Changes to Ordering Guide .......................................................... 32
9/2007—Revision 0: Initial Version
Rev. D | Page 2 of 36
Data Sheet
SPECIFICATIONS
ADP1828
IN = 12 V, PV = V
EN
= V
TRK
= 5 V, SYNC = GND, unless otherwise specified. All limits at temperature extremes are guaranteed via corre-
lation using standard statistical quality control (SQC). T
J
= −40°C to +125°C, unless otherwise specified. Typical values are at T
A
= 25°C.
Table 1.
Parameter
POWER SUPPLY
IN Input Voltage
IN Input Voltage
IN Quiescent Current
IN Shutdown Current
VREG-to-GND Shutdown Impedance
VREG Undervoltage Lockout Threshold
VREG Undervoltage Lockout Hysteresis
ERROR AMPLIFER
FB Regulation Voltage
Test Conditions/Comments
PV is tied to VREG, IN is not tied to VREG (using internal regulator)
IN = PV = VREG, IN is tied to VREG (not using internal regulator)
Not switching, I
VREG
= 0 mA
EN = GND
EN = GND, IN is not tied to VREG
VREG rising
VREG falling
T
A
= 25°C, TRK > 700 mV
T
A
= 0°C to +70°C, TRK > 700 mV
T
J
= −40°C to +125°C, TRK > 700 mV
Min
5.5
3.0
1.5
5
1.6
2.7
0.125
600
Typ
Max
20
5.5
3.0
15
3.0
Unit
V
V
mA
μA
MΩ
V
V
mV
mV
mV
nA
dB
MHz
µA
µA
V
V
V
V
mV
mV
mA
mA
V
μF
V
%
ns
ns
kΩ
kΩ
mV
V
600
+5
100
mV
mV
nA
2.4
597
595
591
FB Input Bias Current
Open-Loop Voltage Gain
Gain-Bandwidth Product
COMP Sink Current
COMP Source Current
COMP Clamp High Voltage
COMP Clamp Low Voltage
LINEAR REGULATOR
VREG Output Voltage
VREG Load Regulation
VREG Line Regulation
VREG Current Limit
VREG Short-Circuit Current
IN to VREG Dropout Voltage
1
VREG Minimum Output Capacitance
PWM CONTROLLER
VRAMP Peak-to-Peak Voltage
2
DH Maximum Duty Cycle
DH Minimum On Time
DL Minimum On Time
SOFT START
SS Pull-Up Resistance
SS Pull-Down Resistance
SS to FB Offset Voltage
SS Pull-Up Voltage
TRACKING
TRK Common-Mode Input Voltage Range
TRK to FB Offset Voltage
TRK Input Bias Current
IN = VREG = 3 V
IN = 12 V
5
70
20
600
120
2.4
3.6
0.75
4.75
5.0
−10
1
220
140
0.6
603
605
609
100
IN = 5 V+ dropout voltage to18 V, I
VREG
=100 mA
T
J
= −40°C to +125°C
I
VREG
= 0 mA to 100 mA, IN = 5.25 V to 18 V
IN = 5 V+ dropout voltage to 18 V, no load
VREG drops to 4 V
VREG drops to 0.4 V
I
VREG
= 100 mA, IN < 5 V
5.25
60
1
0.7
91
200
1.0
FREQ = GND (300 kHz)
Any frequency
Any frequency
SS = GND
SS = 0.6 V
SS = 0 mV to 500 mV
1.0
93
100
200
90
6
−45
0.8
1.45
TRK = 0 mV to 500 mV
0
−5.5
Rev. D | Page 3 of 36
ADP1828
Parameter
OSCILLATOR
Oscillator Frequency
Test Conditions/Comments
SYNC = FREQ = GND
SYNC = GND, FREQ = VREG
R
FREQ
= 57.6 kΩ
R
FREQ
= 35.7 kΩ
R
FREQ
= 24.9 kΩ
FREQ = GND
FREQ = VREG
Min
240
480
240
370
480
300
600
200
Data Sheet
Typ
300
600
300
450
600
Max
360
720
360
530
720
600
1200
Unit
kHz
kHz
kHz
kHz
kHz
kHz
kHz
ns
pF
mV
μA
ns
ns
ns
ns
ns
Ω
Ω
Ω
Ω
ns
ns
ns
ns
ns
V
V
V
μA
V
V
μA
kΩ
°C
°C
SYNC Synchronization Range
SYNC Input Pulse Width
SYNC Pin Capacitance
CURRENT SENSE
CSL Threshold Voltage
CSL Output Current
Current Sense Blanking Period
GATE DRIVERS
DH Rise Time
DH Fall Time
DL Rise Time
DL Fall Time
DH or DL Driver R
ON
, Sourcing Current
3, 4
DH or DL Driver R
ON
, Sinking Current
3, 4
DH or DL Driver R
ON
, Sourcing Current
DH or DL Driver R
ON
, Sinking Current
DH to DL, DL to DH Dead Time
CLOCK OUT
CLOCKOUT Pulse Width
CLKOUT Rise or Fall Time
SYNC to CLKOUT Propagation Delay, t
PD
SYNC to CLKOUT Propagation Delay, t
PD
LOGIC THRESHOLDS
SYNC, CLKSET, FREQ Logic High
SYNC, CLKSET Logic Low
FREQ Logic Low
CLKSET, SYNC, FREQ Input Leakage
Current
EN Input Threshold
EN Input Threshold Hysteresis
EN Current Source
EN Input Impedance to 5 V Zener
THERMAL SHUTDOWN
Thermal Shutdown Threshold
4
Thermal Shutdown Hysteresis
4
5
Relative to PGND
CSL = PGND
−17
42
−38
50
100
15
10
15
10
2
1.5
2.3
2
40
360
10
40
52
1.8
0.4
0.25
1
1.1
EN = 0 V to 3.0 V
EN = 5.5 V to 20 V
−0.1
1.5
0.2
−0.6
100
145
15
1.8
−1.5
−58
56
C
DH
= 3 nF, V
BST
− V
SW
= 5 V
C
DH
= 3 nF, V
BST
− V
SW
= 5 V
C
DL
= 3 nF
C
DL
= 3 nF
Sourcing 1.5 A with a 0.1 µs pulse
Sinking 1.5 A with a 0.1 µs pulse
IN = VREG = 3 V; sourcing 1 A with a 0.1 µs pulse
IN = VREG = 3 V; sinking 1 A with a 0.1 µs pulse
C
CLKOUT
= 47 pF
C
CLKOUT
= 47 pF, C
SYNC
= 5 pF
C
CLKOUT
= 47 pF, C
SYNC
= 5 pF, IN < 5 V
CLKSET, SYNC, FREQ = 0 V or VREG
Rev. D | Page 4 of 36
Data Sheet
Parameter
POWER GOOD
FB Overvoltage Threshold
FB Overvoltage Hysteresis
FB Undervoltage Threshold
FB Undervoltage Hysteresis
PGOOD Propagation Delay
PGOOD Off Leakage Current
PGOOD Output Low Voltage
1
ADP1828
Test Conditions/Comments
V
FB
rising
V
FB
falling
Min
700
500
Typ
750
50
550
50
8
150
Max
810
585
Unit
mV
mV
mV
mV
μs
μA
mV
V
PGOOD
= 5.5 V
I
PGOOD
= 10 mA
1
500
Connect IN to VREG when IN < 5.5 V. For applications with IN < 5.5V and IN not connected to VREG, keep in mind that VREG = V
IN
– dropout. VREG needs to be ≥ 3 V for
proper operation.
2
V
RAMP
= 1.0 V × f
OSC
/f
SW
, where f
OSC
is the natural oscillator frequency and f
SW
is the actual switching frequency. If SYNC is not used, then f
OSC
= f
SW
. If SYNC is used,
then f
SW
= f
SYNC
.
3
With a 5 V drive, the peak source or sink current can be up to 2.5 A and 3.3 A, respectively, when driving external power MOSFETs. The duration of the peak current
pulse is generally in the order of 10 ns.
4
Guaranteed by design and characterization. Not subject to production test.
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