MX879R IXYS, MX879R Datasheet - Page 57

• Manufacturer Part Number: MX879R
• Description: IC DVR RELAY/LOAD 8CH 60V 28-QFN
• Manufacturer: IXYS

Specifications of MX879R

• Input Type: Parallel/Serial
• Number Of Outputs: 8
• Current - Output / Channel: 120mA
• Voltage - Supply: 6 V ~ 60 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• On-state Resistance: -
• Current - Peak Output: -

MX846-02
50 mA Switched Capacitor Buck-Boost
DC/DC Converter with Regulated Output
Features
• Fully Regulated Output Voltage (5 V and Adjustable)
• Input Voltage Range from 3 V to 5 V
• 50 mA Output Current
• Output Accuracy: ±5%
• High Switching Frequency: 1MHz
• Low Power Shutdown Mode: 1 µA (Typical)
• Minimum Number of Low Cost External Components
• 8 lead, RoHS compliant, SOIC package
• Wide Temperature Range: -40°C to +85°C
Applications
• Local 3V to 5V Conversions
• Battery Powered Devices
• Computer Peripherals and Add-On Cards
• Portable Instruments
• Mobile Phones
Ordering Information
Functional Block Diagram
Part No.
MX846B
MX846BTR
EN_IN
DVCC
2
4
osc
CHARGE PUMP SWITCHES
Description
SOIC-8 Tube
SOIC-8 Tape and Reel
CPOS
1
CNEG
switch control
3
8
7
5
Qty
100
2500
CPO
DVSS
CP_FB
General Description
The MX846 is a 50 mA regulated output switched capacitor
Buck-Boost DC/DC Converter targeting portable, battery
powered devices. The MX846 supplies a high efficiency
regulated output voltage with a minimum number of external
components. The output is adjustable from 3 to 5 volts with an
accuracy of ±5%. The charge pump topology of the MX846
eliminates the need for an inductor making it ideal for low noise
applications.
With an operating range of 3 to 5 volts, and a typical shutdown
current of 1 µA, the MX846 is an optimum choice for portable
battery powered devices. A 1MHz switching frequency enables
the use of small charge pump and filter capacitors to meet the
demands of size sensitive applications.
Typical Application
GND
OFF
0.1µF 4.7µF
ON
DVCC
1.0µF
1
2
3
4
CPOS
DVCC
CNEG
EN_IN
CP_FB
DVSS
CPO
N/C
8
7
6
5
4.7µF
R1
R2
35