Datasheet

ADP5052 Data Sheet
Rev. 0 | Page 6 of 40
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
Error Amplifier (EA), COMP2 Pin
EA Transconductance g
m2
310 470 620 µS
Soft Start
Soft Start Time t
SS2
2.0 ms SS12 connected to VREG
Programmable Soft Start Range
2.0
8.0
ms
Hiccup Time t
HICCUP2
7 × t
SS2
ms
C
OUT
Discharge Switch On Resistance R
DIS2
250 Ω
CHANNEL 3 SYNC BUCK REGULATOR
FB3 Pin
Fixed Output Options V
OUT3
1.20 1.80 V Fuse trim
Adjustable Feedback Voltage V
FB3
0.800 V
Feedback Voltage Accuracy V
FB3(DE FAULT )
−0.55 +0.55 % T
J
= 25°C
−1.25 +1.0 % 0°C ≤ T
J
≤ 85°C
−1.5
+1.5
%
−40°C ≤ T
J
≤ +125°C
Feedback Bias Current I
FB3
0.1 µA Adjustable voltage
SW3 Pin
High-Side Power FET
On Resistance
R
DSON(3H)
225 mΩ Pin-to-pin measurement
Low-Side Power FET
On Resistance
R
DSON(3L)
150 mΩ Pin-to-pin measurement
Current-Limit Threshold I
TH(ILIM3)
1.7 2.2 2.55 A
Minimum On Time t
MIN_ON3
90 120 ns f
SW
= 250 kHz to 1.4 MHz
Minimum Off Time t
MIN_OFF3
1/9 × t
SW
ns f
SW
= 250 kHz to 1.4 MHz
Error Amplifier (EA), COMP3 Pin
EA Transconductance g
m3
310 470 620 µS
Soft Start
Soft Start Time t
SS3
2.0 ms SS34 connected to VREG
Programmable Soft Start Range 2.0 8.0 ms
Hiccup Time t
HICCUP3
7 × t
SS3
ms
C
OUT
Discharge Switch On Resistance R
DIS3
250 Ω
CHANNEL 4 SYNC BUCK REGULATOR
FB4 Pin
Fixed Output Options
V
OUT4
2.5
5.5
V
Fuse trim
Adjustable Feedback Voltage V
FB4
0.800 V
Feedback Voltage Accuracy V
FB4(DE FAULT )
−0.55 +0.55 % T
J
= 25°C
−1.25 +1.0 % 0°C ≤ T
J
≤ 85°C
−1.5 +1.5 % −40°C ≤ T
J
≤ +125°C
Feedback Bias Current I
FB4
0.1 µA
SW4 Pin
High-Side Power FET
On Resistance
R
DSON(4H)
225 mΩ Pin-to-pin measurement
Low-Side Power FET
On Resistance
R
DSON(4L)
150 mΩ Pin-to-pin measurement
Current-Limit Threshold
I
TH(ILIM4)
1.7
2.2
2.55
A
Minimum On Time t
MIN_ON4
90 120 ns f
SW
= 250 kHz to 1.4 MHz
Minimum Off Time t
MIN_OFF4
1/9 × t
SW
ns f
SW
= 250 kHz to 1.4 MHz
Error Amplifier (EA), COMP4 Pin
EA Transconductance g
m4
310 470 620 µS
Soft Start
Soft Start Time t
SS4
2.0 ms SS34 connected to VREG
Programmable Soft Start Range 2.0 8.0 ms
Hiccup Time t
HICCUP4
7 × t
SS4
ms
C
OUT
Discharge Switch On Resistance R
DIS4
250 Ω