MIC38150_10 Datasheet, PDF (3/15 Pages) Micrel Semiconductor – HELDO® 1.5A High Efficiency Low Dropout Regulator

Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) .........................................................6V
Output Switch Voltage (V_SW) ...........................................6V
Logic Input Voltage (V_EN) ..................................-0.3V to VIN
Power Dissipation .................................. Internally Limited⁽³⁾
Storage Temperature (T_S)................... -65°C ≤ T_J ≤ +150°C
Lead Temperature (soldering, 10sec) ........................ 260°C
ESD Rating⁽⁴⁾ .............................................................. 1.5kV
MIC38150
Operating Ratings⁽²⁾
Supply voltage (V_IN) ...................................... 3.0V to 5.5V
Enable Input Voltage (V_EN) ................................. 0V to V_IN
Junction Temperature Range .........–40°C ≤ T_J ≤ +125°C
Package Thermal Resistance
4mm × 6mm MLF-28 (θ_JA) .............................24°C/W
Electrical Characteristics⁽⁵⁾
TA = 25°C with VIN = VEN = 5V; IOUT = 10mA, VOUT = 1.8V. Bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Conditions
Min Typ
Supply Voltage Range
3.0
Under-Voltage Lockout Threshold
Turn-on
2.85
UVLO Hysteresis
100
Quiescent Current
IOUT = 0A, Not switching, Open Loop
1
Turn-on Time
VOUT to 95% of nominal
200
Shutdown Current
VEN = 0V
30
Feedback Voltage
±2.5%
0.975 1
Feedback Current
5
Dropout Voltage (VIN – VOUT)
Current Limit
Output Voltage Load Regulation
Output Voltage Line Regulation
Output Ripple
ILOAD = 1.5A; VOUT = 3V
VFB = 0.9×VNOM
VOUT = 1.8V, 10mA to 1.5A
VOUT = 1.8V, VIN from 3.0V to 5.5V
ILOAD = 1.5A, COUTLDO = 20µF, COUTSW = 20µF
LPF=25kΩ
0.85
1.75
3
0.1
0.35
2
Over-Temperature Shutdown
150
Over-Temperature Shutdown Hysteresis
15
Enable Input⁽⁶⁾
Enable Input Threshold
Regulator enable
0.90
1
Enable Hysteresis
20 100
Enable Input Current
0.03
Max
5.5
500
50
1.025
1.2
1
0.5
1.1
200
1
Units
V
V
mV
mA
µs
µA
V
nA
V
A
%
%/V
mV
°C
°C
V
mV
µA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
6. Enable pin should not be left open.
June 2010
3
M9999-061010-C