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Micrel Semiconductor
Micrel Semiconductor

MIC2295BD5 Datasheet Preview

MIC2295BD5 Datasheet

High Power Density 1.2A Boost Regulator

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MIC2295BD5 pdf
MIC2295
High Power Density 1.2A Boost Regulator
General Description
The MIC2295 is a 1.2Mhz, PWM dc/dc boost
switching regulator available in low profile Thin
SOT23 and 2mm x 2mm MLF package options.
High power density is achieved with the MIC2295’s
internal 34V / 1.2A switch, allowing it to power large
loads in a tiny footprint.
The MIC2295 implements constant frequency
1.2MHz PWM current mode control. The MIC2295
offers internal compensation that offers excellent
transient response and output regulation
performance. The high frequency operation saves
board space by allowing small, low-profile external
components. The fixed frequency PWM scheme also
reduces spurious switching noise and ripple to the
input power source.
The MIC2295 is available in a low-profile Thin
SOT23 5-lead package and a 2mm x2mm 8-lead
MLF leadless package. The 2mm x 2mm MLF
package option has an output over-voltage
protection feature.
The MIC2295 has an operating junction temperature
range of –40°C to +125°C
Features
2.5V to 10V input voltage range
Output voltage adjustable to 34V
1.2A switch current
1.2MHz PWM operation
Stable with small size ceramic capacitors
High efficiency
Low input and output ripple
<1mA shutdown current
UVLO
Output over-voltage protection (MIC2295BML)
Over temperature shutdown
Thin SOT23-5 package option
2mm x 2mm leadless 8-lead MLF package
option
–40oC to +125oC junction temperature range
Applications
Organic EL power supplies
3.3V to 5V/500mA conversion
TFT-LCD bias supplies
Flash LED drivers
Positive and negative output regulators
SEPIC converters
Positive to negative Cuk converters
12V supply for DSL applications
Multi-output dc/dc converters
VIN
1-Cell
Li Ion
3V to 4.2V
C1
2.2µF
10µH
VOUT
15V/100mA
MIC2295BML
VIN SW
OVP
EN FB
AGND PGND
R1
100k
R2
9.01K
2.2µF
L1
10µH
VIN
1-Cell
Li Ion
C1
2.2µF
MIC2295 BD5
VIN SW
EN FB
GND
VOUT
5V/500mA
R1
10k
10µF
R2
3.3k
MLF and MicroLeadFrame is a trademark of Amkor Technology
July 2004
M9999-072204
(408) 955-1690



Micrel Semiconductor
Micrel Semiconductor

MIC2295BD5 Datasheet Preview

MIC2295BD5 Datasheet

High Power Density 1.2A Boost Regulator

No Preview Available !

MIC2295BD5 pdf
Micrel
MIC2295
Ordering Information
Part Number
Standard
Lead-Free
Output Over
Voltage
Protection
Marking Code
Standard Lead-Free
Junction
Temperature
Range
Package
MIC2295BD5 MIC2295YD5
MIC2295BML MIC2295YML
Pin Configuration
-
34V
SVAA
SXA
SVAA
SXA
-40°C to 125°C
-40°C to 125°C
Thin SOT23-
5
2mm x2mm
MLF-8L
Pin Description
MIC2295BD5
Thin SOT-23-5
1
2
3
4
MIC2295BML
2x2 MLF-8L
7
6
3
52
1
July 2004
5
4
8
EP
Pin Name
Pin Function
SW
GND
FB
EN
VIN
OVP
N/C
AGND
PGND
GND
Switch Node (Input): Internal power BIPOLAR collector.
Ground (Return): Ground.
Feedback (Input): 1.24V output voltage sense node.
VOUT = 1.24V ( 1 + R1/R2)
Enable (Input): Logic high enables regulator. Logic low
shuts down regulator.
Supply (Input): 2.5V to 10V input voltage.
Output Over-Voltage Protection (Input): Tie this pin to
VOUT to clamp the output voltage to 34V maximum in fault
conditions. Tie this pin to ground if OVP function is not
required.
No connect. No internal connection to die.
Analog ground
Power ground
Ground (Return). Exposed backside pad.
2 M9999-052402
(408) 955-1690


Part Number MIC2295BD5
Description High Power Density 1.2A Boost Regulator
Maker Micrel Semiconductor
Total Page 13 Pages
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