Datasheet

ADP2114 Data Sheet
Rev. B | Page 4 of 40
Parameter Symbol Conditions Min Typ Max Unit
SYNC Pin Capacitance to GND C
SYNC
5 pF
SYNC Input Logic Low V
IL_SYNC
0.8 V
SYNC Input Logic High V
IH_SYNC
2.0 V
Phase Shift Between Channels 180 Degrees
CLKOUT Frequency
f
CLKOUT
f
CLKOUT
= 2 × f
SW
FREQ tied to GND 510 600 690 kHz
FREQ via 8.2 kΩ to GND 1020 1200 1380 kHz
FREQ via 27 kΩ to GND 2040 2400 2760 kHz
CLKOUT Positive Pulse Time t
CLKOUT
100 ns
CLKOUT Rise or Fall Time C
CLKOUT
= 20 pF 10 ns
CURRENT LIMIT All current limit parameters provided for
VDD = VINx = 2.75 V to 5.5 V
Peak Output Current Limit, Channel 1 I
LIMIT1
OPCFG tied to GND or via 4.7 kΩ to GND 2.4 3.3 4.0 A
OPCFG via 8.2 kΩ or 15 kΩ to GND 3.5 4.5 5.3 A
Peak Output Current Limit, Channel 2 I
LIMIT2
OPCFG tied to GND or via 4.7 kΩ to GND 2.4 3.3 4.0 A
OPCFG via 8.2 kΩ or 15 kΩ to GND 1.2 1.9 2.6 A
Current Sense Amplifier Gain G
CS
4 A/V
Hiccup Time f
SW
= 300 kHz 10 13.6 17 ms
Number of Cumulative Current Limit
Cycles to Go into Hiccup
8 Cycles
SWITCH NODE CHARACTERISTICS
High-Side, P-Channel R
DS ON
1
VDD = VINx = 3.3 V 68 mΩ
VDD = VINx = 5.0 V 52 mΩ
Low-Side, N-Channel R
DS ON
1
VDD = VINx = 3.3 V 32 mΩ
VDD = VINx = 5.0 V 27 mΩ
SWx Minimum On Time SW
ON MIN
VDD = VINx = 2.75 V to 5.5 V 107 ns
SWx Minimum Off Time SW
OFF MIN
VDD = VINx = 5.5 V 192 ns
VDD = VINx = 2.75 V 255 ns
SWx Maximum Leakage Current VDD = VINx = 2.75 V to 5.5 V; ENx = GND,
T
J
= −40°C to +115°C
0.1 15 µA
ENABLE INPUT
EN1, EN2 Logic Low Level EN
LOW
VDD = VINx = 2.75 V to 5.5 V 0.8 V
EN1, EN2 Logic High Level EN
HI
VDD = VINx = 2.75 V to 5.5 V 2 V
EN1, EN2 Input Leakage Current I
EN_LEAK
VDD = VINx = ENx = 2.75 V to 5.5 V,
T
J
= −40°C to +115°C
0.1 1 µA
THERMAL SHUTDOWN
Thermal Shutdown Threshold T
TMSD
150
°C
Thermal Shutdown Hysteresis 25
°C
SOFT START
SS1, SS2 Pin Current I
SS1
, I
SS2
VDD = VINx = 2.75 V to 5.5 V; V
SS
= 0 V 4.8 6.0 7.8 µA
Soft Start Threshold Voltage V
SS_THRESH
VDD = VINx = 2.75 V to 5.5 V 0.65 V
Soft Start Pull-Down Current VDD = VINx = 2.75 V to 5.5 V; EN = GND 0.5 mA
POWER GOOD All power good parameters provided for
VDD = VINx = 2.75 V to 5.5 V
Overvoltage PGOODx Rising Threshold
2
116 %
Overvoltage PGOODx Falling Threshold
2
100 108 114 %
Undervoltage PGOODx Rising Threshold
2
85 92 97 %
Undervoltage PGOODx Falling Threshold
2
84 %
PGOODx Delay 50 µs
PGOODx Leakage Current V
PGOODx
= VDD 0.1 1 µA
PGOODx Low Saturation Voltage I
PGOODx
= 1 mA 50 110 mV
1
Pin-to-pin measurements.
2
The thresholds are expressed in percentage terms of the nominal output voltage.