ER3125QI Datasheet, PDF (6/30 Pages) Altera Corporation – MOSFET for Synchronous Buck or Boost Buck Converter

Page 6
Electrical Specifications Refer to “Block Diagram” on page 14 and “Typical Application Schematics” on page 4. Operating Conditions
Unless Otherwise Noted: V_PVIN = 12V, or V_AVINO = 4.5V ±10%, T_A = -40°C to +105°C. Typicals are at T_A = +25°C. Boldface limits apply across the
operating temperature range, -40°C to +105°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 5) TYP (Note 5) UNITS
POWER-ON RESET
Rising V_AVINO POR Threshold
Falling V_AVINO POR Threshold
V_AVINO POR Hysteresis
ENABLE
V_{PORH_RISE}
V_{PORL_FALL}
V_{PORL_HYS}
2.82
2.9
3.05 V
2.6
2.8
V
0.3
V
Enable On Voltage
Enable Off voltage
EN Pull-up Current
OSCILLATOR
V_ENH
V_ENL
I_{EN_PULLUP}
V_EN = 1.2V, V_PVIN = 24V
V_EN = 1.2V, V_PVIN = 12V
V_EN = 1.2V, V_PVIN = 5V
1.7
1.5
1.2
0.9
V
1
V
µA
µA
µA
PWM Frequency
F_OSC
R_T = 665kΩ
160
200
240 kHz
R_T = 51.1kΩ
1870 2200 2530 kHz
FSW pin connected to AVINO or floating or GND
450
500
550 kHz
MIN ON Time
MIN OFF Time
SYNCHRONIZATION
t_{MIN_ON}
t_{MIN_OFF}
130
225 ns
210
330 ns
Input High Threshold
VIH
2
V
Input Low Threshold
VIL
0.5
V
Input Minimum Pulse Width
25
ns
Input Impedance
100
kΩ
Input Minimum Frequency Divided by Free
1.1
Running Frequency
Input Maximum Frequency Divided by Free
1.6
Running Frequency
Output Pulse Width
Output Pulse High
C_SYNC = 100pF
VOH
R_LOAD = 1kΩ
100
ns
AVINO-
V
0.25
Output Pulse Low
VOL
GND
V
REFERENCE VOLTAGE
Reference Voltage
V_REF
System Accuracy
0.8
V
-1.0
+1.0 %
FB Pin Source Current
5
nA
Soft-start
Soft-Start Current
I_SS
ERROR AMPLIFIER
3
5
7
µA
Unity Gain-Bandwidth
DC Gain
C_LOAD = 50pF
C_LOAD = 50pF
10
MHz
88
dB
Enpirion Power Datasheet ER3125QI 2.5A Regulator with Integrated High-Side MOSFET for
Synchronous Buck or Boost Buck Converter
10040
May 28, 2014
May 2014 Altera Corporation
Rev A