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MIC22200 の電気的特性と機能

MIC22200のメーカーはMicrel Semiconductorです、この部品の機能は「2A Integrated Switch Synchronous Buck Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 MIC22200
部品説明 2A Integrated Switch Synchronous Buck Regulator
メーカ Micrel Semiconductor
ロゴ Micrel Semiconductor ロゴ 




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MIC22200 Datasheet, MIC22200 PDF,ピン配置, 機能
MIC22200
2A Integrated Switch Synchronous
Buck Regulator with Frequency
Programmable from 800kHz to 4MHz
General Description
Features
The Micrel MIC22200 is a high-efficiency, 2A integrated
switch synchronous buck (step-down) regulator. The
MIC22200 switching frequency is programmable from
800kHz to 4MHz, allowing the customer to optimize their
designs either for efficiency or for the smallest footprint.
The regulator achieves efficiencies as high as 95% while
still switching at 1MHz over a broad load range.
The ultra high-speed control loops keep the output voltage
within regulation even under the extreme transient load
swings commonly found in FPGAs and low-voltage ASICs.
The output voltage can be adjusted down to 0.7V to
address all low-voltage power needs.
The MIC22200 offers a full range of sequencing and
tracking options. The EN/DLY pin, combined with the
Power-On-Reset (POR) pin, allows multiple outputs to be
sequenced in many ways during turn on and turn off. The
RC (ramp control) pin allows the device to be connected to
another device in the MIC22X00 family of products to keep
the output voltages within a certain delta V on start up.
The MIC22200 is available in a 3mm × 3mm 12-pin MLF®
package with a junction operating range from –40°C to
+125°C.
Input voltage range: 2.6V to 5.5V
Adjustable output voltage option down to 0.7V
Output load current to 2A
Full sequencing and tracking capability
Easy RC compensation
Power-On-Reset (POR) output
Efficiency >90% across a broad load range
Operating frequency: Programmable from 800 kHz up to
4MHz
Ultra-fast transient response
100% maximum duty cycle
Fully integrated MOSFET switches
Micropower shutdown
Thermal-shutdown and current-limit protection
Available in Pb-free 3mm × 3mm MLF-12-pin MLF®
Package
–40°C to +125°C junction temperature range
Applications
High power density point-of-load conversion
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Servers/routers
DVD recorders and multimedia players
Computing peripherals
Base stations
FPGAs, DSP and low voltage ASIC devices
_________________________________________________________________________________________________________________________
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
December 2010
M9999-120310-C

1 Page





MIC22200 pdf, ピン配列
Micrel, Inc.
MIC22200
Absolute Maximum Ratings(1)
Supply Voltage (PVIN, SVIN ) ............................................+6V
Output Switch (SW)..........................................................6V
Logic Voltage (EN/DLY, POR, DELAY) ............VIN to -0.3V
Control Voltage (CF, RC, COMP, FB) ..............VIN to -0.3V
Lead Temperature (soldering 10s)............................. 260°C
Storage Temperature Range (Ts) .............65°C to +150°C
EDS Rating(3).................................................................. 2kV
Operating Ratings(2)
Supply Voltage (VIN)..................................... +2.6V to +5.5V
Junction Temperature Range (TJ).......40°C TJ +125°C
Thermal Resistance
3mm × 3mm MLF-12L (θJA) ...............................40°C/W
Electrical Characteristics(4)
TA = 25°C with VIN = VEN = 3.3V, unless otherwise specified. Bold values indicate 40°C TJ +125°C
Parameter
Condition
Min.
Supply Voltage Range
2.6
Under-Voltage Lockout Threshold
(turn-on)
2.4
UVLO Hysteresis
Quiescent Current, PWM mode
Shutdown Current
VEN 1.34V; VFB = 0.9V
VEN = 0V
Feedback Voltage
± 2% (over temperature)
0.686
Oscillator Frequency
0.8
FB Pin Input Current
Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
VFB = 0.9*VNOM
VIN = 2.6V to 5.5V
100mA < ILOAD < 2A, VIN = 3.3V
2
Maximum Duty Cycle
VFB 0.5V
100
Switch ON-Resistance PFET
Switch ON-Resistance NFET
EN/DLY Threshold Voltage
EN/DLY Hysteresis
ISW = 1000mA VFB=0.5V
ISW = -1000mA VFB=0.9V
VIN=3.3V
1.14
DELAY Threshold Voltage
DELAY Hysteresis
VIN=3.3V
1.14
EN/DLY Source Current
VIN = 2.6 to VIN = 5.5V
0.7
RC Source Current
Ramp Control Current
0.7
Typ.
2.5
280
1.2
3.7
0.7
1
1
5.5
0.2
0.2
0.18
0.10
1.24
12
1.24
6
1
1
POR IPG(LEAK)
VPORH = 5.5V; POR = High
POR VPG(LO)
Output Logic-Low Voltage
(undervoltage condition), IPOR = 5mA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
135
Max.
5.5
2.6
2
10
0.714
1.2
8
1.34
1.34
1.3
1.3
1
2
Units
V
V
mV
mA
µA
V
MHz
nA
A
%
%
%
V
mV
V
mV
µA
µA
µA
mV
December 2010 3 M9999-120310-C


3Pages


MIC22200 電子部品, 半導体
Micrel, Inc.
Typical Characteristics (Continued)
Channel RDSON
vs. Temperature
225
215
205
195
185
175
165
155
145 02 55 07 5 100 125
TEMPERATURE (°C)
Frequency
vs. CF
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
CF CAPICITOR (pF)
Channel RDSON
vs. Temperature
140
135
130
125
120
115
110
105
100
95
90 02 55 07 5 100 125
TEMPERATURE (°C)
Efficiency VOUT=1.8V
100
95 VIN = 3.3V
90
85
80 VIN = 5.0V
75
70
65
600 0.5 1 1.5
OUTPUT CURRENT (A)
2
MIC22200
Efficiency VOUT=3.3V
100
95
90
85
80
75
VIN = 5V
700 0.5 1 1.5 2
OUTPUT CURRENT (A)
Efficiency VOUT=1.2V
100
95
90 VIN = 3.3V
85
80
75 VIN = 5.0V
70
65
600 0.5 1 1.5
OUTPUT CURRENT (A)
2
December 2010 6 M9999-120310-C

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
MIC22200

2A Integrated Switch Synchronous Buck Regulator

Micrel Semiconductor
Micrel Semiconductor
MIC22205

Synchronous Buck Regulator

Micrel Semiconductor
Micrel Semiconductor


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