MIC4680-1.8BM Micrel Inc, MIC4680-1.8BM Datasheet - Page 4

• Manufacturer Part Number: MIC4680-1.8BM
• Description: IC REG BUCK 200KHZ 1A 1.8V 8SOIC
• Manufacturer: Micrel Inc
• Series: SuperSwitcher™r
• Type: Step-Down (Buck)r

Specifications of MIC4680-1.8BM

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 1A
• Frequency - Switching: 200kHz
• Voltage - Input: 4 ~ 34 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Absolute maximum rating is intended for voltage transients only, prolonged dc operation is not recommended.
4. V
5. Devices are ESD sensitive. Handling precautions recommended.
6. Measured on 1" square of 1 oz. copper FR4 printed circuit board connected to the device ground leads.
7. Test at T
Test Circuit
Shutdown Input Behavior
Micrel, Inc.
Parameter
Shutdown Input Logic
Level
Shutdown Input Current
Thermal Shutdown
March 2008
IN(min)
= V
A
OUT
= +85°C, guaranteed by design, and characterized to T
+ 2.5V or 4V whichever is greater.
SHUTDOWN
ENABLE
Condition
regulator off
regulator on
V
V
ON
SHDN
SHDN
0V
= 5V (regulator off)
= 0V (regulator on)
+12V
0.8V
Current Limit Test Circuit
2
1
1V
Shutdown Hysteresis
Device Under Test
SOIC-8
IN
SHDN
J
= +125°C.
GND
4
5–8
1.6V
SW
FB
3
4
2V
68µH
V
IN(max)
OFF
Min
–10
–10
2
–0.5
–1.5
Typ
160
1.6
1.0
I
Max
0.8
M9999-032808
10
10
MIC4680
Units
µA
µA
°C
V
V