YB1231 – HV600mA

Low-Noise LDO Regulator

YB1231 MRev. 1.4

www.yobon.com.tw

3

Function Parameter

Conditions

Min

Typ

Max

Units

Input Voltage Range

3.5

6.0

V

Output Voltage

Predefined

3.2

4.5

V

Output Voltage Accuracy

-2.0

+2.0

%

Output Current Limit

Short-circuit output

420

mA

Vout = 4.5V, Iout = 600 mA

440

Vout = 4.0V, Iout = 600 mA

470

Vout = 3.6V, Iout = 600 mA

500

Vout = 3.3V, Iout = 600 mA

530

Vout = 3.2V, Iout = 600 mA

550

mV

Ground Current

Iground = Iin - Iout

100

160

μ

A

Line Regulation

Vin = (Vout + 1V) to 6V, Iout = 10 mA

0.4

%/V

Load Regulation

Iout = 1mA to 600 mA

1.7

%

Shutdown Supply Current

EN = 0.4V

0.01

μ

A

f = 100 Hz, Iout = 10 mA

51

f = 1KHz, Iout = 10 mA

51

Ripple Rejection (PSRR)

f = 10 KHz, Iout = 10 mA

45

dB

Vout = 3.3V, Rload = 11 ohm

36

100

μ

S

EN Logic Low Level

Vin = 2.0V to 6.0V

0.4

V

EN Logic High Level

Vin = 2.0V to 6.0 V

1.5

Vin

V

EN Input Bias Current

Vin = EN = Vout + 1V

0.01

μ

A

Thermal Shutdown

Shutdown Temperature

160

°

C

Thermal Shutdown Hysteresis

20

°

C

Absolute Maximum Ratings

Supply Voltage........................................ -0.3V to 7.0V

Output Short-Circuit Duration ........................... Infinite

Junction Temperature Range........................... +150℃

Storage Temperature Range ............. -65℃ to +150℃

Lead Temperature............................................ +250℃

Electrical Characteristics

Table 2

Recommended Operating Conditions

Input Supply Voltage................................ 2V to 6.0V

Operating Temperature..................... -40℃ to +85℃

Thermal Resistance (SOT-23/25,

Thermal Resistance (SOT-23/25,

Thermal Resistance (SOT-89,

Thermal Resistance (SOT-89,

Note1 : The drop out voltage varies depending on output voltage selection