High Speed Low Noise LDO
Ver10 1 Jul 262013
Features
Low power consumption25uA (Typ)
Low voltage drop02V@100mA(Typ)
Low output noise(27uVRMS)
Standby Mode 01uA
Low temperature coefficient
Output Voltage Range 09V~5V
Good line Regulation005V
High Ripple Rejection 70dB@1kHz(Typ)
High input voltage (up to 7V)
Output voltage accuracy tolerance ±2
Buildin EnableOutput Current Limit circuit
SOT23 SOT235 and SOT89 package
Applications
Batterypowered equipment
Communication equipment
Mobile phones
Portable games
Cameras Video cameras
Reference voltage sources
General Description
The HE6211 series are highly accurate low noise
CMOS LDO Voltage Regulators Offering low
output noise high ripple rejection ratio low
dropout and very fast turnon times the HE6211
series is ideal for today’s cutting edge mobile
phone Internally the HE6211 includes a reference
voltage source error amplifiers driver transistors
current limiters and phase compensators The
HE6219’s current limiters' feedback circuit also
operates as a short protect for the output current
limiter and the output pin The output voltage is
set by current trimming Voltages are selectable in
100mV steps within a range of 09V to 50V The
HE6211 series is also fully compatible with low
ESR ceramic capacitors reducing cost and
improving output stability This high level of output
stability is maintained even during frequent load
fluctuations due to the excellent transient
response performance and high PSRR achieved
across a broad range of frequencies The CE
function allows the output of regulator to be turned
off resulting in greatly reduced power
consumption
Order Information
HE6211 Series
High Speed Low Noise LDO
Ver10 2 Jul 262013
Package and Pin assignment
Block Diagram
HE6211 Series
High Speed Low Noise LDO
Ver10 3 Jul 262013
Marking Rule
① Represents product series
Mark Product Series
L HE6211xxxxxx
② Represents type of regulator
Mark
Product series Vout 100mV Increments Vout 50mV Increments
Vout01~30V Vout31~60V Vout015~305V Vout315~605
V A E L HE6211Axxxxx
③ Represents output Voltage
Mark Output Voltage(V) Mark Output Voltage(V)
0 31 315 F 16 46 165 465
1 32 325 H 17 47 175 475
2 33 335 K 18 48 185 485
3 34 345 L 19 49 195 495
4 35 355 M 20 50 205
5 36 365 N 21 215
6 37 375 P 22 225
7 38 385 R 23 235
8 09 39 095 395 S 24 245
9 10 40 105 405 T 25 255
A 11 41 115 415 U 26 265
B 12 42 125 425 V 27 275
C 13 43 135 435 X 28 285
D 14 44 145 445 Y 29 295
E 15 45 155 455 Z 30 305
④ Respresents production lot number
0 to 9 A to Z reverse character of 0 to 9 A to Z repeated ( G I O Q W excepted)
HE6211 Series
High Speed Low Noise LDO
Ver10 4 Jul 262013
Absolute Maximum Ratings
Supply Voltage 03V to 8V
Operating Temperature 40℃ to 85℃
Storage Temperature 50℃ to 125℃
Note These are stress ratings only Stresses exceeding the range specified under Absolute Maximum Ratings
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 reliability
Thermal Information
Symbol Parameter Package Max Unit
θ JA
Thermal Resistance (Junction to
Ambient) (Assume no ambient
airflow no heat sink)
SOT233 500 ℃W
SOT235 500 ℃W
SOT895 200 ℃W
PD Power Dissipation
SOT233 020 W
SOT235 020 W
SOT895 050 W
Note PD is measured at Ta 25℃
Electrical Characteristics
HE6211 for any output voltage (Ta25℃)
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage Vout
VinVout+1V
10mA≤Iout≤30mA
Vout×098 Vout×102 V
Output Current*1 Iout VinVout1V 250 mA
Low dropout*2 Vdrop Refer to the next table
Line Regulation △Vout1(Vin·Vout)
16V≤Vin≤8V
Iout40mA
005 02 V
Load Regulation △Vout ΔIout
Vin Vout+1V
10mA≤Iout≤80mA
12 30 mV
Output voltage
Temperature
Coefficiency
△Vout(Ta·Vout)
Iout30mA
0℃≤Ta≤70℃
±100 Ppm℃
Supply Current Iss1 25 40 uA
Input Voltage Vin 7 V
PSRR PSRR
F1KHz
VinVout+1V
70 dB
Output Noise EN BW10Hz~100KHz 27 uVrms
HE6211 Series
High Speed Low Noise LDO
Ver10 5 Jul 262013
Electrical Characteristics by Output Voltage:
Output Voltage Vout(V)
Dropout Voltage Vdif(V)
Conditions Typ Max
Vout≤15V
Iout100 mA
040 075
Vout16V 038 068
Vout17V 036 063
18 ≤ Vout ≤ 2 035 060
21 ≤ Vout ≤ 27 030 052
28 ≤ Vout ≤ 50 020 030
Operational Explanation