MAX667ESA+T Maxim Integrated Products, MAX667ESA+T Datasheet

IC REG LDO 5V/ADJ 8-SOIC

MAX667ESA+T

Manufacturer Part Number
MAX667ESA+T
Description
IC REG LDO 5V/ADJ 8-SOIC
Manufacturer
Maxim Integrated Products
Type
Linearr
Datasheet

Specifications of MAX667ESA+T

Regulator Topology
Positive Fixed or Adjustable
Voltage - Output
5V, 1.3 ~ 16 V
Voltage - Input
3.5 ~ 16.5 V
Voltage - Dropout (typical)
0.15V @ 250mA
Number Of Regulators
1
Current - Output
250mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Package
8SOIC N
Function
LDO
Number Of Outputs
1
Input Voltage Range
16.5 to 3.5 V
Output Voltage
1.3 to 16|5 V
Maximum Output Current
0.25(Min) A
Output Type
Adjustable|Fixed
Typical Dropout Voltage @ Current
0.005@100uA|0.15@200mA V
Polarity
Positive
Reference Voltage
1.225(Typ) V
Input Voltage Max
16.5 V
Dropout Voltage (max)
0.06 V at 100 uA
Output Current
250 mA
Line Regulation
10 mV
Load Regulation
100 mV
Maximum Power Dissipation
0.471 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX667 low-dropout, positive, linear voltage regu-
lator supplies up to 250mA of output current. With no
load, it has a typical quiescent current of 20µA. At
200mA of output current, the input/output voltage differ-
ential is typically 150mV. Other features include a low-
voltage detector to indicate power failure, as well as
early-warning and low-dropout detectors to indicate an
imminent loss of output voltage regulation. A shutdown
control disables the output and puts the circuit into a
low quiescent-current mode.
The MAX667 employs Dual Mode™ operation. One
mode uses internally trimmed feedback resistors to pro-
duce +5V. In the other mode, the output may be varied
from +1.3V to +16V by connecting two external resistors.
The MAX667 is a pin-compatible upgrade to the
MAX666 in most applications where the input voltages
are above +3.5V. Choose the MAX667 when high out-
put currents and/or low dropout voltages are desired,
as well as for improved performance at higher
temperatures.
________________________Applications
19-3894; Rev 4; 9/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
TM
__________Typical Operating Circuit
_______________General Description
Dual Mode is a trademark of Maxim Integrated Products.
BATTERY
+6.3V
Battery-Powered Devices
Pagers and Radio Control Receivers
Portable Instruments
Solar-Powered Instruments
IN
________________________________________________________________ Maxim Integrated Products
SET
MAX667
GND
SHDN
OUT
+5V/Programmable Low-Dropout
10μF
C1
+5V OUT
♦ 350mV Max Dropout at 200mA
♦ 250mA Output Current
♦ Normal Mode: 20µA Typ Quiescent Current
♦ Low-Battery Detector
♦ Fixed +5V (Min Component Count) or
♦ +3.5V to +16.5V Input
♦ Dropout Detector Output
♦ 10µF Output Capacitor
*Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883.
†Contact factory for availability.
____________________________Features
__________________Pin Configuration
MAX667CPA
MAX667CSA
MAX667C/D
MAX667EPA
MAX667ESA
MAX667MJA
MAX667MSA/PR
MAX667MSA/PR-T
Shutdown Mode: 0.2µA Typ Quiescent Current
Adjustable Output
TOP VIEW
PART
Voltage Regulator
GND
OUT
LBI
DD
1
2
3
4
Ordering Information
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
DIP/SO
MAX667
8
7
6
5
IN
LBO
SET
SHDN
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
8 SO†
8 SO†
1

Related parts for MAX667ESA+T

MAX667ESA+T Summary of contents

Page 1

... BATTERY MAX667 SET GND SHDN TM Dual Mode is a trademark of Maxim Integrated Products. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. +5V/Programmable Low-Dropout ____________________________Features ♦ 350mV Max Dropout at 200mA ♦ ...

Page 2

Low-Dropout Voltage Regulator ABSOLUTE MAXIMUM RATINGS Input Supply Voltage ...........................................................+18V Output Short Circuited to Ground.........................................1sec LBO Output Sink Current ....................................................50mA LBO Output Voltage ...............................................GND to V SHDN Input Voltage ....................................-0. Input Voltages LBI, SET................................-0. Continuous ...

Page 3

Operating Characteristics (T = +25°C, unless otherwise noted.) A DROPOUT VOLTAGE vs. LOAD CURRENT 1000 100 100 LOAD CURRENT (mA) _____________________Pin Description PIN NAME FUNCTION Dropout Detector Output—the collec- tor of a PNP pass transistor. ...

Page 4

Low-Dropout Voltage Regulator IN SHDN LBO LBI GND Figure 1. MAX667 Block Diagram 8 IN OUT MAX667 SET GND SHDN Figure 2. Fixed +5V Regulator 4 _______________________________________________________________________________________ A1 C2 1.255V REF 2 +5V OUT 250mA C1 ...

Page 5

Output-Voltage Selection If SET is connected to a resistive voltage divider (Figure 3), the output voltage is set by the equation (R1 + R2) / R1, OUT SET where V = 1.22V SET To simplify resistor ...

Page 6

Low-Dropout Voltage Regulator OUT MAX667 SET GND SHDN Figure 5. Alternative Stability Scheme Using Resistor OUT MAX667 1 DD SET GND SHDN 47k Figure 6. ...

Page 7

CIRCUIT OF 600 FIGURE 7 400 CIRCUIT OF 200 (V) Figure 9. Quiescent Current Below Dropout with Connections of Figures 6 and 7 PNP transistor is turned on fully as regulation is ...

Page 8

Low-Dropout Voltage Regulator +5V OUTPUT 0.1V/div 100mA OUTPUT CURRENT 10mA 200μs/div Figure 12. Output Response to 10mA/100mA Load Step with 10 μ F Output Capacitor (1.5 Ω ESR) (PSRR) is therefore not specified. Since the output must be connected ...

Page 9

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © 2008 Maxim Integrated Products ...

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