MAX1806EUA15 Maxim Integrated Products, MAX1806EUA15 Datasheet

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MAX1806EUA15

Manufacturer Part Number
MAX1806EUA15
Description
Low Dropout (LDO) Regulators 500mA
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1806EUA15

Number Of Outputs
1
Polarity
Positive
Input Voltage Max
5.5 V
Output Voltage
1.5 V
Output Type
Fixed
Output Current
500 mA
Line Regulation
0.18 % / V
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
1.3 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
uMAX EP
Minimum Operating Temperature
- 40 C

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The MAX1806 low-dropout linear regulator operates
from a +2.25V to +5.5V supply and delivers a guaran-
teed 500mA load current with low 175mV dropout. The
high-accuracy (±1%) output voltage is preset at an
internally trimmed voltage (see Selector Guide) or can
be adjusted from +0.8V to +4.5V with an external resis-
tive-divider.
An internal PMOS pass transistor allows low 210µA
supply current, making this device ideal for portable
equipment such as personal digital assistants (PDAs),
cellular phones, cordless phones, and other equip-
ment, including base stations and docking stations.
Other features include an active-low, power-OK output
that indicates when the output is out of regulation, a
0.02µA shutdown mode, short-circuit protection, and
thermal shutdown protection. The MAX1806 comes in a
miniature 1.3W, 8-pin power-µMAX package with a
metal pad on the underside of the package.
19-2018; Rev 0; 4/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+2.25V TO +5.5V
500mA, Low-Voltage Linear Regulator in µMAX
ON
1µF
C
IN
V
Notebook Computers
Cellular and Cordless Telephones
PDAs
Palmtop Computers
Base Stations
USB Hubs
Docking Stations
IN
OFF
Typical Operating Circuit
SET
IN
NC
SHDN
________________________________________________________________ Maxim Integrated Products
MAX1806
General Description
GND
OUT
POK
Applications
R
100kΩ
POK
0.8V TO 4.5V
C
10µF
V
OUT
OUT
TO
µC
o Guaranteed 500mA Output Current
o Output Down to 0.8V
o Low 175mV Dropout at 500mA
o ±1% Output Voltage Accuracy
o Power-OK Output
o Low 210µA Ground Current
o 0.02µA Shutdown Current
o Thermal Overload Protection
o Output Current Limit
o Tiny 1.3W, 8-Pin Power-µMAX Package
MAX1806EUA_ _
PART AND SUFFIX
MAX1806EUA33
MAX1806EUA25
MAX1806EUA18
MAX1806EUA15
MAX1806EUA08
Preset at 0.8V, 1.5V, 1.8V, 2.5V, or 3.3V
Adjustable from 0.8V to 4.5V
TOP VIEW
PART
SHDN
POK
IN
IN
1
2
4
3
Ordering Information
-40°C to +85°C
T EM P. R A N G E
MAX1806
V
µMAX
OUT
3.3
2.5
1.8
1.5
0.8
Pin Configuration
(V)
Selector Guide
7
6
5
8
OUT
SET
OUT
GND
PIN-PACKAGE
8 Power-µMAX
TOP MARK
Features
AAAG
AAAH
AAAK
AAAJ
AAAI
1

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MAX1806EUA15 Summary of contents

Page 1

... Low 210µA Ground Current o 0.02µA Shutdown Current o Thermal Overload Protection o Output Current Limit o Tiny 1.3W, 8-Pin Power-µMAX Package PART Applications MAX1806EUA_ _ PART AND SUFFIX MAX1806EUA33 MAX1806EUA25 MAX1806EUA18 MAX1806EUA15 MAX1806EUA08 V OUT TOP VIEW 0.8V TO 4.5V C OUT 10µF R POK 100kΩ ...

Page 2

... SHDN Input Threshold V IL SHDN Input Bias Current I SHDN Startup Time T START Dual Mode is a trademark of Maxim Integrated Products, Inc. 2 _______________________________________________________________________________________ Operating Temperature .......................................-40°C to +85°C Junction Temperature ......................................................+150°C + 0.3V) IN Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C ...

Page 3

Low-Voltage Linear Regulator in µMAX ELECTRICAL CHARACTERISTICS (continued 500mV OUT(SETPOINT) IN noted. Typical values are +25°C.) A PARAMETER SYMBOL POWER-OK POK Output Low Voltage V Operating Voltage Range for ...

Page 4

Low-Voltage Linear Regulator in µMAX ELECTRICAL CHARACTERISTICS (continued) = +2.25V whichever is greater, SET = GND, SHDN = IN 500mV OUT(SETPOINT) IN wise noted. Typical values are +25°C.) ...

Page 5

Low-Voltage Linear Regulator in µMAX + 500mV, SHDN = IN, C (MAX1806EUA33 OUT GROUND-PIN CURRENT vs. LOAD CURRENT 500 450 V = 5.5V IN 400 350 V = 3.8V IN 300 250 200 150 100 ...

Page 6

Low-Voltage Linear Regulator in µMAX + 500mV, SHDN = IN, C (MAX1806EUA33 OUT LOAD-TRANSIENT RESPONSE NEAR DROPOUT 10µs/div SHUTDOWN WAVEFORM R = 6.6Ω (500mA) OUT 20µs/div PIN NAME Regulator Input. Supply voltage can range from ...

Page 7

Low-Voltage Linear Regulator in µMAX Detailed Description The MAX1806 is a low-dropout, low-quiescent-current linear regulator. The device supplies loads up to 500mA and is available with preset output voltages. As illustrated in Figure 1, the MAX1806 includes a 0.8V ...

Page 8

Low-Voltage Linear Regulator in µMAX V IN +2.25V TO +5. 1µF ON SHDN OFF SHUTDOWN LOGIC LOGIC SUPPLY VOLTAGE (V ) OUT R POK 100kΩ MAX1806 POK TO µC Figure 1. Functional Diagram ing a ...

Page 9

Low-Voltage Linear Regulator in µMAX IN OUT V IN +2.25V TO +5.5V IN OUT C IN MAX1806 1µF ON SHDN SET OFF POK GND Figure 2. Adjustable Output Using External Feedback Resistors response graphs (see Typical Operating Characteris- tics) ...

Page 10

... Maxim reserves the right to change the circuitry and specifications without notice at any time. implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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