HT72XX
General Purpose Regulator
Block Diagram Pin Assignment
Features
•High input voltage (up to 24V)
•Low power consumption
•High output current : 100mA (Pd ≤ 250mW)
•Low voltage dropout
•Low temperature coefficient
•TO-92 package
Applications
•Battery-Powered equipment
•Communication equipment •Audi o/Vi d e o equipme nt
General Description
The HT72XX series is a set of three-terminal
high current high voltage regulator imple-
mented in CMOS technology. They can d eliver
100mA output curre nt and a llow an inpu t volt-
age as high as 24V. They are available with
several fixed output voltages ranging from 2.4V
to 15V. The advantages of CMOS technology
give low voltage dropout and low quiescent cur-
rent.
Although designed primarily as fixed voltage
regulator, these devices can be used with exter-
nal components to obtain variable voltages and
currents.
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Selection Guide
Item Pin A ssignment Output Voltage Tolerance
HT7230
HT7231 B
A3.0V ±2.4%, ±5%
HT7233
HT7234 B
A3.3V ±2.4%, ±5%
HT7245
HT7246 B
A4.5V ±2.4%, ±5%
HT7250
HT7251 B
A5.0V ±2.4%, ±5%
HT7260
HT7261 B
A6.0V ±2.4%, ±5%
HT7270
HT7271 B
A7.0V ±2.4%, ±5%
HT7280
HT7281 B
A8.0V ±2.4%, ±5%
HT7290
HT7291 B
A9.0V ±2.4%, ±5%
HT72C0
HT72C1 B
A12V ±2.4%, ±5%
Note: Selectable regulation voltage range from 2.4V to 9V in 0.1V increments. If custom first order
100K piece. (semi-custom parts)
Absolute Maximum Ratings*
Supply Voltage ...............................–0.3V to 26V Storage Temperature........... .... ..–50°C to 125°C
Power Dissipation.................................. 250mW Operating Temperature...................0°C to 70°C
*Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent
damageto the device. These are stress ratings only. Functional operation of this device at
these or any other conditions above those indicated in the operational sections of this
specification is not implied and exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
HT72XX
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Electrical Characteristics
HT72XX series (HT7230, HT7231, +3.0V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage Tolerance 5V IOUT=10mA 2.85 3.0 3.15 V
IOUT Output Current 5V — 60 100 — mA
∆VOUT Load Regulation 5V 1mA≤IOUT≤50mA —60120mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 5V No load — 200 350 µA
∆VOUT
∆VIN • VOUT Line Regulation — 4V≤VIN≤12V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 5V IOUT=10mA
0°C<Ta<70°C —±0.45 —mV/°C
HT72XX series (HT7233, HT7234, +3.3V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage Tolerance 5.5V IOUT=10mA 3.14 3.3 3.47 V
IOUT Output Current 5.5V — 60 100 — mA
∆VOUT Load Regulation 5.5V 1mA≤IOUT≤50mA —60100mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 5.5V No load — 220 400 µA
∆VOUT
∆VIN • VOUT Line Regulation — 4.5V≤VIN≤12V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 5.5V IOUT=10mA
0°C<Ta<70°C —±0.5 —mV/°C
HT72XX
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HT72XX series (HT7245, HT7246, +4.5V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage 6.4V IOUT=10mA 4.27 4.5 4.72 V
IOUT Output Current 6.4V — 100 150 — mA
∆VOUT Load Regulation 6.4V 1mA≤IOUT≤70mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 6.4V No load — 300 450 µA
∆VOUT
∆VIN • VOUT Line Regulation — 5.4V≤VIN≤12V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 6.4V IOUT=10mA
0°C<Ta<70°C —±0.7 —mV/°C
HT72XX series (HT7250, HT7251, +5.0V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage 7V IOUT=10mA 4.75 5.0 5.25 V
IOUT Output Current 7V — 100 150 — mA
∆VOUT Load Regulation 7V 1mA≤IOUT≤30mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 7V No load — 330 500 µA
∆VOUT
∆VIN • VOUT Line Regulation — 6V≤VIN≤15V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 7V IOUT=10mA
0°C<Ta<70°C —±0.75 —mV/°C
HT72XX
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HT72XX series (HT7260, HT7261, +6.0V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage 8V IOUT=10mA 7.6 8.0 8.4 V
IOUT Output Current 8V — 100 150 — mA
∆VOUT Load Regulation 8V 1mA≤IOUT≤30mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 8V No load — 390 600 µA
∆VOUT
∆VIN • VOUT Line Regulation — 6V≤VIN≤15V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 8V IOUT=10mA
0°C<Ta<70°C —±0.9 —mV/°C
HT72XX series (HT7270, HT7271, +7.0V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage 9V IOUT=10mA 6.65 7.0 7.35 V
IOUT Output Current 9V — 100 150 — mA
∆VOUT Load Regulation 9V 1mA≤IOUT≤70mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 9V No load — 450 700 µA
∆VOUT
∆VIN • VOUT Line Regulation — 8V≤VIN≤20V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 9V IOUT=10mA
0°C<Ta<70°C —±1.05 —mV/°C
HT72XX
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HT72XX series (HT7280, HT7281, +8.0V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage Tolerance 10V IOUT=10mA 7.61 8 8.4 V
IOUT Output Current 10V — 100 150 — mA
∆VOUT Load Regulation 10V 1mA≤IOUT≤70mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 10V No load — 500 800 µA
∆VOUT
∆VIN • VOUT Line Regulation — 9V≤VIN≤20V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 10V IOUT=10mA
0°C<Ta<70°C —±1.2 —mV/°C
HT72XX series (HT7290, HT7291, +9.0V output type) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage Tolerance 12V IOUT=10mA 8.55 9 9.45 V
IOUT Output Current 12V — 100 150 — mA
∆VOUT Load Regulation 12V 1mA≤IOUT≤70mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 12V No load — 600 900 µA
∆VOUT
∆VIN • VOUT Line Regulation — 10V≤VIN≤20V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 12V IOUT=10mA
0°C<Ta<70°C —±1.35 —mV/°C
HT72XX
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HT72 X X series (HT 72 C 0, HT 72 C 1, +12V outp ut typ e) (Ta=25°C)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Conditions
VOUT Output Voltage Tolerance 15V IOUT=10mA 11.4 12 12.6 V
IOUT Output Current 15V — 100 150 — mA
∆VOUT Load Regulation 15V 1mA≤IOUT≤70mA —60150mV
V
DIF Voltage Dropout — IOUT=1mA — 100 — mV
ISS Current Consumption 15V No load — 800 1200 µA
∆VOUT
∆VIN • VOUT Line Regulation — 14V≤VIN≤24V
IOUT=1mA — 0.2 — %/V
VIN Input Voltage — — — — 24 V
∆VOUT
∆TaTemperature Coefficient 15V IOUT=10mA
0°C<Ta<70°C —±1.8 —mV/°C
Application Circuit
Basic circu it
HT72XX
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High outp ut cu rren t positive voltag e reg ulato r
Short-C ircu it protec tion for Tr1
Circuit for increasing output voltage
VOUT = VXX ( 1 + R2
R1 ) + ISS R2
HT72XX
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Circuit for increasing output voltage
VOUT = VXX + VDI
Cons tan t curre nt reg ulator
IOUT = VXX
RA + ISS
Dual supply
HT72XX
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Package Outlines
Dimension
All linear dimens ions are in inche s an d pa ren the tically in millimete rs ( Min.
Max. )
3-pin TO-92 pack ag e
HT72XX
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