MAX1595EUA50+ Maxim Integrated Products, MAX1595EUA50+ Datasheet

IC CHARGE PUMP REG 5.0V 8-UMAX

MAX1595EUA50+

Manufacturer Part Number
MAX1595EUA50+
Description
IC CHARGE PUMP REG 5.0V 8-UMAX
Manufacturer
Maxim Integrated Products
Type
Step-Down (Buck), Step-Up (Boost), Switched Capacitor (Charge Pump)r
Datasheet
1.MAX1595EUA50.pdf (7 pages)

Specifications of MAX1595EUA50+

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
5V
Current - Output
125mA
Frequency - Switching
1MHz
Voltage - Input
1.8 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Power - Output
362mW
Function
Step Up/Step Down
Output Voltage
5 V
Output Current
125 mA (Max)
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1595 charge-pump regulator generates either
3.3V or 5V from a 1.8V to 5.5V input. The unique control
architecture allows the regulator to step up or step
down the input voltage to maintain output regulation.
The 1MHz switching frequency, combined with a
unique control scheme, allows the use of a ceramic
capacitor as small as 1µF for 125mA of output current.
The complete regulator requires three external capaci-
tors—no inductor is needed. The MAX1595 is specifi-
cally designed to serve as a high-power, high-
efficiency auxiliary supply in applications that demand
a compact design. The MAX1595 is offered in space-
saving 8-pin µMAX and high-power 12-pin thin QFN
packages.
19-2107; Rev 2; 6/09
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.
INPUT
White LED Power
Flash Memory Supplies
Battery-Powered Applications
Miniature Equipment
PCMCIA Cards
3.3V to 5V Local Conversion Applications
Backup-Battery Boost Converters
3V to 5V GSM SIMM Cards
Typical Operating Circuit
Regulated 3.3V/5.0V Step-Up/Step-Down
IN
SHDN
PGND
CXN
General Description
MAX1595
GND
CXP
AOUT
OUT
Applications
OUTPUT
♦ Ultra-Small: Requires Only Three Ceramic
♦ No Inductors Required
♦ Up to 125mA Output Current
♦ Regulated ±3% Output Voltage
♦ 1MHz Switching Frequency
♦ 1.8V to 5.5V Input Voltage
♦ 220µA Quiescent Current
♦ 0.1µA Shutdown Current
♦ Load Disconnect in Shutdown
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
**Contact factory for other fixed-output voltages from 2.7V to 5.0V.
Pin Configurations continued at end of data sheet.
MAX1595EUA33+
MAX1595ETC33+
MAX1595EUA50+
MAX1595ETC50+
MAX1595EUA33+
MAX1595ETC33+
MAX1595EUA50+
MAX1595ETC50+
Capacitors
PART
PART
TOP VIEW
SHDN
AOUT
GND
IN
1
2
3
4
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
V
Charge Pump
OUT
MAX1595
Pin Configurations
3.3
3.3
5.0
5.0
μMAX
Maxim Integrated Products
(V)**
Selector Guide
7
6
5
8
PIN-PACKAGE
8 µMAX
12 Thin QFN-EP*
8 µMAX
12 Thin QFN-EP*
OUT
CXP
CXN
PGND
Features
TOP M ARK
UDAA
AAEH
UJAN
AAEI
1

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MAX1595EUA50+ Summary of contents

Page 1

... PART MAX1595EUA33+ MAX1595ETC33+ MAX1595EUA50+ MAX1595ETC50+ +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. PART MAX1595EUA33+ MAX1595ETC33+ MAX1595EUA50+ MAX1595ETC50+ **Contact factory for other fixed-output voltages from 2.7V to 5.0V. TOP VIEW OUTPUT Pin Configurations continued at end of data sheet. Charge Pump Features Ordering Information TEMP RANGE PIN-PACKAGE 8 µ ...

Page 2

Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump ABSOLUTE MAXIMUM RATINGS IN, OUT, AOUT to GND............................................-0.3V to +6V SHDN to PGND ........................................................-0.3V to +6V PGND to GND .......................................................-0.3V to +0.3V CXN to PGND.....................-0.3V to (Lower 0.8V or 6.3V) CXP to ...

Page 3

Regulated 3.3V/5.0V Step-Up/Step-Down __________________________________________Typical Operating Characteristics (Circuit of Figure for MAX1595_ _ _33 LOAD SUPPLY CURRENT vs. SUPPLY VOLTAGE 10000 1000 100 OUT 0 ...

Page 4

Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump PIN NAME MAX1595 MAX1595 µMAX THIN QFN- AOUT SHDN GND PGND CXN 7 9 CXP 8 10, 11 OUT ...

Page 5

Regulated 3.3V/5.0V Step-Up/Step-Down Applications Information Using white LEDs to backlight LCDs is an increasingly popular approach for portable information devices (Figure 2). Because the forward voltage of white LEDs exceeds the available battery voltage, the use of a charge pump ...

Page 6

Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump Table 1. Recommended Capacitor Values OUTPUT RIPPLE (mV Table 2. Recommended Capacitor Manufacturers VALUE (µF) VOLTAGE ( 0.22 10 0.47 10 0.1 10 Pin Configurations (continued) TOP VIEW AOUT OUT OUT ...

Page 7

... 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 _____________________ 7 © 2009 Maxim Integrated Products ...

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