http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP1253 Datasheet

(MCP1252 / MCP1253) Low Noise / Positive-Regulated Charge Pump

No Preview Available !

MCP1253 pdf
MCP1252/3
Low-Noise, Positive-Regulated Charge Pump
Features:
• Inductorless, Buck/Boost, DC/DC Converter
• Low Power: 80 µA (Typical)
• High Output Voltage Accuracy:
- ±2.5% (VOUT Fixed)
• 120 mA Output Current
• Wide Operating Temperature Range:
- Industrial Temperature (I): -40°C to +85°C
- Extended Temperature (E): -40°C to +125°C
• Thermal Shutdown and Short-Circuit Protection
• Uses Small Ceramic Capacitors
• Switching Frequency:
- MCP1252: 650 kHz
- MCP1253: 1 MHz
• Low-Power Shutdown Mode: 0.1 µA (Typical)
• Shutdown Input Compatible with 1.8V Logic
• VIN Range: 2.0V to 5.5V
• Selectable Output Voltage (3.3V or 5.0V) or
Adjustable Output Voltage
• Space-Saving, 8-Lead MSOP
• Soft-Start Circuitry to Minimize In-Rush Current
• AEC-Q100 Qualified
Applications:
• White LED Backlighting
• Color Display Bias
• Local 3V-to-5V Conversions
• Flash Memory Supply Voltage
• SIM Interface Supply for GSM Phones
• Smart Card Readers
• PCMCIA Local 5V Supplies
Description:
The MCP1252/3 are inductorless, positive-regulated
charge pump DC/DC converters. The devices generate
a regulated fixed (3.3V or 5.0V) or adjustable output
voltage. They are specifically designed for applications
requiring low noise and high efficiency and are able to
deliver up to 120 mA output current. The devices allow
the input voltage to be lower or higher than the output
voltage, by automatically switching between buck/
boost operation.
The MCP1252 has a switching frequency of 650 kHz,
avoiding interference with sensitive IF bands. The
MCP1253 has a switching frequency of 1 MHz and
allows the use of smaller capacitors than the
MCP1252, thus saving board space and cost.
Both devices feature a power-good output that can be
used to detect out-of-regulation conditions. Extremely
low supply current and low external parts count (three
capacitors) make these devices ideal for small, battery-
powered applications. A shutdown mode is also pro-
vided for further power reduction. The MCP1252 and
MCP1253 feature thermal and short-circuit protection
and are offered in space-saving, 8-lead, MSOP
packages.
Package Types
MSOP (Fixed)
PGOOD
VOUT
VIN
GND
18
2 MCP1252 7
3 MCP1253 6
45
MSOP (Adjustable)
SELECT
SHDN
C+
C-
PGOOD
VOUT
VIN
GND
18
2 MCP1252 7
3 MCP1253 6
45
FB
SHDN
C+
C-
2002-2014 Microchip Technology Inc.
DS20001752C-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP1253 Datasheet

(MCP1252 / MCP1253) Low Noise / Positive-Regulated Charge Pump

No Preview Available !

MCP1253 pdf
MCP1252/3
Functional Block Diagram
PGOOD
MCP1252-33X50
MCP1253-33X50
84 mV +
1.21V +
140 k
173 k
100 k
VOUT
+
200 mV
VIN
GND
PGOOD
Switch
Control
MCP1252-ADJ
MCP1253-ADJ
VOUT
84 mV +
1.21V +
+
200 mV
VIN
GND
Switch
Control
SELECT
SHDN
C+
C-
FB
SHDN
C+
C-
DS20001752C-page 2
2002-2014 Microchip Technology Inc.


Part Number MCP1253
Description (MCP1252 / MCP1253) Low Noise / Positive-Regulated Charge Pump
Maker Microchip Technology
Total Page 20 Pages
PDF Download
MCP1253 pdf
Download PDF File
MCP1253 pdf
View for Mobile






Related Datasheet

1 MCP1252 (MCP1252 / MCP1253) Low Noise / Positive-Regulated Charge Pump Microchip Technology
Microchip Technology
MCP1252 pdf
2 MCP1253 (MCP1252 / MCP1253) Low Noise / Positive-Regulated Charge Pump Microchip Technology
Microchip Technology
MCP1253 pdf
3 MCP1256 Low-Ripple Charge Pump Microchip Technology
Microchip Technology
MCP1256 pdf
4 MCP1257 Low-Ripple Charge Pump Microchip Technology
Microchip Technology
MCP1257 pdf
5 MCP1258 Low-Ripple Charge Pump Microchip Technology
Microchip Technology
MCP1258 pdf
6 MCP1259 Low-Ripple Charge Pump Microchip Technology
Microchip Technology
MCP1259 pdf




Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components