Document
HT73xx-2 30V, 250mA TinyPowerTM LDO
Features
• Low power consumption • Low voltage drop • Low temperature coefficient • High input voltage - up to 30V • Output voltage accuracy: tolerance ±1% • Over current protection • TO-92, SOT89-3, and 8-pin SOP-EP packages
Applications
• Battery-powered equipment • Communication equipment • Audio/Video equipment
General Description
The HT73xx-2 device series are low power high voltage regulators implemented in CMOS technology which have the advantages of low voltage drop and low quiescent current. They allow input voltages as high as 30V. They are available with several fixed output voltages ranging from 2.1V to 5.0V. The softstart function inhibits the problem of output overshoot during power on.
Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents.
Selection Table
Part No. HT7321-2 HT7323-2 HT7325-2 HT7327-2 HT7330-2 HT7333-2 HT7336-2 HT7340-2 HT7344-2 HT7350-2
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
Package
TO-92 SOT89-3 8SOP-EP
Marking
73xx-2 (for TO-92, SOT89-3) HT73xx-2 (for 8SOP-EP)
Rev. 1.00
1 August 26, 2015
Block Diagram
VIN
HT73xx-2
OUT
Vref
GND
Soft Start
Pin Assignment
TO-92
SOT89-3
73xx-2
1 23 GND VIN VOUT
73xx-2
1 23 GND VIN OUT
OUT 1
8 VIN
NC 2 9 7 NC NC 3 VIN 6 NC
NC 4
5 GND
HT73xx-2 8 SOP-A (Exposed Pad)
Pin Descriptions
TO-92 1 2 3 —
Pin No.
SOT89-3 1 2 3 —
8SOP-EP 5
8, 9 1
2, 3, 4, 6, 7
Pin Name
GND VIN OUT NC
Pin Description
Ground pin Input pin Output pin
No connection
Rev. 1.00
2 August 26, 2015
Absolute Maximum Ratings
Parameter VIN Operating Temperature Range, Ta Maximum Junction Temperature, TJ(MAX) Storage Temperature Range
Junction-to-Ambient Thermal Resistance, θJA
Power Dissipation, PD(MAX)
Note: PD(MAX) is measured at Ta = 25°C
Recommended Operating Range
Parameter VIN
TO-92 SOT89-3 8SOP-EP
TO-92 SOT89-3 8SOP-EP
HT73xx-2
Value -0.3 to +33 -40 to +85
+150 -65 to +165
200 200 125 0.50 0.50 0.80
Unit V oC oC oC
°C/W °C/W °C/W
W W W
Value VOUT+2 to 30
Unit V
Electrical Characteristics
VIN=(VOUT+2V), Ta=+25oC and CIN=COUT=10uF, unless otherwise specified
Symbol
Parameter
Test Conditions
VIN Input Voltage
—
VOUT
Output Voltage Range
—
VO Output Voltage Accuracy IOUT=10mA
IOUT Output Current
—
∆VOUT VDIF
Load Regulation Dropout Voltage
1mA ≤ IOUT ≤ 100mA IOUT=1mA, VOUT Change=2% (Note) IOUT=30mA, VOUT Change=2% (Note)
ISS
Quiescent Current
IOUT=0mA
∆VOUT ∆VIN × VOUT
Line Regulation
(VOUT+2V) ≤ VIN ≤ 30V, IOUT=40mA
∆VOUT ∆Ta × VOUT
Temperature Coefficient
IOUT=40mA, -40°C < Ta < 85°C
IOCP Over Current Protection VIN=12V
Min. — 2.1 –1 250 — — — —
—
—
—
Typ. — — — — 45 6 120 2.5
0.2
±100
350
Max. 30 5.0 1 — 90 15 300 4.0
0.4
Unit V V % mA mV
mV
uA
%/V
— ppm/°C 700 mA
Note: Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at VIN=VOUT+2V with a fixed load.
Rev. 1.00
3 August 26, 2015
HT73xx-2
Typical Performance Characteristic
Test Condition: VIN=VOUT+2V, IOUT=10mA, CIN=10μF, COUT=10μF and Ta=25ºC, unless otherwise noted
Line Regulation: HT7333-2 (IOUT=10mA)
Line Regulation: HT7350-2 (IOUT=10mA)
ISS vs VIN: HT7333-2 (IOUT=0mA)
ISS vs IOUT: HT7333-2 (VIN=5.3V)
1400 1200 1000
800 600 400 200
0 0
-40°C +25°C +85°C
50 100 150 200 IOUT (mA)
Dropout Voltage: HT7333-2
250
ISS (uA)
VDIF (mV)
200 160 120
80 40
0 0
ISS vs VIN: HT7350-2 (IOUT=0mA)
-40°C +25°C +85°C
50 100 150 200 IOUT (mA)
ISS vs IOUT: HT7350-2 (VIN=7.0V)
250
900 800 700 600 500 400 300 200 100
0
0
-40°C +25°C +85°C
50 100 150 200 IOUT (mA)
Dropout Voltage: HT7350-2
250
VDIF (mV)
Rev. 1.00
4 August 26, 2015
HT73xx-2
Test Condition: VIN=VOUT+2V, IOUT=10mA, CIN=10μF, COUT=10μF and Ta=25ºC, unless otherwise noted
Load Transient Response: HT7333-2 (VIN=5.3V, IOUT=0mA to 40mA)
Load Transient Response: HT7350-2 (VIN=7.0V, IOUT=0mA to 40mA)
Load Transient Response: HT7333-2 (VIN=5.3V, IOUT=40mA to 0mA)
Load Transient Response: HT7350-2 (VIN=7.0V, IOUT=40mA to 0mA)
Line Trasient Response: HT7333-2 (IOUT=10mA)
Line Trasient Response: HT7350-2 (IOUT=10mA)
Rev. 1.00
5 August 26, 2015
Preliminary
HT73xx-2
Test Condition: VIN=VOUT+2V, IOUT=10mA, CIN=10μF, COUT=10μF and Ta=25ºC, unless otherwise noted
Line Trasient Response: HT7333-2 (IOUT=10mA)
Line Trasient Response: HT7350-2 (IOUT=10mA)
Line Trasient Response: HT7333-2 (IOUT=10mA)
Line Trasient Response: HT7350-2 (IOUT=10mA)
Line Trasient Response: HT7333-2 (IOUT=10mA)
Line Trasient Response: HT7350-2 (IOUT=10mA)
Power On Response: HT7333-2 (IOUT=0mA, TRISE=0.1ms)
Power On Response: HT7350-2 (IOUT=0mA, TRISE=0.1ms)
Rev. 10.00
6 August 26, 2015
HT73xx-2
Test Condition: VIN=VOUT+2V, IOUT=10mA, CIN=10μF, COUT=10μF and Ta=25ºC, unless otherwise noted
Power On Response: HT7333-2 (IOUT=0mA, TRI.