MIC2827 Datasheet, PDF (5/27 Pages) Micrel Semiconductor – Triple Output PMIC with HyperLight Load™ DCDC, two LDOs, and I2C Control

Micrel, Inc.
MIC2827
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_DVIN, V_LDO1IN, V_LDO2IN)............ -0.3V to +6V
Enable Voltage (V_EN) ....................................... -0.3V to +6V
I²C Voltage (V_SDA, V_SCL) ................................... -0.3V to +6V
Power Dissipation ................................. Internally Limited⁽³⁾
Lead Temperature (Soldering, 10 sec.) ..................... 260°C
Storage Temperature (T_S)...................–65°C ≤ T_J ≤ +150°C
ESD Rating⁽⁴⁾ ................................................................. 2kV
Operating Ratings⁽²⁾
DVIN Supply voltage (V_DVIN)......................... +2.7V to +5.5V
LDO Supply voltage (V_LDO1IN, V_LDO2IN) ............+1.8V to V_DVIN
Enable Input Voltage (V_EN)..................................0V to V_DVIN
I²C Voltage (V_SDA, V_SCL) .................................... 0V to +5.5V
Junction Temperature Range (T_J)............. –40°C to +125°C
Junction Thermal Resistance
2.5mm x 2.5mm Thin MLF-14 (θ_JA) ...................89°C/W
Electrical Characteristics⁽⁵⁾ – DC/DC Converter
DVIN = EN = 3.6V; LDO1, LDO2 disabled; L=1µH, C_OUT =4.7µF, I_OUT= 20mA, T_A = 25°C, unless otherwise specified.
Bold values indicate -40°C≤T_J≤+125°C.
Parameter
Conditions
Min Typ Max Units
Supply Voltage Range
2.7
5.5
V
Under-Voltage Lockout
Threshold
Rising
2.45 2.55 2.65
V
Switcher Quiescent Current,
HLL
I_OUT = 0mA, FB > 1.2 * V_OUT Nominal
25
35
µA
Shutdown Current
EN = 0V, DVIN = 5.5V
2
5
µA
Output Voltage Accuracy
DVIN = 3.6V; I_LOAD = 20mA
-3
+3
%
Current Limit in PWM Mode
FB = 0.9* V_OUT(NOM)
0.55
1
A
Output Voltage Line Regulation
Output Voltage Load Regulation
PWM Switch ON-Resistance
Frequency
SoftStart Time
Enable Voltage
DVIN = 3.0V to 5.5V, I_LOAD = 20mA
20mA < I_LOAD < 500mA, DVIN = 3.6V
I_SW = 100mA PMOS
I_SW = -100mA NMOS
I_LOAD = 120mA
V_OUT = 90%
OFF
ON
0.4
0.5
0.55
0.6
4
300
0.2
1.2
%/V
%
Ω
Ω
MHz
µs
V
Enable Input Current
0.1
2
µA
Over-temperature Shutdown
160
°C
Over-temperature Shutdown
Hysteresis
20
°C
VPOR Threshold
% of V_OUT below Nominal
Auto-Discharge NFET
resistance
V_OUT Ramping Up
V_OUT Ramping Down
91
%
89
%
280
Ω
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 T_A (ambient temperature) is P_D(max) = (T_J(max) – T_A) / θ_JA. 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, 1.5kΩ in series with 100pF.
5. Specification for packaged product only.
July 2009
5
M9999-072709-A