Datasheet HT73xx (Holtek)

HT73xx Series Low Power Consumption LDO Features General Description
• Ultra low quiescent current: 3.5µA (typ.) The HT73xx series is a set of three-terminal, low • High input voltage (up to 12V) power, high voltage regulators implemented in • Output voltage: 1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, CMOS technology. The series features extremely 4.15V, 5.0V low quiescent current which is typically 3.5µA . They allow input voltages as high as 12V. The device • Output voltage accuracy: tolerance ±3% provides large current with a significantly small • Maximum output current: 250mA dropout voltage. • Low dropout voltage The HT73xx consists of a high-precision voltage • Low temperature coefficient reference, an error correction circuit, and a current • 3-pin SOT89 package limited output driver. They are available with several fixed output voltages ranging from 1.8V to 5.0V. CMOS technology ensures low dropout voltage
Applications
and low current consumption. Although designed • Battery-powered equipment primarily as fixed voltage regulators, these devices can be used with external components to generate • Voltage regulator for microprocessor variable voltages and currents. • Voltage regulator for LAN cards • Wireless Communication equipment • Audio/Video equipment
Selection Table Part No. Output Voltage Package Marking
HT7318 1.8V HT7325 2.5V HT7327 2.7V HT7330 3.0V SOT89 73xx-A (for SOT89) HT7333 3.3V HT7335 3.5V HT7341 4.15V HT7350 5.0V Note: ″xx″ stands for output voltages. Rev. 1.80 1 March 19, 2019 Rev. 1.00 PB March 19, 2019 Document Outline Features Applications General Description Selection Table Block Diagram Pin Assignment Pin Description Absolute Maximum Ratings* Electrical Characteristics HT7318, +1.8V Output Type HT7325, +2.5V Output Type HT7327, +2.7V Output Type HT7330, +3.0V Output Type HT7333, +3.3V Output Type HT7335, +3.5V Output Type HT7341, +4.15V Output Type HT7350, +5.0V Output Type Application Circuits Package Information 3-pin SOT89 Outline Dimensions