MIC5308 MICREL [Micrel Semiconductor], MIC5308 Datasheet

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MIC5308

Manufacturer Part Number
MIC5308
Description
Low VIN/VOUT 150mA High PSRR ULDO with Ultra-Low IQ
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
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Manufacturer:
JRC
Quantity:
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General Description
The MIC5308 is a high performance, µCap low dropout
regulator, offering ultra-low operating current while
maintaining very fast transient response. The MIC5308
can source up to 150mA of output current and can
regulate down from a low input supply voltage to increase
system efficiency.
Ideal for battery operated applications; the MIC5308 offers
extremely low dropout voltage 45mV typically @ 150mA,
and low ground current at all load conditions (typically
23µA). The MIC5308 can also be put into a zero-off-mode
current state, drawing virtually no current when disabled.
The MIC5308 is available in fixed output voltages in the
tiny 6-pin 1.6mm x 1.6mm thin MLF
well as the 6-pin TSOT-23 for cost sensitive applications.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
ULDO is a trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
November 2007
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
2.7V to 4.2V
Li-Ion
MIC23050
DC-to-DC
Converter
®
leadless package as
C
1µF
BIAS
Features
• Input voltage range: 1.6V to 5.5V
• Guaranteed 150mA over temperature
• Ultra Low dropout voltage of 45mV at 150mA
• High PSRR, up to 90dB @ 1kHz
• Output Voltage range: 0.8V to 2.0V
• Very low ground current – 23µA under full load
• Bias supply voltage range: 2.5V to 5.5V
• Stable with 1µF ceramic output capacitor
• 150mA maximum output current at 1.6V input voltage
• Very fast transient response – ideal for digital loads
• Thermal shutdown and current limit protection
• Tiny 6-pin 1.6mm x 1.6mm Thin MLF
• Cost effective 6-pin TSOT-23 package
Applications
• Mobile Phones
• PDAs
• GPS Receivers
• Portable Electronics
C
1µF
408
IN
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Low V
BIAS
VIN
EN
GND
ULDO™ with Ultra-Low IQ
MIC5308
IN
VOUT
/V
BYP
OUT
MIC5308
150mA High PSRR
1.2V / 150mA
C
10nF
BYP
®
C
1µF
package
M9999-110807-B
OUT

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MIC5308 Summary of contents

Page 1

... The MIC5308 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5308 is available in fixed output voltages in the tiny 6-pin 1.6mm x 1.6mm thin MLF well as the 6-pin TSOT-23 for cost sensitive applications. ...

Page 2

... Micrel, Inc. Ordering Information Part Number Voltage MIC5308-1.2YMT 1.2V MIC5308-1.5YMT 1.5V MIC5308-1.8YMT 1.8V MIC5308YMT Adj. MIC5308-1.2YD6 1.2V MIC5308-1.5YD6 1.5V MIC5308-1.8YD6 1.8V MIC5308YD6 Adj. Notes For other voltage options. Contact Micrel Marketing for details. ▲ Pin 1 identifier = . Pin Configuration BIAS 1 GND 2 VIN 3 6-Pin 1 ...

Page 3

... J Min Typ – 2.0 0.7595 0.775 0.01 0. 180 325 28 1.2 0.17 1.5 150 ) / θ – Exceeding the maximum allowable power D(max) J(max MIC5308 V BIAS V BIAS Max Units +2.0 % 0.7905 V 0.3 %/V 0.2 %/ 150 mV 35 µA 2.0 µ µV RMS 0 µ ...

Page 4

... ENABLE VOLTAGE (V) Output Voltage vs. Temperature 1.30 1. 3.6V BIAS 1. 1.2V OUT C = 1µF OUT I = 100µA OUT 1. TEMPERATURE (°C) 4 MIC5308 Ground Current ( vs. Temperature 150mA 6 5 100µ 2. 3.6V BIAS 1.2V OUT 1µF OUT TEMPERATURE (° ...

Page 5

... Reference Voltage vs. Temperature 0.900 V = 2.2V IN 0.875 V = 3.6V BIAS V = 1.2V OUT 0.850 C = 1µF OUT 0.825 I = 100µA OUT 0.800 0.775 0.750 0.725 0.700 TEMPERATURE (°C) 5 MIC5308 Current Limit vs 400 350 300 250 200 150 V = 1.8V OUT V = 3.6V BIAS 100 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VIN (V) M9999-110807-B ...

Page 6

... Micrel, Inc. Functional Characteristics November 2007 6 MIC5308 M9999-110807-B ...

Page 7

... Micrel, Inc. Functional Diagram November 2007 MIC5308 Block Diagram 7 MIC5308 M9999-110807-B ...

Page 8

... IN input voltage is 1.6V, allowing conversion from low voltage supplies. Output Capacitor The MIC5308 requires an output capacitor of 1µF or greater to maintain stability. The design is optimized for use with low-ESR ceramic chip capacitors. High ESR capacitors may cause high frequency oscillation. The output capacitor can be increased, but performance has been optimized for a 1µ ...

Page 9

... November 2007 ambient operating T J(max) the die θ 9 − ⎛ ⎞ J(max) A ⎜ ⎟ ⎜ ⎟ D(max) θ ⎝ ⎠ 125°C, the maximum junction temperature of thermal resistance = 90°C/W. JA MIC5308 M9999-110807-B ...

Page 10

... Micrel, Inc. Package Information November 2007 ® 6-Pin 1.6mm x 1.6mm Thin MLF (MT) 6-Pin TSOT-23 (D6) 10 MIC5308 M9999-110807-B ...

Page 11

... A 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 November 2007 indemnify Micrel for any damages resulting from such use or sale. © 2007 Micrel, Incorporated. 11 MIC5308 M9999-110807-B ...

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