35V/2.6μA/200mA，Ultra-Low-Iq, Low Dropout LDO
Converter
EC85XX
Descriptions
EC85XX series is designed for power-sensitive applications. It includes a precision and high voltage input stage, an ultra-low-power bias current branch, and results in a ultra-low-power and low-dropout linear regulator.
The EC85XX operates from an input voltage of VOUT+1V to 35V, consumes only 2.6μA of quiescent current, and offers 2% initial accuracy and low dropout voltage, 300mV typical at 100mA.
EC85XX has 1.8V，2.5V，3.0V，3.3V，3.6V，4.0V，4.2V，5.0V fixed voltage versions. Other features include short-circuit protection and thermal shutdown.
Feature
■ Ultra Low Quiescent Current: 2.6μA(Typ.)
■ Wide Operating Voltage: VOUT+1V to 35V
■ High output current: ≥200mA
■ System startup with no overshoot
■ Short circuit protection is designed with no
overshoot
■ Low Dropout Voltage
■ High Accuracy Output Voltage: ±2%
■ Excellent power / load transient response
■ Low temperature coefficient: ±100ppm/℃
■ Thermal and Short-Circuit Protection
■ SOT-89、 SOT23-3 and SOT23-5 package
■ Customer Pin Assignments are available
Application
■ Battery-powered Smoke sensor
■ Smoke sensor
■ Microcontrollers
■ Household appliances and instruments
Ordering Information
EC85XX NN XX X
18=1.8V
25=2.5V
30=3.0V
33=3.3V
36=3.6V
40=4.0V
42=4.2V
50=5.0V
R：Tape & Reel
B1：SOT23-3L
B2：SOT23-5L
B6：SOT89-3L
Part Number | Package | Marking | Marking Information |
EC85xxNNB1R | SOT23-3 | 53XXV | 53: Series code XX: Voltage B: Voltage accuracy 2% |
EC85xxNNB2R | SOT23-5 | 533W | 533：Series code W：Week code There is an top-line on 1st digit for 2017； There is an under-line on 1st digit for 2018； There is an top-line on 2st digit for 2019… |
EC85xxNNB6R | SOT89 | EC85XX YWLLLL | XX :Voltage Y : Year code W：Week code LLLL： Lot numbers |
Pin Configuration
SOT23-5
Application Diagram
EC85XX
Absolute Maximum Ratings
Symbol | Parameter | Value | Units |
VIN | Input Supply Voltage | 38 | V |
VOUT | Output Voltage | 6 | V |
TA | Operating Temperature | -40 ~ 85 | ℃ |
TSTG | Storage Temperature | -40 ~ 150 | |
TJ | Maximum Junction Temperature | 150 | |
TLEAD | Lead Temperature (Soldering) 10 seconds | 260 | |
JA | Thermal Resistance, Junction-to-Ambient | 165(SOT89) | ℃/W |
230(SOT23) | |||
PD | Power Consumption | 750 (SOT89) | mW |
250 (SOT23) |
Operating Rating
Parameter | Value | Symbol | Units |
Operating Temperature | -20℃～85 | VIN | ℃ |
Storage Temperature | -40℃～125 | VOUT | ℃ |
Lead Temperature (Soldering) 10 seconds | 260±5 | TA | ℃ |
Block Diagram
Electrical Characteristics
（VIN=VOUT+ 1V ； Tj=25℃ unless otherwise noted.）
Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
VIN | Input Supply Voltage |
| 3 |
| 36 | V |
VOUT | Output Voltage Accuracy | IOUT=10mA | -2% |
| 2% | V |
IQ | Quiescent Current |
|
| 2.6 | 6.0 | μA |
IOUT | Output Current |
| 200 | 250 |
| mA |
VDROP | Dropout Voltage | IOUT=10mA ΔVOUT= - VOUT *2% |
| 30 |
| mV |
IOUT=100mA ΔVOUT= - VOUT *2% |
| 300 |
| mV | ||
IOUT=200mA ΔVOUT= - VOUT *2% |
| 600 |
| mV | ||
VLR | Load Regulation | 1mA ≤ IOUT≤ 100mA |
| 40 |
| mV |
VSR | Line Regulation | IOUT=1mA, VIN=(VOUT +1V) to 30V |
| 0.2 |
| %/V |
ILIMIT | Current Limit | VIN=(VOUT +1V) to 30V RLOAD=VOUT /1A |
| 450 |
| mA |
TSHDN | Thermal Protection |
|
| 125 |
| ℃ |
TCVOUT | Output Voltage Temperature Coefficient | IOUT=10mA -40℃≤TAMB≤100℃ |
| ±100 |
| ppm/℃ |
Typical Performance Characteristics
Outline Drawing
