ISL78200_14 Datasheet, PDF (7/22 Pages) Intersil Corporation – 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter

ISL78200
Electrical Specifications Refer to the Block Diagram (page 4) and Typical Application Schematics (page 5). Operating conditions
unless otherwise noted: V_IN = 12V, or V_CC = 4.5V, T_A = -40°C to +105°C. Typicals are at T_A = +25°C.
Boldface limits apply over the operating temperature range, -40°C to +105°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 6) TYP (Note 6) UNITS
POWER-ON RESET
Rising V_CC POR Threshold
Falling V_CC POR Threshold
V_CC 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
Required Enable On Voltage
Required Enable Off Voltage
EN Pull Up Current
OSCILLATOR
V_ENH
V_ENL
I_{EN_PULLUP}
V_IN =24V
V_IN =12V
V_IN =5V
2
V
0.8
V
0.8
µA
0.5
µA
0.25
µA
PWM Frequency
F_OSC
R_T = 665kΩ
R_T = 51.1kΩ
FS pin connected to VCC or floating or GND
160 200 240 kHz
1950 2200 2450 kHz
450 500 550 kHz
MIN ON Time
MIN OFF Time
SYNCHRONIZATION
t_{MIN_ON}
t_{MIN_OFF}
130 225 ns
210 325 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
VCC-
V
0.25
Output Pulse Low
VOL
GND
V
REFERENCE VOLTAGE
Reference Voltage
System Accuracy
V_REF
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
Maximum Output Voltage
C_LOAD = 50pF
C_LOAD = 50pF
10
MHz
88
dB
3.6
V
7
FN7641.2
December 24, 2013