MIC4742YTSE Micrel Inc, MIC4742YTSE Datasheet - Page 4

• Manufacturer Part Number: MIC4742YTSE
• Description: 2 MHz Dual 2A Integrated Switch Buck Regulator
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of MIC4742YTSE

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: Adj to 0.6V
• Current - Output: 2A
• Frequency - Switching: 2MHz
• Voltage - Input: 2.9 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3355-5

Micrel, Inc.
Absolute Maximum Ratings
Supply Voltage (V
Output Switch Voltage (V
Output Switch Current (I
Input Voltage (V
Storage Temperature (T
Junction Temperature ................................................ 150°C
Lead Temperature (soldering, 10sec.)....................... 260°C
ESD Rating
Electrical Characteristics
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.
March 2009
V
Parameter
Supply Voltage Range
Under-Voltage Lockout Threshold
UVLO Hysteresis
Quiescent Current
Shutdown Current
[Adjustable] Feedback Voltage
FB pin input current
Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
Maximum Duty Cycle
Switch ON-Resistance
Oscillator Frequency
Switching Phase
Enable Threshold
Enable Hysteresis
Enable Input Current
Over-Temperature Shutdown
Over-Temperature Hysteresis
IN
= V
EN
= 3.6V; L = 1.0µH; C
(3)
................................................................. 2KV
EN
IN
), (V
) ......................................... -0.3V to +6V
FB
SW1,
s
), (V
) .........................–60°C to +150°C
SW1,
I
BIAS
SW2
V
SW2
OUT
) .......................-0.3V to V
)………...Internally Limited
).................. -0.3V to +6V
= 4.7µF; T
(4)
Condition
Turn-on
V
V
V
± 2% (over temperature) I
V
V
20mA < I
V
I
SW
FB
FB
EN
FB
IN
FB
(1)
= 2.9V to 5.5V; I
= 50mA V
= 0.9 * V
= 0.9 * V
= 0.9 * V
≤ 0.9 * V
= 0V
LOAD
A
= 25°C, unless noted. Bold values indicate –40°C< T
NOM
NOM
NOM
NOM
< 2A
FB
(not switching); V
(not switching); V
=GND
LOAD
= 100 µA
IN
LOAD
4
Operating Ratings
Supply Voltage (V
Logic Input Voltage (V
Junction Temperature (T
Junction Thermal Resistance
= 100µA
IN
IN
3mm x 3mm MLF
EPAD TSSOP (θ
= 5.5V
= 3.6V
IN
)..................................... +2.9V to +5.5V
JA
®
EN
)............................................35°C/W
(θ
) ....................................... 0V to V
J
JA
(2)
) ........................ –40°C to +125°C
0.588
2.45
Min
100
).....................................60°C/W
2.9
2.5
1.5
0.5
0.07
Typ
100
155
180
153
2.6
1.4
1.0
1.6
0.6
4.3
0.2
0.9
0.1
55
18
1
2
J
< +125°C.
0.612
M9999-030209-D
Max
5.5
2.7
3.0
2.3
1.3
10
2
MIC4742
Units
MHz
Deg
mV
mA
mA
mΩ
mV
µA
µA
nA
°C
°C
%
%
%
V
V
V
A
V
IN