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MIC33164 の電気的特性と機能

MIC33164のメーカーはMicrel Semiconductorです、この部品の機能は「4MHz 1A Buck Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 MIC33164
部品説明 4MHz 1A Buck Regulator
メーカ Micrel Semiconductor
ロゴ Micrel Semiconductor ロゴ 




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MIC33164 Datasheet, MIC33164 PDF,ピン配置, 機能
MIC33163/4
4MHz, 1A, Buck Regulator with Integrated
Inductor and HyperLight Load®
General Description
The MIC33163/4 is a highly-efficient synchronous buck
regulator with integrated inductor which provides the
optimal trade-off between footprint and efficiency. The
MIC33163/4 operates at 4MHz switching frequency and
provides up to 1A output current. In addition, the 100%
duty cycle and HyperLight Load® (HLL) mode-of-operation
delivers very-high efficiency at light loads and ultra-fast
transient response which makes the MIC33163/4 perfectly
suited for any space constrained application and great
alternative for low dropout regulators. An additional benefit
of this proprietary architecture is very low output ripple
voltage throughout the entire load range with the use of
small output capacitors.
The MIC33163/4 provides a small compact total solution
size of 4.6mm × 7mm with very few tiny external
components.
At higher loads, the MIC33163/4 provides a constant
switching frequency around 4MHz while achieving peak
efficiencies up to 93%. It also includes under-voltage
lockout to ensure proper operation under power-sag
conditions, internal soft-start to reduce inrush current, fold-
back current limit, power good (PG) indicator and thermal
shutdown. The MIC33163/4 is available in 20-pin 2.5mm ×
3.0mm × 1.1mm QFN package with an operating junction
temperature range from –40°C to +125°C.
Datasheets and support documentation are available on
Micrel’s website at: www.micrel.com.
Features
Integrated MOSFETs and inductor
100% duty cycle
4MHz PWM operation in continuous mode
1A output current
Low output voltage ripple
85% typical efficiency at 1mA, up to 93% peak efficiency
Ultra-fast transient response
Advanced copper lead frame design provides superior
thermal performance
Low-radiated emission (EMI) per EN55022, class B
Adjustable output voltage 0.7V to 5V
Thermal-shutdown and current-limit protection
Configurable soft-start with pre-bias start-up capability
Auto discharge of 180Ω (MIC33164 only)
Low profile 2.5mm × 3.0mm ×1.1mm QFN packages
0.1µA shutdown current
33µA quiescent current
Applications
5V point-of-load (POL)
Low-voltage distributed power systems
Space-constrained applications
Portable devices
SSD storage systems
Digital cameras
Typical Application
100
90
80
70
60
50
40
30
20
10
10
Efficiency vs.
Output Current
VOUT = 2.5V
VOUT = 1.8V
VOUT =3.3V
VIN = 5V
100
OUTPUT CURRENT(mA)
1000
HyperLight Load is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
May 22, 2014
Revision 1.1

1 Page





MIC33164 pdf, ピン配列
Micrel, Inc.
MIC33163/4
Absolute Maximum Ratings(3)
Supply Voltage (VIN = VAVIN = VPVIN) .................. 0.3V to 6V
Power Good Voltage (VPG)................................ 0.3V to 6V
Output Switch Voltage (VSW) ............................. 0.3V to 6V
Enable Input Voltage (VEN)................................0.3V to VIN
Junction Temperature (TJ) ....................................... +150°C
Storage Temperature Range (TS) ............. 65°C to +150°C
Lead Temperature (soldering, 10s)............................ 260°C
ESD Rating(5)................................................. ESD Sensitive
Operating Ratings(4)
Supply Voltage (VIN = VAVIN = VPVIN) .................2.7V to 5.5V
Enable Input Voltage (VEN) ..……………………….0V to VIN
Feedback Voltage (VFB) ...................................... 0.7V to VIN
Junction Temperature Range (TJ) . ….40°C TJ +125°C
Thermal Resistance
20-Pin 2.5mm × 3mm QFN (θJA)........................ 50°C/W
Electrical Characteristics(6)
TA = 25°C VIN =VEN = 3.6V; COUT = 22µF unless otherwise specified. Bold values indicate –40°C ≤ TJ +125°C, unless otherwise
noted.
Parameter
Condition
Min.
Typ.
Max. Units
Supply Voltage Range
2.7 5.5 V
Undervoltage Lockout Threshold (Turn-On)
2.40 2.53 2.65 V
Undervoltage Lockout Hysteresis
75 mV
Quiescent Current
Shutdown Current
IOUT = 0mA , VSNS > 1.2 × VOUT Nominal
VEN = 0V; VIN = 5.5V
33 55 µA
0.1 2 µA
Output Voltage Accuracy
Feedback Regulation Voltage
VIN = 3.6V if VOUTNOM < 2.5V, ILOAD = 20mA
VIN = 5.5V if VOUTNOM 2.5V, ILOAD = 20mA
2.5
0.682
+2.5
%
0.7 0.717 V
Current Limit
VSNS = 0.9 × VOUTNOM
2.5 3.3
A
Output Voltage Line Regulation
VIN = 3.6V to 5.5V, ILOAD = 20mA
0.3 %/V
Output Voltage Load Regulation
20mA ILOAD ≤ 1A, VIN = 3.6V
20mA ILOAD ≤ 1A, VIN = 5.5V
0.3
%
0.3
PWM Switch ON-Resistance
ISW = 100mA PMOS
ISW = 100mA NMOS
0.13
0.13
Switching Frequency
IOUT = 120mA
4 MHz
Soft-Start Time
VOUT = 90%, CSS = 1nF
1000
µs
Soft-Start Current
VSS = 0V
2.2 µA
Power Good Threshold (Rising) % of VNOM
85 90 95 %
Notes:
3. Exceeding the absolute maximum ratings may damage the device.
4. The device is not guaranteed to function outside its operating ratings.
5. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kin series with 100pF.
6. Specification for packaged product only.
May 22, 2014
3
Revision 1.1


3Pages


MIC33164 電子部品, 半導体
Micrel, Inc.
Typical Characteristics (Continued)
Output Voltage
vs. Output Current (DCM)
1.78
1.77
1.76
1.75
1.74
1.73
1.72
0
VIN = 3.6V
20 40 60 80 100 120 140
OUTPUT CURRENT (mA)
Output Voltage
vs. Output Current (CCM)
1.78
1.77
1.76
1.75
1.74
1.73
1.72
VIN = 3.6V
100 200 300 400 500 600 700 800 900 1000
OUTPUT CURRENT (mA)
MIC33163/4
1.85
1.83
1.81
1.79
1.77
1.75
1.73
1.71
1.69
1.67
1.65
-40
Output Voltage
vs. Temperature
VIN = 3.6V
-20 0 20 40 60 80 100
TEMPERATURE (°C)
92
91
90
89
88
87
86
85
84
83
82
2.5
PG Threshold
vs. Input Voltage
PG RISING
PG FALLING
3 3.5 4 4.5 5
INPUT VOLTAGE (V)
5.5
UVLO Threshold
vs. Temperature
2.6
2.58
UVLO ON
2.56
2.54
2.52
2.5 UVLO OFF
2.48
2.46
2.44
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
2.5
Enable Thresholds
vs. Input Voltage
CFF = 1nF
TCASE = 25°C
VOUT = 2V
3 3.5 4 4.5 5
INPUT VOLTAGE (V)
5.5
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-40
Enable Threshold
vs. Temperature
VIN = 3.6V
-20 0 20 40 60 80 100
TEMPERATURE (°C)
10000
1000
Switching Frequency
vs. Output Current
VIN = 5V
100 VIN = 3.6V
10
1
1 10 100 1000
OUTPUT CURRENT (mA)
Feedback Voltage
vs. Temperature
0.72
0.715
0.71
0.705
0.7
0.695
0.69
0.685
VIN =3.6V
VOUT = 1.75V
IOUT = 30mA
0.68
-40
-20 0 20 40 60 80
TEMPERATURE (°C)
100
May 22, 2014
6
Revision 1.1

6 Page



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共有リンク

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部品番号部品説明メーカ
MIC33163

4MHz 1A Buck Regulator

Micrel Semiconductor
Micrel Semiconductor
MIC33164

4MHz 1A Buck Regulator

Micrel Semiconductor
Micrel Semiconductor


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