- 您现在的位置：买卖IC网 > PDF目录20720 > MAX8862LESE+T (Maxim Integrated)IC REG LDO 4.95V/ADJ 16-SOIC PDF资料下载
参数资料
| 型号： | MAX8862LESE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 4.95V/ADJ 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式或可调式 |
| 输出电压： | 4.95V，2 V ~ 11 V |
| 输入电压： | 2.5 V ~ 11.5 V |
| 电压 - 压降（标准）： | 0.16V @ 200mA，0.16V @ 100mA |
| 稳压器数量： | 2 |
| 电流 - 输出： | 250mA（最小），100mA（最小） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
Low-Cost, Low-Dropout, Dual Linear Regulator
Thermal Overload Protection
Thermal overload protection limits the MAX8862’s total
power dissipation. When the junction temperature
MAX8862
OUT_
R1
OUTPUT
exceeds T J = +160°C, the thermal sensor sends a sig-
nal to the shutdown logic, turning off the pass transis-
tors and allowing the device to cool down. The thermal
sensor turns the pass transistors on again after the IC’s
junction temperature decreases by 20°C. If the thermal
SET_
R2
GND
Figure 2. Adjustable Output Voltage
Reference
The MAX8862 provides a precision 1.25V reference at
REF2. Bypass REF2 with a 0.1μF capacitor to ground.
Larger bypassing capacitors will further reduce the
secondary regulator’s wideband noise.
Shutdown
The MAX8862’s regulators have individual shutdown
controls. A logic low on either SHDN1 or SHDN2 turns
off the corresponding internal reference, error com-
parator, and pass transistors’ control logic, reducing
quiescent current to less than 1μA.
Current Limiting
The MAX8862 features a current limit for each regula-
tor. It monitors and controls the pass transistor’s gate
voltage, limiting the output current to 580mA for the
main regulator and 250mA for the secondary regulator.
The current limits apply to all input and output voltage
conditions. The outputs can be shorted to ground for
an indefinite period of time if the package can dissipate
(V IN1 x I LIM1 + V IN2 x I LIM2 ) without exceeding T J =
+150°C (see the Power Dissipation and Operating
Region section).
overload condition persists, OUT1 and OUT2 pulse on
and off.
Thermal overload protection is designed to protect the
MAX8862 during fault conditions. For continuous oper-
ation, the absolute maximum junction temperature rat-
ing of T J = +150°C should not be exceeded.
Reverse-Battery Protection
This feature protects the MAX8862 against polarity
reversal at the supply inputs. The inputs can handle
negative voltages up to -12V without suffering any ill
effects. When the input polarity is reversed, the output
will be at the same potential as ground, and no current
will flow from the output back to the input. This feature
protects both the device and the supply-voltage
source. The reverse currents that flow back to the input
are due to R PWROK1 , R SHDN1 , and R SHDN2 . These
currents are approximately: I REV1 = | V IN1 | / (R SHDN1 +
R PWROK1 ) and I REV2 = | V IN2 | / R SHDN2 . When operat-
ing the MAX8862 in continuous mode (V SHDN1 = V IN1
and V SHDN2 = V IN2 ) place a resistor (>20k ? ) between
shutdown and supply inputs to limit the current flow in
case the battery is reversed.
_______________________________________________________________________________________
9
相关PDF资料 |
PDF描述 |
|---|---|
| MAX8559ETAAK+T | IC REG LDO 3.3V/2.8V .3A 8-TDFN |
| MAX8559ETADK+T | IC REG LDO 3.15V/2.8V .3A 8-TDFN |
| MAX8559ETA88+T | IC REG LDO 1.5V .3A 8-TDFN |
| RGM06DRMH | CONN EDGECARD 12POS .156 WW |
| HSM44DSXN | CONN EDGECARD 88POS DIP .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8862RCSE | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8862RESE | 功能描述:低压差稳压器 - LDO 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 |
| MAX8862RESE+ | 功能描述:低压差稳压器 - LDO Dual Linear Regulator 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 |
| MAX8862RESE+T | 功能描述:低压差稳压器 - LDO Dual Linear Regulator 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 |
| MAX8862RESE-T | 功能描述:低压差稳压器 - LDO 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 |
发布紧急采购，3分钟左右您将得到回复。