MIC23153 datasheet(3/18 Pages) MICREL

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Micrel Inc.

MIC23153

December 2009

M9999-121409-A

Absolute Maximum Ratings

(1)

Supply Voltage (VIN)........................................... -0.3V to 6V

Sense Voltage (VSNS) .........................................-0.3V to VIN

Output Switch Voltage (VSW) ..............................-0.3V to VIN

Enable Input Voltage (VEN).. ..............................-0.3V to VIN

Power Good Voltage (VPG).................................-0.3V to VIN

Storage Temperature Range .. ……………-65

°C to +150°C

Lead temperature (soldering, 10 sec.) ....................... 260

°C

ESD Rating

(3).................................................ESD Sensitive

Operating Ratings

(2)

Supply Voltage (VIN)... …………………………..2.7V to 5.5V

Enable Input Voltage (VEN) .. ……………………….0V to VIN

Sense Voltage (VSNS) ..................................... 0.62V to 3.6V

Junction Temperature Range (TJ)... ….-40°C ≤ TJ ≤ +125°C

Thermal Resistance

2.5mm x 2.5mm Thin MLF-10 (

θJA) ...................90°C/W

2.5mm x 2.5mm Thin MLF-10 (

θJC) ...................63°C/W

Electrical Characteristics

(4)

TA = 25°C; VIN = VEN = 3.6V; L = 1.0µH; COUT = 4.7µF unless otherwise specified.

Bold

values indicate –40°C

≤ TJ ≤ +125°C, unless noted.

Parameter

Condition

Min

Typ

Max

Units

Supply Voltage Range

2.7

5.5

Under-Voltage Lockout Threshold

(turn-on)

2.45

2.55

2.65

Under-Voltage Lockout Hysteresis

Quiescent Current

IOUT = 0mA , SNS > 1.2 * VOUT Nominal

µA

Shutdown Current

VEN = 0V; VIN = 5.5V

0.01

µA

VIN = 3.6V if VOUTNOM < 2.5V, ILOAD = 20mA

Output Voltage Accuracy

VIN = 4.5V if VOUTNOM ≥ 2.5V, ILOAD = 20mA

-2.5

+2.5

Feedback Regulation Voltage

ILOAD = 20mA

0.6045

0.62

0.635

Current Limit

SNS = 0.9*VOUTNOM

2.2

3.3

VIN = 3.6V to 5.5V if VOUTNOM < 2.5V, ILOAD = 20mA

Output Voltage Line Regulation

VIN = 4.5V to 5.5V if VOUTNOM ≥ 2.5V, ILOAD = 20mA

0.3

%/V

20mA < ILOAD < 500mA, VIN = 3.6V if VOUTNOM < 2.5V

20mA < ILOAD < 500mA, VIN = 5.0V if VOUTNOM ≥ 2.5V

0.3

20mA < ILOAD < 1A, VIN = 3.6V if VOUTNOM < 2.5V

Output Voltage Load Regulation

20mA < ILOAD < 1A, VIN = 5.0V if VOUTNOM ≥ 2.5V

0.7

PWM Switch ON-Resistance

ISW = 100mA PMOS

ISW = -100mA NMOS

0.2

0.19

Switching Frequency

IOUT = 120mA

MHz

Soft Start Time

VOUT = 90%, CSS = 470pF

320

µs

Soft Start Current

VSS = 0V

2.7

µA

Power Good Threshold (Rising)

Power Good Threshold Hysteresis

Power Good Delay Time

Rising

µs

Enable Threshold

Turn-On

0.5

0.9

1.2

Enable Input Current

0.1

µA

Over-temperature Shutdown

160

°C

Over-temperature Shutdown

Hysteresis

°C

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, 1.5kΩ in series with 100pF.

4. Specification for packaged product only.

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