short-current protection circuit with time delay timing chart
www.rohm.com
? ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
9/16
TSZ02201-0J3J0AJ00050-1-2
02.MAR.2012 Rev.001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD8966FVM | 制造商:ROHM 制造商全称:Rohm 功能描述:4.0V to 5.5V, 0.8A 1ch Synchronous Buck Converter integrated FET |
| BD8966FVM_10 | 制造商:ROHM 制造商全称:Rohm 功能描述:Low Noise High Efficiency Step-down Switching Regulator with Built-in Power MOSFET |
| BD8966FVM_12 | 制造商:ROHM 制造商全称:Rohm 功能描述:4.0V to 5.5V, 0.8A 1ch Synchronous Buck Converter integrated FET |
| BD8966FVM-TR | 功能描述:IC REG BUCK SYNC ADJ 0.8A MSOP8 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:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
| BD8966FVM--TR | 制造商:ROHM 制造商全称:Rohm 功能描述:Low Noise High Efficiency Step-down Switching Regulator with Built-in Power MOSFET |
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