HT7521-7 Datasheet, PDF (19/25 Pages) Holtek Semiconductor Inc – 30V, 100mA TinyPowerTM LDO with Protections

Circuit for Increasing Output Voltage
VIN
V_IN
C3
0.1μF
C1
10μF ^OFF
CE
ON
HT75xx-7
Series
GND
ISS
V_OUT
C2
10μF
C4
0.1μF
HT75xx-7
VOUT
R1
Common
VOUT = Vxx×(1+R2/R1) + ISS×R2
R2
Common
Circuit for Increasing Output Voltage
VIN
VIN
C3
C1
CE
ON
HT75xx-7
Series
OFF
0.1μF
10μF
GND
ISS
VOUT
C2
10μF
C4
0.1μF
VOUT
R1
Common
VOUT = Vxx + VD1
D1
Constant Current Regulator
VIN
VIN
C3
0.1μF
C1
10μF ^OFF
CE
ON
HT75xx-7
Series
GND
ISS
VOUT
C2
10μF
C4
0.1μF
Common
IOUT = Vxx / RA + ISS
Common
VOUT
RA
I_OUT
RL
Common
Rev. 1.10
19
February 18, 2016