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MIC59150YME-TR

P1-P3P4-P6P7-P9P10-P12
MIC59150
Ultra High Speed 1.5A LDO
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 2008
M9999-121808-A
General Description
The MIC59150 is a high-bandwidth, low-dropout, 1.5A
linear voltage regulator ideal for powering core voltages of
low-power microprocessors. The MIC59150 implements a
dual supply configuration allowing for a very low output
impedance and a very fast transient response.
The MIC59150 requires a bias input supply and a main
input supply, allowing for ultra-low input voltages on the
main supply rail. The device operates from an input supply
of 1.0V to 3.8V and bias supply between 3V and 5.5V. The
MIC59150 offers adjustable output voltages down to 0.5V.
The MIC59150 requires a minimum output capacitance for
stability, working optimally with small ceramic capacitors.
The MIC59150 is available in an 8-pin EPAD SOIC
package and its junction temperature range is –40°C to
+125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• Input voltage range:
– V
IN
= 1.0V to 3.8V
– V
BIAS
= 3.0V to 5.5V
• Stable with 1µF ceramic capacitor
• Maximum dropout voltage of 250mV over temperature
• Adjustable output voltage down to 0.5V
• Ultra fast transient response
• Excellent line and load regulation specifications
• Logic controlled shutdown option
• Thermal shutdown and current limit protection
• Junction temperature range: –40°C to +125°C
• 8-pin EPAD SOIC
Applications
• Telecommunications processors
• Graphics processors
• Computer peripheral cards
• Logic IC power supply
• SMPS post regulators
• Microprocessors
• Digital TV’s
_________________________________________________________________________________________________________
Typical Application
VIN
VBIAS
VOUT
ADJ
EN
GND
VIN
V
BIA
S
EN
CIN=1µF
(Ceramic)
CBIAS=1µF
(Ceramic)
COUT=1µF
(Ceramic)
R1
R2
VOUT
MIC59150YM
E
Micrel, Inc. MIC59150
December 2008 2
M9999-121808-A
Ordering Information
Part Number Voltage
(1)
Junction Temperature Range Package Lead Finish
MIC59150YME Adj. –40°C to +125°C 8-Pin EPAD SOIC RoHS Compliant
Note:
1. Other Voltage available. Contact Micrel for detail.
Pin Configuration
1
2
3
4
8
7
6
5
GND
ADJ
VIN
VOU
T
EN
V
BIA
S
VIN
VOUT
8-Pin EPAD SOIC (ME)
Pin Description
Pin Number Pin Name Pin Function
1 EN Enable (Input): CMOS compatible input. Logic high = enable, logic low = shutdown.
2 VBIAS
Input bias voltage for powering all circuitry on the regulator with the exception of the
output power device.
3, 6 VIN Input voltage needed for the output power device.
4, 5 VOUT Regulator Output.
7 ADJ Adjustable regulator feedback input. Connect to resistor voltage divider.
8 GND Ground.
Micrel, Inc. MIC59150
December 2008 3
M9999-121808-A
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
)........................................ –0.3V to +4V
Bias Supply Voltage (V
BIAS
)............................. –0.3V to +6V
Enable Input Voltage (V
EN
)............................. –0.3V to V
BIAS
Power Dissipation .....................................Internally Limited
Storage Temperature (T
s
) .........................–65°C to +150°C
ESD Rating
(3)
................................................................+3kV
Operating Ratings
(2)
Supply Voltage (V
IN
)............................................ 1V to 3.8V
Bias Supply Voltage (V
BIAS
)................................. 3V to 5.5V
Enable Input Voltage (V
EN
).................................. 0V to V
BIAS
Junction Temperature (T
J
) ..................–40°C ≤ T
J
≤ +125°C
Package Thermal Resistance
EPAD SOIC (θ
JA
) ...............................................41°C/W
Electrical Characteristics
(4)
T
A
= 25°C with V
BIAS
= V
OUT
+ 2.2V; V
IN
= V
OUT
+ 1V; bold values indicate 0°C ≤ T
J
≤ 85°C, unless otherwise specified.
Parameter Condition Min Typ Max Units
Line Regulation (V
IN
) V
IN
= V
OUT
+ 1V to 3.8V, I
LOAD
= 10mA 0.002 ±0.1 %/V
Line Regulation (V
BIAS
)
V
BIAS
= 3V to 5.5V (V
OUT
< 0.8V), I
LOAD
= 10mA
V
BIAS
= V
OUT
+ 2.2V to 5.5V (V
OUT
≥ 0.8V), I
LOAD
= 10mA
0.026
±0.3
%/V
Room temperature 0.495 0.5 0.505 V
Feedback Voltage
(Adjustable Output Voltage)
Over temperature range
0.490
0.5
0.510
V
Output Voltage Load Regulation I
L
= 10mA to 1.5A 0.1
0.5
%
V
IN
– V
OUT
; Dropout Voltage
I
L
= 750mA
I
L
= 1.5A
65
100
150
250
mV
mV
V
BIAS
– V
OUT
; Dropout Voltage I
L
= 1.5A 0.85
2.1
V
V
BIAS
supply current
V
EN
= 2V, I
L
= 100mA
V
EN
= 2V, I
L
= 1.5A
1.3
12.5
7.5
75
mA
mA
V
BIAS
shutdown current V
EN
= 0V 0.02 1 µA
V
IN
shutdown current V
EN
= 0V 0.04 1 µA
FB bias current 0.03
1
µA
V
BIAS
rising
2.7
2.84
3.0
V UVLO
Hysteresis 100 mV
Current Limit V
OUT
= 0V
1.8
3.1
6.0
A
Enable Input
Enable Input Threshold
Regulator enable
Regulator shutdown
1.6 0.85
0.75
0.3
V
V
Enable Pin Input Current Independent of state 0.012
1
µA
AC Response
Large signal bandwidth 1 MHz
PSRR (BIAS) at 10kHz V
BIAS
= 3.3V, I
OUT
= 750mA 46 dB
PSRR (IN) at 10kHz
V
IN
= V
OUT
+ 1V, I
OUT
= 750mA
V
IN
= V
OUT
+ 0.3V, I
OUT
= 750mA
60
55
dB
dB
Thermal Shutdown 145 °C
Thermal Shutdown Hysteresis 12 °C
Turn-on Time 85
300
µs
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, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
P1-P3P4-P6P7-P9P10-P12

MIC59150YME-TR

Mfr. #:
Buy MIC59150YME-TR
Manufacturer:
Microchip Technology / Micrel
Description:
LDO Voltage Regulators Ultra Fast 1.5A LDO
Lifecycle:
New from this manufacturer.
Delivery:
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