D05022-152HC
| Model | D05022-152HC |
| Description | N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages |
| PDF file | Total 22 pages (File size: 598K) |
| Chip Manufacturer | NSC |
LM2727/LM2737
Electrical Characteristics
(Continued)
V
CC
= 5V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
A
=T
J
=+25˚C. Limits appearing in
boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are guaranteed by design,
test, or statistical analysis.
Symbol
Parameter
BOOT Pin Quiescent Current
Conditions
BOOTV = 12V, EN = 0
0˚C to +125˚C
-40˚C to +125˚C
BOOT-SW = 5V
@
350mA
BOOT-SW = 5V
@
350mA
BOOT-SW = 5V
@
350mA
BOOT-SW = 5V
@
350mA
Min
Typ
Max
Units
GATE DRIVE
I
Q-BOOT
95
95
3
2
3
2
160
215
µA
R
DS1
R
DS2
R
DS3
R
DS4
OSCILLATOR
Top FET Driver Pull-Up ON
resistance
Top FET Driver Pull-Down ON
resistance
Bottom FET Driver Pull-Up ON
resistance
Bottom FET Driver Pull-Down
ON resistance
Ω
Ω
Ω
Ω
R
FADJ
= 590kΩ
R
FADJ
= 88.7kΩ
f
OSC
PWM Frequency
R
FADJ
= 42.2kΩ, 0˚C to +125˚C
R
FADJ
= 42.2kΩ, -40˚C to +125˚C
R
FADJ
= 17.4kΩ
R
FADJ
= 11.3kΩ
D
Max Duty Cycle
f
PWM
= 300kHz
f
PWM
= 600kHz
500
490
50
300
600
600
1400
2000
90
88
2.6
3.5
%
700
700
kHz
LOGIC INPUTS AND OUTPUTS
V
SD-IH
V
SD-IL
V
PWGD-TH-LO
SD Pin Logic High Trip Point
SD Pin Logic Low Trip Point
PWGD Pin Trip Points
0˚C to +125˚C
-40˚C to +125˚C
FB Voltage Going Down
0˚C to +125˚C
-40˚C to +125˚C
FB Voltage Going Up
0˚C to +125˚C
-40˚C to +125˚C
1.3
1.25
0.413
0.410
0.691
0.688
V
V
1.6
1.6
0.430
0.430
0.710
0.710
35
110
0.446
0.446
0.734
0.734
V
V
PWGD-TH-HI
PWGD Pin Trip Points
V
V
PWGD-HYS
PWGD Hysteresis (LM2737 only) FB Voltage Going Down FB Voltage
Going Up
mV
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the device may occur.
Operating ratings
indicate conditions for which the device
operates correctly.
Opearting Ratings
do not imply guaranteed performance limits.
Note 2:
The human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin.
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