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MIC5235YM5-TR

P1-P3P4-P6P7-P9
MIC5235
Ultra-Low Quiescent Current, 150mA
µCap LDO Regulator
General Description
The MIC5235 is a 150mA highly accurate, low dropout
regulator with high input voltage and ultra-low ground
current. This combination of high voltage and low ground
current makes the MIC5235 ideal for USB and portable
electronics applications, using 1-cell, 2-cell or 3-cell Li-Ion
battery inputs.
A µCap LDO design, the MIC5235 is stable with either
ceramic or tantalum output capacitor. It only requires a
2.2µF capacitor for stability.
Features of the MIC5235 includes enable input, thermal
shutdown, current limit, reverse battery protection, and
reverse leakage protection.
Available in fixed and adjustable output voltage versions,
the MIC5235 is offered in the IttyBitty
®
SOT-23-5 package
with a junction temperature range of –40°C to +125°C.
Features
• Wide input voltage range: 2.3V to 24V
• Ultra low ground current: 18µA
• Low dropout voltage: 310mV at 150mA
• High output accuracy: ±2.0% over temperature
• µCap: stable with ceramic or tantalum capacitors
• Excellent line and load regulation specifications
• Zero shutdown current
• Reverse battery protection
• Reverse leakage protection
• Thermal shutdown and current limit protection
• IttyBitty
®
SOT-23-5 package
• Adjustable output from 1.24V-20V
Applications
• USB power supply
• Cellular phones
• Keep-alive supply in notebook and portable computers
• Logic supply for high-voltage batteries
• Automotive electronics
• Battery powered systems
Typical Application
15
2
34
C
OUT
=2.2µF
ceramic
I
GND
=18µA
C
IN
=1.0µF
EN
MIC5235BM5
V
IN
V
OUT
=1.8V
R
1
R
2
10
15
20
25
30
35
40
49 14 19 24
GROUND CURRENT (µA)
INPUT VOLTAGE (V)
I
OUT
=10µA
I
OUT
= 1mA
I
OUT
= 100µA
Ultra-Low Current Adjustable Regulator Application
Ground Current vs. Input Voltage
IttyBitty is a registered trademark of Micrel, 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
May 2008
M9999-051508
Micrel, Inc. MIC5235
May 2008 2
M9999-051508
Ordering Information
Part Number Marking Codes
Standard Pb-Free Standard Pb-Free*
Voltage**
Junction
Temp. Range
Package
MIC5235-1.5BM5 MIC5235-1.5YM5 L215 L215 1.5V –40° to +125°C 5-Pin SOT-23
MIC5235-1.8BM5 MIC5235-1.8YM5 L218 L218 1.8V –40° to +125°C 5-Pin SOT-23
MIC5235-2.5BM5 MIC5235-2.5YM5 L225 L225 2.5V –40° to +125°C 5-Pin SOT-23
MIC5235-2.7BM5 MIC5235-2.7YM5 L227 L227 2.7V –40° to +125°C 5-Pin SOT-23
MIC5235-3.0BM5 MIC5235-3.0YM5 L230 L230 3.0V –40° to +125°C 5-Pin SOT-23
MIC5235-3.3BM5 MIC5235-3.3YM5 L233 L233 3.3V –40° to +125°C 5-Pin SOT-23
MIC5235-5.0BM5 MIC5235-5.0YM5 L250 L250 5.0V –40° to +125°C 5-Pin SOT-23
MIC5235BM5 MIC5235YM5 L2AA L2AA Adj. –40° to +125°C 5-Pin SOT-23
* Under bar symbol (_) may not be to scale.
** Contact factory regarding availability for voltages not listed.
Pin Configuration
IN
OUT
NC
EN
L2xx
13
45
2
GND
L2xx
IN
OUT
ADJ
EN
L2xx
13
45
2
GND
L2xx
SOT-23-5 (Fixed)
SOT-23-5 (Adjustable)
Pin Description
Pin Number Pin Name Pin Function
1 IN Supply Input.
2 GND Ground.
3 EN Enable (Input): Logic low = shutdown; logic high = enable.
NC (fixed) No Connect. 4
ADJ (adj.) Adjust (Input): Feedback input. Connect to resistive voltage-divider network.
5 OUT Regulator Output.
Micrel, Inc. MIC5235
May 2008 3
M9999-051508
Absolute Maximum Ratings
(1)
Input Supply Voltage ........................................ –20V to 38V
Enable Input Voltage....................................... –0.3V to 38V
Power Dissipation .....................................Internally Limited
Junction Temperature ...............................–40°C to +125°C
Storage Temperature ................................–65°C to +150°C
ESD Rating
(3)
Operating Ratings
(2)
Input Supply Voltage ......................................... 2.3V to 24V
Enable Input Voltage............................................ 0V to 24V
Junction Thermal....................................... –40°C to +125°C
Package Thermal Resistance
SOT-23-5 (θ
JA
).................................................235°C/W
Electrical Characteristics
(4)
T
A
= 25°C with V
IN
= V
OUT
+ 1V; I
OUT
= 100µA, Bold values indicate –40°C<T
J
<+125°C; unless otherwise specified.
Parameter Condition Min Typ Max Units
Output Voltage Accuracy Variation from nominal V
OUT
–1.0
–2.0
+1.0
+2.0
%
%
Line Regulation V
IN
= V
OUT
+ 1V to 24V 0.04 %
Load Regulation Load = 100µA to 150mA 0.25 1 %
Dropout Voltage
I
OUT
= 100µA
I
OUT
= 50mA
I
OUT
= 100mA
I
OUT
= 150mA
50
230
270
310
300
400
400
450
450
500
mV
mV
mV
mV
mV
mV
mV
Reference Voltage 1.22 1.24 1.25 V
Ground Current
I
OUT
= 100µA
I
OUT
= 50mA
I
OUT
= 100mA
I
OUT
= 150mA
18
0.35
1
2
30
35
0.7
2
4
µA
µA
mA
mA
mA
Ground Current in Shutdown V
EN
≤ 0.6V; V
IN
= 24V 0.1 1 µA
Short Circuit Current V
OUT
= 0V 350
500
mA
Output Leakage,
Reverse Polarity Input
Load = 500Ω; V
IN
= –15V –0.1 µA
Enable Input
Input Low Voltage Regulator OFF
0.6
V
Input High Voltage Regulator ON
2.0
V
Enable Input Current
V
EN
= 0.6V; Regulator OFF
V
EN
= 2.0V; Regulator ON
V
EN
= 24V; Regulator ON
–1.0
0.01
0.1
0.5
1.0
1.0
2.5
µA
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. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
P1-P3P4-P6P7-P9

MIC5235YM5-TR

Mfr. #:
Buy MIC5235YM5-TR
Manufacturer:
Microchip Technology / Micrel
Description:
LDO Voltage Regulators High Vin, Low Iq Regulator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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