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| 型号： | LM3686TLE-AAEF/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 8/27页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC .9A TRPL 12USMD |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 3 |
| 输出电压： | 1.2V，1.8V，2.8V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流/电压模式 |
| 频率 - 开关： | 3MHz |
| 电流 - 输出： | 900mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFBGA |
| 包装： | 标准包装 |
| 供应商设备封装： | 12-uSMD |
| 产品目录页面： | 1288 (CN2011-ZH PDF) |
| 其它名称： | LM3686TLE-AAEFDKR |
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SNVS520E – AUGUST 2008 – REVISED MAY 2013
Electrical Characteristics
Linear Regulator — LDO (1)(2)(3)(4) (continued)
Symbol
Δ V IN_LDO / Δ V BATT
Parameter
Line regulation (6)
Conditions
V IN_LDO = (V OUT_LDO(NOM) + 0.3V) to
Min
Typical Limit
Typ
0.2
Max
Units
mV/V
5.5V
V DROP
I Q
I SC-LDO
Dropout voltage (7)
Quiescent current
Short circuit current limit
I OUT = 300 mA
V en = 0.95V, I OUT = 0 mA
V OUT = GND
350
120
50
200
80
mV
μA
mA
System Characteristic (8)
PSRR
Power supply rejection
ratio
EN_DC = EN_LILO = GND
f = 1 kHz, I OUT = 200 mA
f = 10 kHz, I OUT = 200 mA
Signal to V IN_LDO = 3.6V
85
70
dB
Output noise voltage (9)
BW = 10 Hz to 100 kHz,
e N_LDO
V IN_LDO = 3.6V
6.7
μV RMS
I OUT = 200 mA
Δ V IN_LDO
Dynamic line transient
response
V IN_LDO = 3.8V to 4.4V
tr, tf = 30 μs
+/-2 (10)
mV
I OUT = 1 mA
Δ V OUT_LDO
Dynamic load transient
response
Pulsed load 1 mA & 300 mA
tr, tf = 10 μs
+/-30 (10)
mV
(6)
(7)
(8)
(9)
To calculate the output voltage from the line regulation specified, use the following equation: Δ V OUT = Line Regulation (%/V) x Nominal
V OUT (V) x Δ V IN (V).
Dropout voltage is defined as the input to output voltage differential at which the output voltage falls to 100 mV below the nominal output
voltage.
Specified by design. Not production tested.
The noise performance target is applied to PWM mode operation and this does not apply when DCDC converter is operating in PFM
mode.
(10) For line and load transient specifications, the + symbol represents an overshoot in the output voltage and the – symbol represents an
undershoot in the output voltage. The first value signifies overshoot or undershoot at the rising edge and the second value signifies the
overshoot or undershoot at the falling edge.
8
Product Folder Links: LM3686
Copyright ? 2008–2013, Texas Instruments Incorporated
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相关代理商/技术参数 |
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|---|---|
| LM3686TLX-AADW | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Step-Down DC-DC Converter with Integrated Post Linear Regulators System and Low-Noise Linear Regulator |
| LM3686TLX-AADW/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM3686TLX-AAED | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Step-Down DC-DC Converter with Integrated Post Linear Regulators System and Low-Noise Linear Regulator |
| LM3686TLX-AAED/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM3686TLX-AAEF | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Step-Down DC-DC Converter with Integrated Post Linear Regulators System and Low-Noise Linear Regulator |
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