ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 4. Static Electrical Characteristics
Characteristics noted under conditions; 2.7V ≤ VIN ≤ 5.5V, 0.8V ≤ VOUT ≤ 3.3V, -25oC ≤ TA ≤ 85oC, CIN = COUT = 4.7µF,
L1 = 4.7µH (See Figure 1), unless otherwise noted. The typical specifications are measured at the following conditions;
TA = +25oC, VIN = 3.6V, fSW = 2.0MHz with the typical operating circuit (See Figure 1), unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
Supply Voltage
VIN
VOUT
IOUT
IDIS
2.7
0.8
-
-
-
5.5
3.3
-
V
V
Output Voltage (Factory preset)
Output Current
600
mA
µA
Total Supply Current(5)
Regulator disabled
-
-
0.1
65
1.0
85
Quiescent Current (Switching)
Sleepy Z-mode and ILOAD = 0mA
IQ
µA
Current Limit
IPK
mA
VOUT
V
Current rising at high side
-
900
-
-
Output Voltage Accuracy (% of output voltage)
Over load and temperature
∆VOUT
-3%
3%
UVLO Threshold(6)
VIN: 2.7 -5.5V
VIN rising
VUVLO
-
-
-
2.7
-
2.5
VIN falling
Enable Voltage
VEN
V
Regulator operating
Regulator shutdown
1.6
-
-
-
-
0.4
High Side Power MOSFET On Resistance
RDS(ON)H
mΩ
mΩ
%
VIN = 3.6V, VOUT = 1.8V, TA = 40°C, ILOAD = 150mA
-
-
-
-
-
250
350
0.5
0.5
3%
-
-
-
-
-
Low Side Power MOSFET On Resistance
RDS(ON)L
VIN = 3.6V, VOUT = 1.8V, TA = 40°C, ILOAD = 150mA
Load Regulation
∆VOUT/∆IOUT
∆VOUT/∆VIN
VSTO
1.0mA < ILOAD < 600mA and VOUT = 1.8V
Line Regulation
%
VIN = 2.7V to 5.5V
Start-up Overshoot (% of output voltage)
VOUT
ILOAD = 0mA, VOUT = 1.8V and COUT = 4.7µF
Thermal Shutdown Threshold (Junction Temperature)
Thermal Shutdown Hysteresis (Junction Temperature)
TSTDN
-
-
140
10
-
-
°C
°C
THYSTR
Notes
5. Maximum IDIS measured at VIN = 3.6V and TA = 25°C.
6. For a product with a VOUT of 3.3V and a VIN minimum less than 3.6V, the VOUT value will track (drop below 3.3V) VIN down to a value
of 2.5V, where the UVLO shutdown mechanism will activate.
MC34727
Analog Integrated Circuit Device Data
Freescale Semiconductor
6
FREESCALE [ Freescale ]
