LMZ21701_15 Datasheet, PDF (5/37 Pages) Texas Instruments – LMZ21701 1 A SIMPLE SWITCHER® Nano Module with 17 V Maximum Input Voltage

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LMZ21701
SNVS853D – AUGUST 2012 – REVISED NOVEMBER 2014
7.5 Electrical Characteristics⁽¹⁾
Limits apply over the recommended operating junction temperature (T_J) range of -40 °C to +125 °C, unless otherwise stated.
Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most
likely parametric norm at T_J = 25 °C, and are provided for reference purposes only. Unless otherwise stated the following
conditions apply: V_IN = 12 V.
PARAMETER
TEST CONDITIONS
MIN ⁽¹⁾
TYP ⁽²⁾
MAX⁽¹⁾ UNIT
SYSTEM PARAMETERS
I_Q
Operating quiescent current
EN = high, I_OUT = 0 mA, T_J = -40 °C to
85 °C
device not switching
17
25
μA
EN = high, I_OUT = 0 mA, T_J = -40 °C to
125 °C
device not switching
17
28
μA
I_SD
VIN_UVLO
Shutdown current
Input under voltage lock out rising
threshold
EN = low, T_J = -40 °C to 85 °C
EN = low, T_J = -40 °C to 125 °C
1.5
1.5
2.8
2.9
4
μA
5
μA
3
V
VIN_UVLO-HYS
Input under voltage lock out
hysteresis
0.125
0.180
0.260
V
T_SD
T_SD-HYST
CONTROL
Thermal shutdown
Thermal shutdown hysteresis
Rising Threshold
160
°C
30
°C
V_{IH, ENABLE}
V_{IL, ENABLE}
I_LKG
V_{TH_PG}
Enable logic HIGH voltage
Enable logic LOW voltage
Input leakage current
Power Good threshold voltage
V_{OL_PG}
Power Good output low voltage
I_{LKG_PG}
Power Good leakage current
I_SS
Softstart Pin source current
POWER STAGE
EN = VIN or GND
Rising (% V_OUT)
Falling (% V_OUT)
I_PG = -2 mA
V_PG = 1.8 V
0.9
92 %
87 %
2.5
0.01
95 %
90 %
0.07
1
2.84
V
0.3
V
1
μA
98 %
93 %
0.3
V
400
nA
3.2
μA
R_DS(ON)
L
High-Side MOSFET ON
Resistance
Low-Side MOSFET ON
Resistance
Integrated power inductor value
V_IN ≥ 6 V
V_IN = 3 V
V_IN ≥ 6 V
V_IN = 3 V
82
mΩ
120
40
mΩ
50
2.2
μH
DCR
Integrated power inductor DC
resistance
92
mΩ
I_CL-HS
I_CL-LS
I_CL-DC
OUTPUT
High-Side MOSFET Current Limit
Low-Side MOSFET Current Limit
Output (DC) current limit
T_A = 25 °C
T_A = 25 °C
V_OUT = 5.0 V, T_A = 85 °C
1.4
1.8
1.2
1.3
2.2
A
A
A
V_REF
I_FB
V_OUT
Internal reference voltage
0.7869
0.803
0.8191
V
Feedback pin leakage current
Light load initial voltage accuracy
V_FB = 0.8 V
Power save mode, C_OUT = 22 µF, T_A =
-40 °C to 85 °C, 1% FB Resistors
-2.3 %
1
100
nA
2.8 %
V_OUT
Load regulation
V_OUT = 3.3 V
PWM mode operation
0.05 %
/A
V_OUT
Line regulation
3V ≤ V_IN ≤ 17 V, V_OUT= 3.3 V, I_OUT =
1000 mA
0.02 %
/V
PWM mode operation
(1) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely parametric norm.
Copyright © 2012–2014, Texas Instruments Incorporated
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