MIC2807-MMYML TR Micrel Inc, MIC2807-MMYML TR Datasheet

PAM Power Management IC: DAC Controlled DC-DC + 2 LDOs

MIC2807-MMYML TR

Manufacturer Part Number
MIC2807-MMYML TR
Description
PAM Power Management IC: DAC Controlled DC-DC + 2 LDOs
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC2807-MMYML TR

Function
PA Management IC
Frequency
2MHz
Rf Type
CDMA2000, UMTS/WCDMA
Secondary Attributes
W/DAC Input and Bypass Switch
Package / Case
17-MLF®, QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-1746-2
MIC2807-MMYMLTR
MIC2807-MMYMLTR
General Description
The MIC2807 integrates a high performance 600mA
DC/DC converter intended for powering a power amplifier
(PA) in a mobile phone with dual low noise low dropout
(LDO) regulators for the rest of the RF section. Optimized
for low noise performance, the MIC2807 improves
efficiency in the handset without compromising quality.
The MIC2807 has a 2MHz, constant frequency pulse width
modulated (PWM) DC/DC converter designed for low
noise operation and high efficiency. The output voltage
(V
adjustable from 0.3V to 3.6V through a DAC input when
V
mode to offer maximum power and efficiency in the
application. In addition to 100% duty cycle, the DC/DC
converter has a bypass mode of operation where the input
voltage node (PVIN pin) is shorted to the output voltage
node (OUT pin) through a 95mΩ switch.
The integrated dual low noise low dropout regulators are
optimized for high PSRR capability and fast turn-on times.
The constant frequency DC/DC converter along with dual
low noise LDO regulators enables a very quiet and
efficient solution for mobile applications.
The MIC2807 is a µCap design, operating with small
ceramic output capacitors and inductors for stability,
reducing required board space and component cost and it
is available in the tiny 2.5mm x 2.8mm MLF
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Typical Application
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
February 2008
IN
OUT
> V
) is variable from 0.3V to the input voltage (V
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
OUT
CDMA2000/WCDMA RF Power Supply Circuit
. The converter will work in a 100% duty cycle
®
package.
IN
),
Features
• 2.7V to 5.5V input voltage range
• Stable with ceramic output capacitors
• Tiny 17-pin 2.5mm x 2.8mm MLF
• Thermal shutdown protection
• Current limit protection
RF PA Power Supply DC/DC Converter
• Adjustable output power supply – DAC controlled
• Bypass mode operation
• Up to 600mA output current in PWM mode
• 100% duty cycle operation for maximum efficiency
• Tiny 4.7µH, 1µF output inductor and capacitor
• Low-noise 2MHz PWM operation
• >90% efficiency
Dual Low Noise Low Dropout Regulators
• High accuracy – ±2% over temperature
• High PSRR – greater than 70dB
• Very low output noise – 32µVrms
• LDO1 – 200mA output current capability
• LDO2 – 30mA output current capability
Applications
• CDMA2000 mobile phones
• UMTS/WCDMA mobile phones
• Wibro modules
• WiFi modules
• Power amplifier modules (PAMs) with linear PAs
2MHz, 600mA DC/DC w/DAC Input and
V
Internal 95mΩ switch between PVIN and OUT pins
V
OUT
DAC
Bypass Switch, Dual Low Noise
200mA/30mA LDO Regulators
RF PA Power Management IC
= V
> 1.2V
DAC
x 3
MIC2807
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5
V
I
OUT
DC/DC Output Voltage
IN
= 4.2V
vs. DAC Voltage
= 100mA
DAC VOLTAGE (V)
®
Package
M9999-022008-B

Related parts for MIC2807-MMYML TR

MIC2807-MMYML TR Summary of contents

Page 1

... The constant frequency DC/DC converter along with dual low noise LDO regulators enables a very quiet and efficient solution for mobile applications. The MIC2807 is a µCap design, operating with small ceramic output capacitors and inductors for stability, reducing required board space and component cost and it is available in the tiny 2 ...

Page 2

... MLF (Top View) 2 Package Lead Finish ® 17-Pin 2.5mm x 2.8mm MLF Pb-Free ® 17-Pin 2.5mm x 2.8mm MLF Pb-Free ® 17-Pin 2.5mm x 2.8mm MLF Pb-Free ® 17-Pin 2.5mm x 2.8mm MLF Pb-Free ® (ML) MIC2807 M9999-022008-B ...

Page 3

... Enables LDO1 Regulator Enables the DC/DC Converter. 15 AVIN Supply voltage for DC/DC converter control circuitry and reference voltage circuit. Must be connected to PIN 5. 16 Connect. February 2008 = 1.5V ) when V DAC OUT ≤ OUT OUT DAC 3 MIC2807 > Bypass mode is IN OUT x 3. M9999-022008-B ...

Page 4

... OUT A Min Typ 2.7 480 1.3 30 0.01 2.6 85 160 20 1 100 490 360 1.8 1.746 0.05 0.2 0.55 0.6 0.65 0.85 2 1.8 MIC2807 Max Units V 5.5 µ µ 2.7 mV ºC ºC 5 µA % 650 µA 450 µ ...

Page 5

... OUT +1V to 5.5V > 2.8V OUT > 2.8V OUT > 2.8V OUT = 0.1µF BYP = 0.1µF BYP OUT +1V to 5.5V > 2.8V OUT > 2.8V OUT = 0.1µF BYP = 0.1µF BYP 5 MIC2807 Min Typ Max Units 25 µs 50 0.15 µ V/V 1.2 V 1.176 1.224 µ 150 mΩ ...

Page 6

... Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. 8. Ground pin current is the regulator quiescent current. February 2008 (ambient temperature D(max) J(max θ Exceeding the maximum allowable power A JA M9999-022008-B MIC2807 ...

Page 7

... INPUT VOLTAGE (V) DC/DC Switching Frequency vs. Temperature 3.5 3.0 2.5 2 0.5V DAC 1 1.5V OUT I = 300mA OUT 0.5 -40 - 100 120 TEMPERATURE (°C) 7 MIC2807 1.5V DC/DC Efficiency OUT 100 4. 3. 0.1 0.2 0.3 0.4 0.5 OUTPUT CURRENT (A) DC/DC Line Regulation 1 ...

Page 8

... OUT 100 3. 2.8V OUT 2.2µF OUT 0 0 100 1000 FREQUENCY (kHz) 8 MIC2807 LDO2 Line Regulation 2.810 2.805 2.800 2.795 I = 15mA OUT C = 1µF OUT 2.790 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 INPUT VOLTAGE (V) LDO1 Dropout Voltage vs. Temperature 3. 2.8V ...

Page 9

... Micrel, Inc. Typical Characteristics (LDO1/LDO2 cont.) LDO1/LDO2 Output Noise Spectral Density 10 1 0 2.8V OUT C = 1µF OUT 0.001 0.01 0 100 1000 10000 FREQUENCY (kHz) February 2008 9 MIC2807 M9999-022008-B ...

Page 10

... L = 4.7µH OUT Time (400ns/div) February 2008 C = 1µF OUT DC/DC Load Transient 300mA 1.8V OUT L = 4.7µ 1µF 10mA OUT Time (20µs/div) 10 DC/DC Start-Up Waveforms 1.8V OUT I = 300mA OUT L = 4.7µ 1µF OUT Time (10µs/div) M9999-022008-B MIC2807 ...

Page 11

... Micrel, Inc. Functional Characteristics (cont.) LDO1 Start-Up Waveforms Time (10µs/div) February 2008 V = 3.6V 10mA 2.8V OUT I = 200mA OUT C = 2.2µF OUT 11 MIC2807 LDO1 Load Transient 200mA 2.8V OUT C = 2.2µF OUT Time (20µs/div) M9999-022008-B ...

Page 12

... Micrel, Inc. Functional Diagram February 2008 MIC2807 Block Diagram 12 MIC2807 M9999-022008-B ...

Page 13

... Micrel, Inc. Device Functional Description The MIC2807 is a power management IC with a single integrated step-down regulator and two low dropout regulators. LDO1 is a 200mA low dropout regulator and LDO2 is a 30mA low dropout regulator. The 500mA pulse-width-modulated (PWM) utilizes a dynamically adjustable output voltage for powering RF power amplifiers ...

Page 14

... February 2008 Inductor Selection The MIC2807 is designed for use with a 4.7µH inductor. Proper selection should ensure that the inductor can handle the maximum average and peak currents required by the load. Maximum current ratings of the inductor are generally given in two methods ...

Page 15

... Micrel, Inc. PCB Layout February 2008 Layout Schematic 15 MIC2807 M9999-022008-B ...

Page 16

... Micrel, Inc. February 2008 Top Layer 16 MIC2807 M9999-022008-B ...

Page 17

... Micrel, Inc. February 2008 Bottom Layer 17 MIC2807 M9999-022008-B ...

Page 18

... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully February 2008 17-Pin 2.5mm x 2.8mm MLF indemnify Micrel for any damages resulting from such use or sale. © 2006 Micrel, Incorporated. 18 ® (ML) MIC2807 M9999-022008-B ...

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