MAX1819EBL33+T Maxim Integrated Products, MAX1819EBL33+T Datasheet

IC REG LDO 3.3V/ADJ 500MA 6-UCSP

MAX1819EBL33+T

Manufacturer Part Number
MAX1819EBL33+T
Description
IC REG LDO 3.3V/ADJ 500MA 6-UCSP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1819EBL33+T

Regulator Topology
Positive Fixed or Adjustable
Voltage - Output
3.3V, 1.25 ~ 5 V
Voltage - Input
2.5 ~ 5.5 V
Voltage - Dropout (typical)
0.133V @ 500mA, -
Number Of Regulators
1
Current - Output
500mA (Min)
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-UCSP®
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
5.5 V
Output Voltage
1.25 V to 5 V, 3.3 V
Output Type
Adjustable, Fixed
Dropout Voltage (max)
0.232 V at 500 mA
Output Current
500 mA
Line Regulation
0 %
Load Regulation
0.4 %
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
0.84 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Reference Voltage
1.25 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX1819 low-dropout linear regulator operates from
a 2.5V to 5.5V supply and delivers a guaranteed 500mA
load current with low 120mV dropout. The high-accuracy
(±1%) output voltage is preset at an internally trimmed
voltage (see the Selector Guide) or can be adjusted from
1.25V to 5V with an external resistive-divider.
An internal PMOS pass transistor allows the low 125µA
supply current to remain independent of load, making
this device ideal for portable battery-operated equip-
ment such as personal digital assistants (PDAs), cellu-
lar phones, cordless phones, base stations, and
notebook computers.
Other features include an active-low, open-drain reset
output that indicates when the output is out of regula-
tion, a 0.1µA shutdown, short-circuit protection, and
thermal shutdown protection. The device is available in
a miniature 6-pin UCSP™ package.
19-2072; Rev 0; 1/02
UCSP is a trademark of Maxim Integrated Products, Inc.
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.
TOP VIEW
(TOP OF PC BOARD/
BALLS SOLDERED DOWN)
500mA Low-Dropout Linear Regulator in UCSP
Notebook Computers
Cellular and Cordless Telephones
Personal Digital Assistants (PDAs)
Palmtop Computers
Base Stations
USB Hubs
Docking Stations
________________________________________________________________ Maxim Integrated Products
A
B
C
General Description
OUT
A1
C1
IN
1
Pin Configuration
MAX1819
UCSP
POK
SET
A2
C2
2
Applications
SHDN
GND
A3
C3
3
♦ Guaranteed 500mA Output Current
♦ Low 90mV Dropout at 500mA
♦ ±1% Initial Output Accuracy
♦ Preset Output at 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V
♦ Adjustable Output from 1.25V to 5V
♦ Power-OK Output
♦ Low 125µA Ground Current
♦ 0.1µA Shutdown Current
♦ Thermal Overload Protection
♦ Output Current Limit
♦ Tiny 840mW 6-Pin UCSP Package
*Insert the desired two-digit suffix (see Selector Guide) into the
blanks to complete the part number.
MAX1819EBL_ _ -T*
MAX1819EBL 15
MAX1819EBL 18
MAX1819EBL 20
MAX1819EBL 25
MAX1819EBL 33
MAX1819EBL 50
ON
V
1µF
IN
PART AND
C
= 2.5V TO 5.5V
IN
SUFFIX
PART
OFF
Typical Operating Circuit
SET
IN
NC
SHDN
1.5V or Adj
1.8V or Adj
2V or Adj
2.5V or Adj
3.3V or Adj
5V or Adj
-40°C to +85°C
Ordering Information
TEMP RANGE
MAX1819
V
OUT
GND
OUT
POK
Selector Guide
PIN-PACKAGE
6 UCSP
UCSP MARK
Features
R
100kΩ
AAH
AAG
AAC
AAD
AAE
AAF
POK
C
3.3µF
OUT
TO
µC
V
OUT
1

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MAX1819EBL33+T Summary of contents

Page 1

... UCSP™ package. Notebook Computers Cellular and Cordless Telephones Personal Digital Assistants (PDAs) Palmtop Computers Base Stations USB Hubs Docking Stations UCSP is a trademark of Maxim Integrated Products, Inc. Pin Configuration TOP VIEW (TOP OF PC BOARD BALLS SOLDERED DOWN) IN POK ...

Page 2

... SET Input Bias Current I Ground-Pin Current Dropout Voltage (Note ∆V Line Regulation Dual Mode is a trademark of Maxim Integrated Products, Inc. 2 _______________________________________________________________________________________ Operating Temperature Range ...........................-40°C to +85°C + 0.3V) Junction Temperature ......................................................+150°C IN Storage Temperature Range .............................-65°C to +150°C Soldering Temperature (10s) ...........................................+300°C SHDN = IN -40° ...

Page 3

Low-Dropout Linear Regulator in UCSP ELECTRICAL CHARACTERISTICS (continued) = 2.5V, whichever is greater; SHDN = IN 500mV OUT IN are +25°C.) (Note 2) A PARAMETER SYMBOL ∆V Load ...

Page 4

Low-Dropout Linear Regulator in UCSP + 500mV) or 2.5V, whichever is greater; SHDN = IN OUT DROPOUT VOLTAGE vs. LOAD CURRENT 260 240 V = 3.3V OUT 220 200 T = +85°C A 180 ...

Page 5

Low-Dropout Linear Regulator in UCSP + 500mV) or 2.5V, whichever is greater; SHDN = IN OUT SHUTDOWN WAVEFORM SHUTDOWN VOLTAGE V OUT P OK 200µs/div PIN NAME Regulator Input. Supply voltage can range from ...

Page 6

Low-Dropout Linear Regulator in UCSP V = 2. 1µF ON SHDN OFF LOGIC SUPPLY VOLTAGE (V ) OUT R POK 100kΩ POK TO µC Figure 1. Functional Diagram Additional blocks include an output ...

Page 7

Low-Dropout Linear Regulator in UCSP V = 2. OUT C IN MAX1819 1µF ON SHDN SET OFF POK GND Figure 2. Adjustable Output Using External Feedback Resistors The power-OK (POK) output pulls low when OUT ...

Page 8

Low-Dropout Linear Regulator in UCSP Applications Information Capacitor Selection and Regulator Stability Capacitors are required at the MAX1819’s input and output for stable operation over the full temperature range and with load currents up to 500mA. Connect a 1µF ...

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 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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