MIC4575-3.3BT Micrel Inc, MIC4575-3.3BT Datasheet - Page 3

• Manufacturer Part Number: MIC4575-3.3BT
• Description: IC REG 200KHZ 1.0A 3.3V TO-220-5
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of MIC4575-3.3BT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 1A
• Frequency - Switching: 200kHz
• Voltage - Input: 4 ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Straight Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Absolute Maximum Ratings
Supply Voltage (V
Shutdown Voltage (V
Output Switch (V
Storage Temperature (T
ESD
Electrical Characteristics
V
Notes:
1. The MIC4575 is not guaranteed to survive a short circuit to ground for input voltage above 24V.
2. Devices are ESD sensitive. Handling precautions recommended.
Micrel, Inc.
Parameter
MIC4575 [Adjustable]
Feedback Voltage
Feedback Voltage
Efficiency
Feedback Bias Current
MIC4575-3.3
Output Voltage
Output Voltage
Efficiency
MIC4575-5.0
Output Voltage
Output Voltage
Efficiency
MIC4575 / -3.3 / -5.0
Oscillator Frequency
Saturation Voltage
Maximum Duty Cycle (On)
Current Limit
Output Leakage Current
Quiescent Current
Standby Quiescent Current
SHDN Input Logic Level
SHDN Input Current
July 2009
IN
= 12V; I
(2)
LOAD
= 200mA; T
SW
IN
) .......................................................–1V
)
(1)
SHDN
..................................................+40V
s
) ........................... –65°C to 150°C
)............................. –0.3V to +36V
J
= 25°C, bold values indicate –40°C< T
Condition
8V ≤ V
I
6V ≤ V
I
8V ≤ V
I
I
FB connected to 0V
Peak Current, t
V
Output = 0V
Output = –1V
SHDN = 5V (regulator off)
V
V
SHDN = 5V (regulator off)
SHDN = 0V (regulator on)
LOAD
LOAD
LOAD
OUT
IN
OUT
OUT
= 24V, FB connected to 0V
= 1A
= 1A, V
= 1A
= 1A
= 0V (regulator off)
= 3.3 or 5V (regulator on)
(4)
IN
IN
IN
≤ 24V, 0.2A ≤ I
≤ 24V, 0.2A ≤ I
≤ 24V, 0.2A ≤ I
OUT
ON
= 5V
≤ 3µs
LOAD
LOAD
LOAD
≤ 1A
≤ 1A
≤ 1A
3
Operating Ratings
Supply Voltage (V
Junction Temperature (T
Package Thermal Resistance
TO-220, TO-263 (θ
TO-220, TO-263 (θ
J
< +85°C, unless noted.
IN
).....................................................+24V
JA
JC
J
) ........................................65°C/W
) ..........................................2°C/W
) ....................................... +150°C
1.217
1.193
1.180
3.234
3.168
3.135
4.900
4.800
4.750
Min
180
–10
1.7
1.3
2.2
2.4
90
1.230
1.230
0.01
Typ
200
3.3
3.3
5.0
5.0
2.2
7.5
1.4
1.2
77
50
72
77
50
95
1
0
5
4
M9999-072909
1.243
1.267
1.280
3.366
3.432
3.465
5.100
5.200
5.250
Max
220
100
500
200
1.3
1.5
3.0
3.2
1.0
0.8
35
10
30
10
2
MIC4575
Units
kHz
mA
mA
mA
nA
nA
µA
µA
µA
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
A
A
V
V
V
V