MIC61300 Datasheet PDF - MICREL

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MIC61300
MICREL

Part Number MIC61300
Description Low Input Voltage Single-Supply High-Current LDO
Page 22 Pages


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MIC61300
Low Input Voltage, Single-Supply
High-Current LDO
General Description
Features
The Micrel MIC61300 is a 3A output, low input voltage,
single-supply regulator. This regulator operates over a
single input voltage range of 1.1V to 3.6V and offers an
ultra-low dropout less than 350mV over the entire
operating temperature range.
The MIC61300 is designed to drive digital circuits requiring
low voltages at high currents such as DSPs, FPGAs,
microcontrollers, etc. The regulator is available as a 1.0V
fixed-output voltage option or as an adjustable-output
voltage option.
The MIC61300 is stable with a 47µF, low-ESR ceramic
output capacitor, and includes protection features such as
thermal shutdown, current limiting and logic enable.
The MIC61300 is offered in two different packages: a low-
profile, leadless 10-pin 3mm x 3mm MLF® and a 10-pin
ePad MSOP. The MIC61300 has an operating junction
temperature range of 40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Single VIN rail: 1.1V to 3.6V
Output voltage accuracy: ±2.5% over temperature
Typical dropout of 150mV at room temperature
– Maximum dropout of 350mV at full load over
temperature
Output voltage adjustable down to 0.5V
Soft-start control via external capacitor
Excellent line and load regulation
Logic controlled shutdown
Thermal-shutdown and current-limit protection
10-pin 3mm × 3mm MLF® package
10-pin ePad MSOP package
Junction temperature range from 40°C to +125°C
Applications
Point-of-load applications
ASIC / Microprocessor power supply
FPGA power supply
Telecom / Networking cards
Wireless infrastructure
____________________________________________________________________________________________________________
Typical Application
Dropout Voltage
vs. Output Current
200
150
VIN = 1.5V
VFB = 0V
TA = 25ºC
100
50
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0
0.0
1.0 2.0
OUTPUT CURRENT (A)
3.0
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, 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
September 2010
M9999-092910-A



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Micrel, Inc.
Ordering Information
Part Number
MIC61300YMME
MIC61300-10YMME
MIC61300YML
MIC61300-10YML
Top Mark
61300
Z10J
ZJ30
10ZJ
Voltage
Adjustable
1.0V
Adjustable
1.0V
Temperature Range
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
Package
ePad MSOP-10L
ePad MSOP-10L
3mmx3mm MLF®-10L
3mmx3mm MLF®-10L
MIC61300
Lead Finish
Pb Free
Pb Free
Pb Free
Pb Free
Pin Configuration
10-Pin ePad MSOP (MME)
10-Pin 3mm x 3mm MLF® (ML)
Pin Description
Pin Number
1, 2
3
4
5, 6
Pin Name
IN
GND
EN
NC
7 CP
FB
8
SENSE
9, 10
EP
OUT
GND
Pin Function
Input Voltage.
Ground: Input and output return pin.
Enable: Active-high control input that allows turn-on/-off of the LDO.
No external function. Tie to ground.
Internal Charge Pump Circuit Output: Connect a 0.1µF to 1µF capacitor from CP pin-to-GND to
control the ramp rate of the output.
Adjustable Regulator Feedback Input: Connect to the resistor voltage divider network that is
placed from OUT pin to GND pin in order to set the output voltage.
Fixed-Output Voltage Sense Input: Apply a Kelvin connection from this pin of the fixed output at
the point-of-load to sense the output voltage level.
Regulator Output: The output voltage is set by the resistor divider connected from VOUT to GND
(with the divided connection tied to FB). A 47µF ceramic capacitor with low ESR is required to
maintain stability. See Applications Information.
Connect to GND.
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Micrel, Inc.
MIC61300
Absolute Maximum Ratings(1, 2)
VIN to GND...................................................... 0.3V to 4.5V
VCP to GND..................................................... 0.3V to 5.5V
VOUT to GND ...................................................... 0.3V to VIN
VSENSE to GND ................................................... 0.3V to VIN
VEN to GND..................................................... 0.3V to 4.5V
VFB to GND ........................................................ 0.3V to VIN
Junction Temperature (TJ) ......................................... 150°C
Lead Temperature (soldering, 10 sec.)...................... 260°C
Storage Temperature (TS).........................65°C to +150°C
Operating Ratings(3)
Supply Voltage (VIN)......................................... 1.1V to 3.6V
Enable Voltage (VEN)...................................... 0.3V to 3.6V
Output Voltage Range (VOUT)........................... 0.5V to 3.0V
Ambient Temperature Range (TA) .............. –40°C to +85°C
Junction Temperature (TJ) ........................ –40°C to +125°C
Maximum Power Dissipation (PD) ............................. Note 4
Package Thermal Resistance
3mm × 3mm MLF-10L (θJA) ............................60.7°C/W
ePad MSOP-10 (θJA) ......................................76.7°C/W
Electrical Characteristics(5)
VIN = VOUT + 0.4V; VEN = 1.1V; IOUT = 10mA; CCP = 0.1µF; COUT = 47µF; TJ = 25°C. Bold values indicate –40°C TJ +125°C, unless
noted.
Parameter
Condition
Min.
Typ.
Max.
Units
Power Supply Input
Input Voltage Range (VIN)
1.1 3.6 V
Ground Pin Current
IOUT = 3A; VIN = 1.4V
IOUT = 3A; VIN = 3.6V
1.8
mA
7.6 15
Ground Current in Shutdown
VEN = 0V; VIN = 2V; VOUT = 0V
0.1 10
µA
Reference
Feedback Pin Voltage (FB Pin)
Adjustable Output
0.495
0.4875
0.500
0.500
0.505
0.5125
Output Voltage Accuracy
(SENSE Pin)
Load Regulation
Line Regulation(6)
FB Pin Current
Current Limit
Fixed Output
IOUT = 10mA to 3A
VIN = (VOUT + 0.4V) to 3.6V
VFB = 0.5V
1
2.5
0.35
0.2
0 +1
0 +2.5
0.35
0.12 0.2
0.01 1
Current Limit
VOUT = 0V
3.5 4.7
Dropout Voltage
Dropout Voltage (VIN VOUT)
IOUT = 3A
150 350
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. Devices are ESD sensitive. Handling precautions recommended. Human body model (HBM), 1.5k in series with 100pF.
3. The device is not guaranteed to function outside its operating rating.
4. PD(MAX) = (TJ(MAX) – TA) / θJA, where θJA, depends upon the printed circuit layout. See “Applications Information.”
ww5.w.DSpaetaciSfihcaeteiot4nUfo.cr opmackaged product only.
6. VOUT (%) = (0.12) × VIN
V
%
%
%/V
µA
A
mV
September 2010
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Micrel, Inc.
MIC61300
Electrical Characteristics(5) (Continued)
VIN = VOUT + 0.4V; VEN = 1.1V; IOUT = 10mA; CCP = 0.1µF; COUT = 47µF; TJ = 25°C. Bold values indicate –40°C TJ +125°C, unless
noted.
Parameter
Condition
Min.
Typ.
Max.
Units
Enable Input
EN Logic Level High
EN Logic Level Low
EN Hysteresis
EN Pin Current
Start-Up Time
Minimum Load Current
Minimum Load Current
Thermal Protection
Over-Temperature Shutdown
Over-Temperature Shutdown
Hysteresis
VEN = 0.2V (Regulator Shutdown)
VEN = 3.6V (Regulator Enabled)
CCP = 0.1µF; COUT = 10µF
VIN = 1.2V, VOUT = 0.5V
TJ Rising
1.1 0.6
V
0.5 0.2
V
100 mV
0.02
µA
15
250 750
µs
10
160
5
mA
°C
°C
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September 2010
4 M9999-092910-A



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