30V 250mA TinyPower LDO
Description
HT73xx-7 30V, 250mA TinyPowerTM LDO with Protections
Features
• Low power consumption • Low voltage drop • Low temperature coefficient • High input voltage – up to 30V • Output voltage accuracy: tolerance ±2% • Over current protection • Over temperature protection • Chip enable/disable function • Package types: 8-pin SOP-EP, SOT89-3 and
TO92-3
Applications
• Battery-powered equipment • Communication equipment • Audio/Video equipment
General Description
The HT73xx-7 is a low power high voltage series of regulators implemented in CMOS technology which has the advantages of low voltage drop and low quiescent current.
They allow input voltages as high as 30V and are available with several fixed output voltages ranging from 2.
1V to 5.
0V.
When the CE input is low, a fast discharge path pulls the output voltage low via an internal pull-down resistor.
An internal over-current protection circuit prevents the device from damage even if the output is shorted to ground.
An over-temperature protection circuit ensures the device junction temperature will not exceed a temperature of 150°C.
Selection Table
Part No.
HT7321-7 HT7323-7 HT7325-7 HT7327-7 HT7330-7 HT7333-7 HT7336-7 HT7340-7 HT7344-7 HT7350-7
Output Voltage 2.
1V 2.
3V 2.
5V 2.
7V 3.
0V 3.
3V 3.
6V 4.
0V 4.
4V 5.
0V
Note: "xx" stands for output voltages.
Packages
Markings
8SOP-EP
HT73xx-7 for the 8SOP-EP type.
TO92-3, SOT89-3 73xx-7 marking for the TO92-3, SOT89-3 types.
Rev.
1.
00
1 April 15, 2016
Block Diagram
VIN
CE GND
Vref En Soft Start
HT73xx-7
OCP
OTP 300Ω
En
OUT
Pin Assignment
OUT 1
8 VIN
NC 2 9 7 CE NC 3 VIN 6 NC
NC 4
5 GND
HT73xx-7 8 SOP-A (Exposed Pad)
SOT89-3
73xx-7 1 23 GND VIN OUT
TO92-3 73xx-7
1 23 GND VIN OUT
Pin Descriptions
8SOP-EP 5
8, 9 1 7
2, 3, 4, 6
Pin No.
SOT89-3 1 2 3 — —
TO92-3 1 2 3 — —
Pin Name
GND VIN OUT CE NC
Pin Description
Ground pin Input pin Output pin Chip enable pin, high enable No connection
Rev.
1.
30
2 April 15, 2016
Absolute Maximum Ratings
P...
Similar Datasheet
