3.3v稳压ic方案ht7333规格书.pdf

HT73XX Low Power Consumption LDO Selection Table Part No.Output VoltagePackageMarking HT73181.8V TO-92 SOT-89 73XX-A (for TO-92) 73XX-A (for SOT-89) HT73252.5V HT73272.7V HT73303.0V HT73333.3V HT73353.5V HT73505.0V Note: ?XX? stands for output voltages. For lead free devices, TO-92 package will add a ?#? mark at the end of the date code, whereas SOT-89 package will add a ?#? mark at the end of the marking. Rev. 1.401January 12, 2006 Features ?Ultra low quiescent current: 3.5?A (typ.) ?High input voltage (up to 12V) ?Output voltage: 1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 5.0V ?Output voltage accuracy: tolerance ?3% ?Maximum output current: 250mA ?Low dropout voltage ?Low temperature coefficient ?TO-92, SOT-89 package Applications ?Battery-powered equipment ?Voltage regulator for microprocessor ?Voltage regulator for LAN cards ?Wireless Communication equipment ?Audio/Video equipment General Description TheHT73XXseriesisasetofthree-terminal,lowpower, high voltage regulators implemented in CMOS technol- ogy. The series features extremely low quiescent cur- rent which is typically 3.5?A . They allow input voltages as high as 12V. The device provides large current with a significantly small dropout voltage. The HT73XX consists of a high-precision voltage refer- ence, an error correction circuit, and a current limited output driver. They are available with several fixed out- put voltages ranging from 1.8V to 5.0V. CMOS technol- ogy ensures low dropout voltage and low current consumption. Although designed primarily as fixed volt- age regulators, these devices can be used with external componentstogeneratevariablevoltagesandcurrents. Block Diagram Pin Assignment Absolute Maximum Ratings Supply Voltage .VSS?0.3V to VSS+14V Storage Temperature .?50?C to 125?C Power Consumption (*1) 500mW Operating Temperature ?40?C to 85?C Power Consumption (*2) .500mW Note: These are stress ratings only. Stresses exceeding the range specified under ?Absolute Maximum Ratings? may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil- ity. *1: applied to TO-92 *2: applied to SOT-89 HT73XX Rev. 1.402January 12, 2006 ? ? ? ? ? ? ? ?? ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ?? ? ? ? ? ? ? ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ? ? ? ? ? ?? ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ? ? ? ? ? ? ? ? Electrical Characteristics HT7318, +1.8V Output Type Ta=25?C SymbolParameter Test Conditions Min.Typ.Max.Unit VINConditions VOUTOutput Voltage2.8VIOUT=40mA1.7461.81.854V IOUT(MAX)Maximum Output Current2.8V VOUT?1.62V150??mA ?VOUT*Load Regulation2.8V1mA?IOUT?60mA?4590mV VDROP**Dropout Voltage ? IOUT=40mA ?170?mV ISSQuiescent Current2.8VNo load ?3.57?A Line Regulation? IOUT=40mA 2.8V?VIN?12V ?0.20.3%/V VINInput Voltage ????12V Temperature Coefficient2.8V IOUT=40mA ?40?CTa85?C ??0.7?mV/?C HT7325, +2.5V Output Type Ta=25?C SymbolParameter Test Conditions Min.Typ.Max.Unit VINConditions VOUTOutput Voltage3.5VIOUT=40mA2.4252.52.575V IOUT(MAX)Maximum Output Current3.5V VOUT?2.25V180??mA ?VOUT*Load Regulation3.5V1mA?IOUT?60mA?4590mV VDROP**Dropout Voltage ? IOUT=40mA ?110?mV ISSQuiescent Current3.5VNo load ?3.57?A Line Regulation? IOUT=40mA 3.5V?VIN?12V ?0.20.3%/V VINInput Voltage ????12V Temperature Coefficient3.5V IOUT=40mA ?40?CTa85?C ??0.7?mV/?C HT7327, +2.7V Output Type Ta=25?C SymbolParameter Test Conditions Min.Typ.Max.Unit VINConditions VOUTOutput Voltage3.7VIOUT=40mA2.6192.72.781V IOUT(MAX)Maximum Output Current3.7V VOUT?2.43V200??mA ?VOUT*Load Regulation3.7V1mA?IOUT?80mA?4590mV VDROP**Dropout Voltage ? IOUT=40mA ?100?mV ISSQuiescent Current3.7VNo load ?3.57?A Line Regulation? IOUT=40mA 3.7V?VIN?12V ?0.20.3%/V VINInput Voltage ????12V Temperature Coefficient3.7V IOUT=40mA ?40?CTa85?C ??0.7?mV/?C HT73XX Rev. 1.403January 12, 2006 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? HT7330, +3.0V Output Type Ta=25?C SymbolParameter Test Conditions Min.Typ.Max.Unit VINConditions VOUTOutput Voltage4VIOUT=40mA2.9133.09V IOUT(MAX)Maximum Output Current4V VOUT?2.7V250??mA ?VOUT*Load Regulation4V1mA?IOUT?80mA?4590mV VDROP**Dropout Voltage ? IOUT=40mA ?95?mV ISSQuiescent Current4VNo load ?3.57?A Line Regulation? IOUT=40mA 4V?VIN?12V ?0.20.3%/V VINInput Voltage ????12V Temperature Coefficient4V IOUT=40mA ?40?CTa85?C ??0.7?mV/?C HT7333, +3.3V Output Type Ta=25?C SymbolParameter Test Conditions Min.Typ.Max.Unit VINConditions VOUTOutput Voltage4.3VIOUT=40mA3.2013.33.399V IOUT(MAX)Maximum Output Current4.3V VOUT?2.97V250??mA ?VOUT*Load Regulation4.3V1mA?IOUT?80mA?4590mV VDROP**Dropout Voltage ? IOUT=40mA ?90?mV ISSQuiescent Current4.3VNo load ?3.57?A Line Regulation? IOUT=40mA 4.3V?VIN?12V ?0.20.3%/V VINInput Voltage ????12V Temperature Coefficient4.3V IOUT=40mA ?40?CTa85?C ??0.7?mV/?C HT7335, +3.5V Output Type Ta=25?C S。