参数资料
| 型号： | MIC68200-1.2YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 15/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.2V 1A 10-MLF |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.2V |
| 输入电压： | 1.65 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.3V @ 2A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1A |
| 电流 - 限制（最小）： | 2A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘，10-MLF? |
| 供应商设备封装： | 10-MLF?（3x3） |
| 包装： | 标准包装 |
| 产品目录页面： | 1109 (CN2011-ZH PDF) |
| 其它名称： | 576-1953-6 |
Micrel, Inc.
Ratiometric Tracking
Ratiometric tracking allows independent ramping
speeds for both regulators so that the regulation
voltage is reached at the same time. This is
accomplished by adding a resistor divider between the
Master output pin and the Slave RC pin. The divider
should be scaled such that the Slave RC pin reaches
or exceeds the target output voltage of the Slave as
the Master reaches its target voltage.
Fixed Voltage Devices
MIC68200
Ratiometric tracking may be used with adjustable
parts by simply connecting the RC pins of the Master
and Slave. Use a single RC capacitor of twice the
normal value (since twice the current is injected into
the single RC cap). Alternatively, adjustable parts may
use ratiometric tracking in a manner similar to
standard tracking, with the tracking divider changed to
the same resistor ratio driving the Master Adj/Sns pin.
Adjustable Voltage Devices
Master
U1
Master
V IN = 2.5V
EN
1nF
1nF
MIC68200-1.8YML
IN U1 OUT
EN SNS
RC
DLY GND POR
10K
1K
1.5K
VOUT1
4.7μF
V IN = 3.3V
EN
3nF
1nF
MIC68200YML
IN OUT
EN SNS
RC
DLY GND POR
10K Ω
10.0K
2.5K
VOUT1
4.7μF
Slave
U2
Slave
NC
MIC68200-1.2YML
IN U2 OUT
EN SNS
RC
DLY GND POR
VOUT2
4.7μF
POR
NC
MIC68200YML
IN OUT
EN SNS
RC
DLY GND POR
10.0K
3.83K
VOUT2
4.7μF
POR
Final Note on Tracking
The MIC68200 does not fully shutdown until the output load is discharged to near zero. If RC is driven from an external source in
a tracking configuration, and the external source does not go to zero on shutdown it may prevent complete shutdown of the
MIC68200. This will cause no damage, but some Q current will remain and may cause concern in battery operated portable
equipment. Also, when RC is driven in tracking mode, pulling EN low will not cause the output to drop. Maintaining low EN in
tracking mode simply means that the MIC68200 will shutdown when the tracking voltage gets near zero. In no case can the
MIC68200 enter the tracking mode unless EN is pulled high.
February 2011
15
M9999-022311-E
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC68200-2.5YML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC68200-2.5YML TR | 功能描述:低压差稳压器 - LDO 2A Peak FPGA/CPLD LDO with POR, Ramp Control and Sequencing RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MIC68200-2.5YML-TR | 功能描述:Linear Voltage Regulator IC Positive Fixed 1 Output 2.5V 1A 10-MLF? (3x3) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:有效 稳压器拓扑:正，固定式 电压 - 输出:2.5V 电流 - 输出:1A 电压 - 跌落（典型值）:0.3V @ 2A 稳压器数:1 电压 - 输入:最高 5.5V 电流 - 限制（最小值）:2A 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘，10-MLF? 供应商器件封装:10-MLF?（3x3） 标准包装:1 |
| MIC68200-3.3YML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: 制造商:Micrel Inc 功能描述: |
| MIC68200-3.3YML TR | 功能描述:低压差稳压器 - LDO 2A Peak FPGA/CPLD LDO with POR, Ramp Control and Sequencing RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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