HT7350 반도체 회로 부품 판매점
Low Power Consumption LDO
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 Holtek Semiconductor |
www.DataSheet4U.com
HT73XX
Low Power Consumption LDO
Features
· Ultra low quiescent current: 3.5mA (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
The HT73XX series is a set of three-terminal, low power,
high voltage regulators implemented in CMOS technol-
ogy. The series features extremely low quiescent cur-
rent which is typically 3.5mA . 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
components to generate variable voltages and currents.
Selection Table
Part No.
HT7318
HT7325
HT7327
HT7330
HT7333
HT7335
HT7350
Output Voltage
1.8V
2.5V
2.7V
3.0V
3.3V
3.5V
5.0V
Package
TO-92
SOT-89
Marking
73XX-A (for TO-92)
73XX-A (for SOT-89)
Note:
²XX² stands for output voltages.
For lead free devices, TO-92 package will add a ²#² mark at the end of the date code, whereas SOT-89
package will add a ²#² mark at the end of the marking.
Rev. 1.40
1 January 12, 2006
www.DataSheet4U.com
Block Diagram
V IN
HT73XX
VO UT
V re f
GND
Pin Assignment
T O -9 2
7 3 X X -A
F r o n t V ie w
S O T -8 9
7 3 X X -A
G N D V IN V O U T
G N D V IN V O U T
B o tto m V ie w
G N D V IN V O U T
Absolute Maximum Ratings
Supply Voltage ...........................VSS-0.3V to VSS+14V
Power Consumption (*1) .................................. 500mW
Power Consumption (*2) ...................................500mW
Storage Temperature ...........................-50°C to 125°C
Operating Temperature ..........................-40°C to 85°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² 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
Rev. 1.40
2 January 12, 2006
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