ADP7157CP-04-EVALZ

EVAL-ADP7157 User Guide UG-810
Rev. A | Page 7 of 8
GROUND CURRENT CONSUMPTION
Ground current measurements can determine how much current
the internal circuits of the regulator consume while the circuits
perform the regulation function. For efficiency, the regulator must
consume as little current as possible. Typically, the regulator uses
the maximum current when supplying the largest load level (1.2 A).
The typical ground current consumption for various load current
levels at V
OUT
= 3.3 V and T
A
= 25°C is shown in Figure 8.
When the device is disabled (EN = GND), the ground current
typically drops to 0.2 µA.
F
igure 8. Ground Current (I
GND
) vs. Input Voltage (V
IN
), V
OUT
= 3.3 V, T
A
= 25°C,
C
IN
= C
OUT
= 10 µF
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6
I
GND
(mA)
V
IN
(V)
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 100mA
I
LOAD
= 600mA
I
LOAD
= 1200mA
12952-012
UG-810 EVAL-ADP7157 User Guide
Rev. A | Page 8 of 8
ORDERING INFORMATION
BILL OF MATERIALS
Table 3.
Reference Designator Description Manufacturer Part Number
U1 ADP7157, IC, ultralow noise, low dropout, linear regulator Analog Devices, Inc. ADP7157ACPZ-04-R7
C1, C5, C6
1
, C7
1
Capacitor, MLCC, 10 µF, 10 V, 0805, X5R, 10% TDK or equivalent C2012X5R1A106K125AB
C2, C4 Capacitor, MLCC, 1 µF, 10 V, 0805, X5R, 10% TDK or equivalent C2012X5R1A105K/10
C3 Capacitor, MLCC, 1 µF, 10 V, 0603, X5R, 10% TDK or equivalent C1608X5R1A105K080AC
R1, R2 Resistor, 1%, 0603 case Vishay Dale CRCW0603xxxxF
JP1 Jumper, PLUG, 2-position, single row Omron Electronics
Inc-EMC Div
XG8S-0241
VIN, VOUT, GND Header 0.100, single, straight, two pins Sullins Electronics/3M S1012E-36-ND
1
Not installed in the evaluation board.
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
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Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
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UG12952-0-4/16(A)

ADP7157CP-04-EVALZ

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
Power Management IC Development Tools VREG=3.6V/VOUT=3.3V evaluation board
Lifecycle:
New from this manufacturer.
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