300mA High-PSRR Low Dropout Voltage
Linear Regulators
EC3111
General Description
The EC3111 is a 300mA, low dropout and low
noise linear regulator with high ripple rejection
ratio and fast turn-on time. It has fixed output
voltage ranging from 1.1V to 4.8V.
The EC3111 includes a voltage reference unit,an
error amplifier, resistor net for voltage setting,a
current limit circuit and a chip enable circuit. These
ICs perform with low dropout voltage and a chip
enable function(SOT23-5L/TSOT23-3L/
TSOT23-5L/SC70-4L/SC70-5L/DFN-6L/UDFN-4L package only).
The EC3111 works well with low ESR ceramic
capacitors, suitable for portable RF and wireless
battery-powered applications with stringent space
requirements and demanding performance. It also
offers ultra low noise output and has low quiescent
current.
Function Block Diagram
Features
VIN Range: 2.0V to 6.0V
Low Dropout Voltage: 0.22V (Typ)
(VOUT= 3.3V, IOUT= 150mA)
High Ripple Rejection: 65dB (Typ)(f=10kHz)
Excellent Line Regulation: 0.01% / V(Typ)
Output Voltage Accuracy: ±2.0%
Low Supply Current: 25µA (Typ)
Standby Current: 0.01µA (Typ)
Over Current Protection
Fixed Output Voltage: 1.1V ~ 4.8V
Ultra Fast Transient Response
Applications
Portable Communication Equipment
Battery-Powered Equipment
Ordering Information
Blank:Normal
1:Pin Type 1(SOT23-5L)
2:Pin Type 2(SOT23-3L)
A:Pin Type A(SOT89 3L)
B:Pin Type B(SOT89 3L)
EC3111 XX XX X X
Output Voltage:
11=1.1 V
12=1.2 V
15=1.5 V
18=1.8 V
25=2.5 V
28=2.8V
30=3.0 V
33=3.3 V
R:Tape & Reel
Package Type:
B1:SOT23-3L
B2:SOT23-5L
T1:TSOT23-3L
T2:TSOT23-5L
B6:SOT89-3L
C4:SC70-4L
C5:SC70-5L
FN:DFN 3×3-6L
UF:UDFN1x1-4L
Marking Information
Device | Marking Information | Package Type | Remarks |
EC3111VVB1R | 3111 VVYW | SOT23-3L |
|
EC3111VVB1R2 | 3111 VVYW2 | SOT23-3L (Pin type 2) | |
EC3111VVB2R | 3111 VVYW | SOT23-5L | |
EC3111VVB2R1 | 3111 VVYW1 | SOT23-5L (Pin type 1) | |
EC3111VVT1R | 3111 VVYW | TSOT23-3L | |
EC3111VVT2R | 3111 VVYW | TSOT23-5L | |
EC3111VVFNR | 3111 VVYW | DFN3x3-6L | |
EC3111VVB6RA | 3111 VVYWA | SOT89-3L (Pin Type A) | |
EC3111VVB6RB | 3111 VVYWB | SOT89-3L (Pin Type B) | |
EC3111VVC4R | 1VVf | SC70-4L |
|
EC3111VVC5R | 8130 TTTTT | SC70-5L |
|
EC3111VVUFR | LV XX | UDFN1*1-4L |
G→1.2V;H→1.8V;O→2.8V
|
Pin Configurations
SOT23-3L/TSOT23-3L SOT23-5L/TSOT23-5L
SOT89-3L(Pin Type A) SOT89-3L(Pin Type B)
SC70-4L SC70-5L
DFN 3x3-6L SOT23-5L(Pin type 1)
SOT23-3L(Pin type 2) UDFN-4L
Typical Application Circuit
SOT23-3L/TSOT23-3L/SOT89-3L
Absolute Maximum Ratings (Note1)
Enable Voltage (VEN): 6.5V
Power Input Voltage (VIN): 6.5V
Maximum Junction Temperature(TJ): 125°C
Storage Temperature Range(TSTG): -65℃ to 150℃
ESD Susceptibility(Note 2):
HBM (Human Body Mode): 2KV
MM (Machine Mode): 200V
Thermal Information
Thermal Resistance(Note 3)
Junction to Ambient(θJA)
SOT23-3L/TSOT23-3L 357°C/W
SOT23-5L/TSOT23-5L 333°C/W
SOT89-3L 175℃/W
SC70-4L 500℃/W
SC70-5L 330℃/W
DFN3x3-6L 70℃/W
UDFN1x1-4L 250℃/W
Power Dissipation, PD @ TA=25°C (Note 4)
SOT23-3L/TSOT23-3L 280mW
SOT23-5L/TSOT23-5L 300mW
SOT89-3L 571mW
SC70-4L 200mW
SC70-5L 303mW
DFN3x3-6L 1429Mw
UDFN1x1-4L 400mW
Recommended Operating Conditions(Note 5)
Operating Junction Temperature Range(TJ): -40℃ to +125℃
Operating Ambient Temperature Range(TOPA): -40℃ to +85℃
Enable Voltage(VEN): -0.3V to VIN
Power Input Voltage(VIN): +6V
Note 1:Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device.
These are for stress ratings. Functional operation of the device at these or any other conditions beyond
those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may remain possibility to affect device reliability.
Note 2:Devices are ESD sensitive. Handling precaution recommended.
Note 3:Thermal Resistance is specified with approximately 1 square of 1 oz copper.
Note 4:Thermal Resistance is specified with the component mounted on a low effective thermal conductivity test
board in free air at TA=25°C.
Note 5:The device is not guaranteed to function outside its operating conditions.
Electrical Characteristics (Unless otherwise specified VIN=VOUT+1V, TA=25°C)
Symbol | Parameters | Condition | Min | Typ | Max | Units |
VOUT | Output Voltage | 1mA≦IOUT≦30mA | VOUTX0.98 |
| VOUTX1.020 | V |
Reg_load | Load Regulation | IOUT=1mA to 150mA |
| 0.005 | 0.015 | %/mA |
Reg_line | Line Regulation | VOUT>1.7V,VIN=(VOUT+0.5V) to 6V VOUT≦1.7V,VIN=2.2V to 6V IOUT=1mA |
| 0.01 | 0.2 | %/V |
VDROP | Dropout Voltage(Note 6) | VOUT<1.5V |
|
| 1.00 | V |
VOUT=1.5V |
| 0.48 | 0.70 | V | ||
VOUT=1.6V,IOUT=150mA |
| 0.46 | 0.65 | V | ||
VOUT=1.7V |
| 0.44 | 0.60 | V | ||
1.8V≦VOUT≦2.0V |
| 0.42 | 0.55 | V | ||
2.1V≦VOUT≦2.7V |
| 0.28 | 0.50 | V | ||
2.8V≦VOUT≦4.8V |
| 0.22 | 0.35 | V | ||
PSRR | Ripple Rejection | f=10kHz, Ripple 0.5VP-P, VOUT>1.7V,VIN-VOUT=1.0V VOUT≦1.7V,VIN-VOUT=1.2V IOUT=10mA |
| 65 |
| dB |
f=1kHz, Ripple 0.5VP-P, VOUT>1.7V,VIN-VOUT=1.0V VOUT≦1.7V,VIN-VOUT=1.2V IOUT=10mA |
| 70 |
| dB | ||
ISS | Supply Current | IOUT=0mA |
| 25 |
| uA |
IStandby | Supply Current (Standby) | VEN=GND |
| 0.01 | 0.1 | uA |
VIN | Input Voltage |
| 2.0 |
| 6.0 | V |
△VOUT/△T | Output Voltage Temperature Coefficient | IOUT=1mA,-40℃≦TJ≦85℃ |
| ±100 |
| ppm/℃ |
ILIM | Current Limit |
|
| 400 |
| mA |
RPD | EN Pull-Down Resistance |
| 0.7 | 2.0 | 8.0 | MΩ |
VENH | EN Input Voltage “H” |
| 1.2 |
| VIN | V |
VENL | EN Input Voltage “L” |
|
|
| 0.4 | V |
eN | Output Noise | BW=10Hz to 100kHz,Co=1uF |
| 100 |
| uVrms |
RLOW | On Resistance for Auto-Discharge | VEN=0V |
| 60 |
| Ω |
Note 6: Dropout voltage is tested by reducing input voltage until the output drops 2% below its nominal value.
Operating Characteristics
PSRR CURVE
Ripple Rejection vs Frequency
(VIN-VOUT)=1.0V
Frequency (Hz)
Package Dimension
OUTLINE DRAWING SOT23-3L