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MIC69502WR

P1-P3P4-P6P7-P9
MIC69502
5A, Low V
IN
, Low V
OUT
µCap LDO
Regulator
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 2006
M9999-121406-B
General Description
The MIC69502 is a 5A, low dropout linear regulator that
provides low voltage high current outputs with a minimum
of external components. It offers high precision and ultra
low dropout of 500mV under worst case conditions.
The MIC69502 operates from an input voltage of 1.65V to
5.5V. It is designed to drive digital circuits requiring low
voltage at high currents (i.e. PLDs, DSP, microcontroller,
etc.). The MIC69502 output is adjustable to a minimum of
0.5V.
The µCap design of the MIC69502 is optimized for stability
with low value low-ESR ceramic output capacitors.
Protection features of the MIC69502 include thermal
shutdown and current limit protection. Logic enable and
error flag pins are also available.
The MIC69502 is offered in the space-efficient S-PAK
package. It has an operating 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.
Features
• Input voltage range: V
IN
: 1.65V to 5.5V
• ±1.0% initial output tolerance
• Maximum dropout (V
IN
– V
OUT
) of 500mV
over temperature
• Adjustable output voltage down to 0.5V
• Stable with 10µF ceramic output capacitor (5A)
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• 7-Pin S-Pak package
• –40°C to +125°C Temperature Junction
Applications
• ASIC Core Voltage Regulator
• PLD/FPGA Core Power Supply
• Linear Point-of-Load Conversion
• High-Speed Post-Regulator
___________________________________________________________________________________________________________
Typical Application
Adjustable Regulator
0
50
250
300
350
Dropout Voltage
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
V
OUT
= 1.8V
C
OUT
= 10µF
5A
2.5A
100
150
200
Micrel, Inc. MIC69502
December 2006
2
M9999-121406-B
Ordering Information
Part Number*
Output
Current
Output
Voltage**
Junction
Temperature Range
Package
MIC69502WR 5A Adj. –40° to +125°C 7-Pin S-PAK
Note:
* RoHS compliant with ‘high-melting solder’ exemption.
** For fixed voltages available, please contact Micrel marketing for details.
Pin Configuration
7 ADJ
6 VOU
T
5 VOU
T
4 GND
3 VIN
2 VIN
1EN
7-Pin S-PAK (R)
Pin Description
Pin Number Pin Name Pin Function
1 EN
Enable (Input): CMOS compatible input. Logic high = enable,
logic low = shutdown. Do not float.
2, 3 VIN Input voltage which supplies current to the output power device.
4 GND Ground (TAB is connected to ground on S-Pak).
5, 6 VOUT Regulator Output.
7
ADJ
Adjustable regulator feedback input. Connect to resistor voltage divider. Applies
only to adjustable output voltage parts.
Micrel, Inc. MIC69502
December 2006
3
M9999-121406-B
Absolute Maximum Ratings
(1)
Supply Input Voltage (V
IN
)...........................................+6.0V
Enable Input Voltage (V
EN
).............................................. V
IN
Power Dissipation (P
D
) ........................... Internally Limited
(3)
Junction Temperature (T
J
) ..................–40°C ≤ T
J
≤ +125°C
Operating Ratings
(2)
Supply Voltage (V
IN
)................................... +1.65V to +5.5V
Enable Input Voltage (V
EN
)..................................... 0V to V
IN
Junction Temperature (T
J
) ..................–40°C ≤ T
J
≤ +125°C
Package Thermal Resistance
S-PAK-7 (θ
JC
).......................................................2°C/W
Electrical Characteristics
(4)
T
A
= 25°C with V
IN
= V
OUT
+ 1V; bold values indicate –40°C< T
J
< +125°C; I
OUT
= 10mA, unless noted.
Parameter Conditions Min Typ Max Units
Output Voltage Accuracy At 25°C
Over temperature range
–1
–2
+1
+2
%
%
Output Voltage Line Regulation
(Note 5)
V
IN
= V
OUT
+1.0V to 5.5V 0.2 0.5 %
Output Voltage Load Regulation I
L
= 10mA to 5A 0.2 %
V
IN
– V
O
; Dropout Voltage
(Note 6)
I
L
= 2.5A
I
L
= 5.0A
160
250
300
500
mV
mV
Ground Pin Current I
L
= 10mA
I
L
= 500mA
I
L
= 2.5A
I
L
= 5.0A
1
3
20
54
5
10
50
150
mA
mA
mA
mA
Ground Pin Current in Shutdown V
EN
= 0V 5
10
µA
Current Limit
5.5
10
A
Start-up Time V
EN
= V
IN
50
150
µs
Enable Input
Enable Input Threshold Regulator enable
Regulator shutdown
0.8
0.6
0.2
V
V
Enable Pin Input Current V
IN
≤ 0.2V (Regulator shutdown)
V
IN
≤ 0.8V (Regulator enable)
1
100
µA
µA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any T
A
(ambient temperature) is (P
D(max)
= T
J(max)
– T
A
) / θ
JA
. Exceeding the maximum allowable power
dissipation will result in excessive die temperature and the regulator will go into thermal shutdown.
4. Specification for packaged product only.
5. Minimum input for line regulation test is set to V
OUT
+ 1V relative to the highest output voltage.
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.
For outputs below 1.65V, dropout voltage is considered the input-to-output voltage differential with the minimum input voltage of 1.65V. Minimum
input operating voltage is 1.65V.
P1-P3P4-P6P7-P9

MIC69502WR

Mfr. #:
Buy MIC69502WR
Manufacturer:
Microchip Technology / Micrel
Description:
LDO Voltage Regulators 5A Low VIN LDO Regulator with 0.5Vref
Lifecycle:
New from this manufacturer.
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