MIC3172YN Micrel Inc, MIC3172YN Datasheet - Page 4

• Manufacturer Part Number: MIC3172YN
• Description: IC REG SW 100KHZ 1.25A 8-DIP
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, Cukr

Specifications of MIC3172YN

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Current - Output: 1.25A
• Frequency - Switching: 100kHz
• Voltage - Input: 3 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Power - Output: 302mW
• Primary Input Voltage: 40V
• No. Of Outputs: 1
• Output Current: 3A
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Supply Voltage Range: 3V To 40V
• Termination Type: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 576-2255; MIC3172YN

Absolute Maximum Ratings MIC2172
Input Voltage.................................................................. 40V
Switch Voltage ............................................................... 65V
Sync Current............................................................... 50mA
Feedback Voltage (Transient, 1ms) ............................ ±15V
Operating Temperature Range
Electrical Characteristics MIC2172
Note 1, 3. Unless otherwise specified, V
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.
Micrel
Parameter
Reference Section
Feedback Voltage (V
Feedback Voltage Line
Regulation
Feedback Bias Current
(I
Error Amplifier Section
Transconductance
(∆I
Voltage Gain
(∆V
Output Current
Output Swing
Compensation Pin
Threshold
ON Resistance
Current Limit
Breakdown Voltage (BV)
April 2006
FB
COMP
8-pin PDIP .................................................–40 to +85°C
8-pin SOIC ................................................–40 to +85°C
)
COMP
/∆V
/∆V
FB
FB
)
)
FB
)
Condition
Pin 2 tied to pin 3
3V ≤ V
∆I
0.9V ≤ V
V
High Clamp, V
Low Clamp, V
Duty Cycle = 0
I
Duty Cycle = 50%, T
Duty Cycle = 50%, T
Duty Cycle = 80%, Note 2
3V ≤ V
I
SW
SW
COMP
COMP
= 1A, V
= 5mA
= 1.5V
IN
IN
= ±25µA
COMP
≤ 40V
≤ 40V
FB
= 0.8V
≤ 1.4V
FB
FB
IN
= 1.5V
= 5V.
= 1V
J
J
≥ 25°C
< 25°C
Output Switch Section
4
Junction Temperature................................–55°C to +150°C
Thermal Resistance
Storage Temperature ................................–65°C to +150°C
Soldering (10 sec.) ...................................................+300°C
θ
θ
JA
JA
8-pin PDIP ................................................. 130°C/W
8-pin SOIC................................................. 120°C/W
1.214
1.220
0.25
1.25
1.25
Min
500
125
100
3.0
2.4
1.8
0.8
0.6
65
1
1.240
0.35
0.76
Typ
310
800
175
3.9
2.1
0.9
75
1.264
1.274
MIC2172/3172
1100
2000
Max
0.03
0.52
1.08
1.25
750
350
400
6.0
7.0
2.3
1.1
3.5
2.5
[phone]
M9999-041806
1
3
µA/mV
µA/mV
Units
%/V
V/V
nA
nA
µA
µA
Ω
Ω
V
V
V
V
V
V
A
A
A
V